Including Image Analysis Patents (Class 128/922)
  • Patent number: 8050475
    Abstract: A technique for detecting and localizing vascular occlusions in the brain of a patient is presented. The technique uses volumetric angiographic data of the brain. A mid-sagittal plane and/or lines is/are identified within the set of angiographic data. Optionally, the asymmetry of the hemispheres is measured, thereby obtaining an initial indication of whether an occlusion might be present. The angiographic data is mapped to pre-existing atlas of blood supply territories, thereby obtaining the portion of the angiographic data corresponding to each of the blood supply territories. For each territory (including any sub-territories), the asymmetry of the corresponding portion of the angiographic data about the mid-sagittal plane/lines is measured, thereby detecting any of the blood supply territory including an occlusion. The angiographic data for any such territory is displayed by a three-dimensional imaging technique.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: November 1, 2011
    Assignee: Agency for Science, Technology and Research
    Inventor: Weislaw L. Nowinski
  • Patent number: 8051386
    Abstract: Systems, processors and methods display image views of stacks or volume image data and allow a user to navigate the data and/or views using CAD findings. The systems, methods or processors can generate vicinity CAD marks that have an appearance that varies depending (a) the proximity to the suspected abnormality and/or (b) the navigation direction required to move to the suspected abnormality. The visual appearance of a respective vicinity CAD mark in a view can correspond to proximity of the related suspected abnormality to a current view, whereby the vicinity CAD marks have higher intensity, color saturation, size, or other more dominant visual characteristic in views close to the suspected abnormality and lower intensity, color saturation, smaller size or other less dominant visual characteristic in views further away from the suspected abnormality.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 1, 2011
    Assignee: Sectra AB
    Inventors: Regina Rosander, Claes Lundström, Per Anell, Fredrik Häll, Jonas Rehn
  • Patent number: 8050469
    Abstract: The present invention relates to the field of digital imaging, in particular to the field of estimating geometrical properties of an anatomical object. According to the present invention, geometrical properties are automatically measured and geometrical properties which have a definition based on sub-parts of the object are derived. To do this, additional geometrical information is integrated into a surface model. Geometrical properties are included into the surface model by identifying and labelling sub-parts of the surface model and fitting geometric primitives to these sub-parts. This advantageously allows to identify these sub-parts on an unseen object surface and to automatically extract relevant geometric properties.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: November 1, 2011
    Assignee: Koninklijke Philips Electronics
    Inventors: Michael Kaus, Jürgen Weese, Steven Lobregt
  • Patent number: 8036734
    Abstract: A method for determining cardiac impulse conduction, in particular three-dimensional cardiac impulse conduction, in a patient, comprising: generating an image recording of an area of the body of the patient capturing at least partially electrocardiogram electrodes arranged on the body of the patient by an imaging modality; determining positions of the electrocardiogram electrodes in a system of coordinates assigned to the imaging modality; recording of potential data of some of the electrocardiogram electrodes; and reconstructing cardiac impulse conduction depending on the determined positions of the electrocardiogram electrodes, the image recording and the recording of potential data of the electrocardiogram electrodes, wherein at least one image recording is generated substantially simultaneously with the recording of potential data of the electrocardiogram electrodes or is generated in the period between two recordings of potential data of the electrocardiogram electrodes.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: October 11, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Sebastian Schmidt
  • Patent number: 8031919
    Abstract: Method for processing digital images, such as magnetic resonance images of a brain. The images contain a first object, for example the cerebrum white matter, a second object, for example the cerebral cortex, and a third object, for example the cerebrospinal fluid. The method involves providing a digital dataset representing a deformable curve or surface that in an initial state approximates the boundary between the first object and the second object. Further, a vector force field is provided that for each point on the deformable curve or surface defines a direction from the point approximately towards the second boundary between the second and the third object, and this vector force field is applied for iteratively deforming the deformable curve or surface convergently towards the second boundary.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: October 4, 2011
    Assignee: Aalborg Universitet
    Inventors: Simon Fristed Eskildsen, Mark Uldahl, Lasse Riis Østergaard, Anders Prisak
  • Patent number: 8027525
    Abstract: An image display method and an image display apparatus realize prevention of misdiagnosis which is caused by corruption of a part of at least one type of information including identification information, information on a series of images, and diagnosis-report information. The image display method and the image display apparatus perform an operation using a predetermined hash function on patient information ID1, examination information ID2, a series of images I1 to In acquired by an intra-subject information acquiring apparatus to generate and add hash data h. Thereafter, the image display method and the image display apparatus, when using case 15a-1, perform an operation using a predetermined hash function to generate new hash data, compare each piece of the hash data h already added and newly generated hash data, and determine whether two pieces of hash data match with each other.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: September 27, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventor: Yasuharu Oda
  • Patent number: 8027524
    Abstract: An image diagnosis support apparatus according to the invention comprises an adipose distribution data computing device which figures out adipose distribution data measured of a desired site in a subject from at least one medical image; an abnormal shadow candidate detecting device which detects an abnormal shadow candidate based on the figured-out adipose distribution data; and a display device which displays the abnormal shadow candidate detected by the abnormal shadow candidate detecting device and the medical image in a manner of being related to each other.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: September 27, 2011
    Assignee: Hitachi Medical Corporation
    Inventors: Toshihiro Ogura, Yoshihiro Goto
  • Patent number: 8023706
    Abstract: An automatic landmark determining device, includes a storage device for storing at least one anatomical sample image and at least one anatomical landmark, the at least one anatomical landmark corresponding to a characteristic location within the at least one anatomical sample image, The automatic landmark determining device also includes an input device for inputting an anatomical patient image, and a transformation device. The transformation device is configured to apply an image-adapting transformation to the at least one anatomical landmark, said image-adapting transformation corresponding to a transformation that converts the at least one anatomical sample image to the anatomical patient image.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: September 20, 2011
    Assignee: Brainlab AG
    Inventor: Jens Witte
  • Patent number: 8019135
    Abstract: A CT imaging apparatus (2) for providing a 2D representation of 3D image data representing a pulmonary vessel tree of a patient is disclosed. The apparatus comprises X-ray sources (6) and detectors (8) arranged in pairs for generating 3D image data representing a plurality of positions along lumen branches of the vessel tree and for receiving 3D image data representing at least one anatomical property at each of the locations. A processor (20) processes the 3D image data to provide 2D image data displayed on a display device (24) such that each lumen branch is represented by a line, and the color of each portion of a line representing one of the positions varies in dependence upon the anatomical property being measured.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: September 13, 2011
    Assignee: Koninklijke Philips Electronics N. V.
    Inventor: Marcel Johannes Quist
  • Patent number: 8014581
    Abstract: A method for segmenting a tubular structure includes providing a three-dimensional image containing the tubular structure, providing at least one seed point within the tubular structure, fitting an initial cylinder into the tubular structure at the seed point, adding cylinder segments to the initial cylinder in forward and backward directions within the three-dimensional image of the tubular structure by tracking the cylinder model over the tubular structure, modeling each cylinder segment using parameters to account for a three-dimensional orientation, a radius, a length and a curvature, describing an intensity image of the tubular structure using a second model to represent an edge and intensity distribution of the tubular structure, fitting the parameters as the cylinder segment is added to the intensity image, and outputting cylinder segments as a segmentation of the tube.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: September 6, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Zhen Qian, Matthias Wolf, Luca Bogoni
  • Patent number: 8005281
    Abstract: Systems, methods and apparatus are provided through which in some embodiments an image acquisition station transmits images that have been identified as having inadequate diagnostic quality to a computer system of an image quality consultant. The image quality consultant may develop recommendations on how to improve the quality, and the recommendations are communicated to appropriate personnel.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: August 23, 2011
    Assignee: General Electric Company
    Inventor: Mohamed Ali Hamadeh
  • Patent number: 7995819
    Abstract: Methods for displaying a location of a point of interest on a 3-D model of an anatomical region of a person are provided. In one exemplary embodiment, the method includes generating first and second 2-D images of the anatomical region utilizing an image acquisition system when an X-ray source of the image acquisition system is disposed at first and second positions, respectively, in a 3-D coordinate system of the image acquisition system. The method further includes selecting first and second points in the first and second 2-D images, respectively. The method further includes utilizing a triangulation technique utilizing the first and second points to determine a point of interest in a 3-D coordinate system of the 3-D model of the anatomical region.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 9, 2011
    Assignee: General Electric Company
    Inventors: Regis Vaillant, Elisabeth Soubelet, Jasbir Singh Sra
  • Patent number: 7992100
    Abstract: Systems and methods for generating images of respective patients from multi-dimensional medical image data sets include a processor circuit in communication with a display having a graphic user interface (GUI), the processor circuit configured to define at least one grouping of a subset of slices selected from slices in a medical data stack, then generate and display at least one slabbed view based on the at least one grouping of slices.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: August 2, 2011
    Assignee: Sectra AB
    Inventors: Claes Lundström, Per Anell, Fredrik Häll, Jonas Rehn, Regina Rosander
  • Patent number: 7991473
    Abstract: Systems and methods are provided for graphically configuring leads for a medical device. According to one aspect, the system generally comprises a medical device and a processing device, such as a programmer or computer, adapted to be in communication with the medical device. The medical device has at least one lead with at least one electrode in a configuration that can be changed using the processing device. The processing device provides a graphical display of the configuration, including a representative image of a proposed electrical signal to be applied by the medical device between the at least one electrode of the medical device and at least one other electrode before the medical device applies the electrical signal between the at least one electrode and the at least one other electrode. In one embodiment, the graphical display graphically represents the lead(s), the electrode(s), a pulse polarity, and a vector.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: August 2, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Par Lindh, James Kalgren, Rene H. Wentkowski, John Lockhart
  • Patent number: 7979212
    Abstract: A method and system for morphology based mitosis identification and classification of digital images. Luminance parameters such as intensity, etc. from a digital image of a biological sample (e.g., tissue cells) to which a chemical compound (e.g., a marker dye) has been applied are analyzed and corrected if necessary. Morphological parameters (e.g., size, elongation ratio, parallelism, boundary roughness, convex hull shape, etc.) from individual components within the biological sample are analyzed. A medical conclusion (e.g., type and count of mitotic cells) or a life science and biotechnology experiment conclusion is determined from the analyzed luminance and morphological parameters. The method and system may be used to develop applications for automatically obtaining a medical diagnosis (e.g., a carcinoma diagnosis).
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: July 12, 2011
    Assignee: Ventana Medical Systems, Inc.
    Inventors: Abhijeet S. Gholap, Gauri A. Gholap, Chiruvolu V. K. Rao, Sanford H. Barsky, Madhura Vipra, Suhas Hanmantrao Patil, Prithviraj Jadhav, Jayant Abhyankar
  • Patent number: 7974451
    Abstract: It is an object to provide a diffusion weighted image processing apparatus or the like which can correct a distortion of a diffusion weighted image requiring smaller endurance on a patient in a diffusion weighted image processing method for correcting distortion of a diffusion weighted image. The diffusion weighted image processing apparatus has a correcting device which relatively corrects, with mutual reference among two or more diffusion weighted images having different directions of gradient field pulses during imaging, distortions occurring in the directions of the gradient field pulses during the imaging of the diffusion weighted images, the distortion being caused by the gradient field pulse of the diffusion weighted image.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: July 5, 2011
    Assignee: Ziosoft, Inc.
    Inventor: Kazuhiko Matsumoto
  • Patent number: 7974452
    Abstract: In a container of a cell culture device, a light source and a camera are arranged on both sides of an incubator, and the camera or incubator can be moved in relation to each other. An image of cells in the incubator is captured with a given focus. The medium, image density, and noise component of images captured while varying the focus of the camera have substantially similar pixel values. Consequently, by subjecting the data on the images captured with such different focuses to differential processing, only the cell portion can be extracted without being influenced by the color variation of the medium, the variation of the amount of light, the difference in brightness between the central and peripheral areas of the image, and the noise.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: July 5, 2011
    Assignee: Kaneka Corporation
    Inventors: Yoshihiro Komori, Tsutomu Suzuki
  • Patent number: 7970190
    Abstract: A method for determining a location of a frontal pelvic plane of a pelvic bone includes ascertaining a position of a pubic point of the pelvic bone; generating at least one x-ray recording of the pelvic bone; ascertaining a straight line in the at least one x-ray recording that passes through the pubic point and a contour of the pelvic bone; and ascertaining the location of the frontal pelvic plane from a rear-projection of the straight line.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: June 28, 2011
    Assignee: Brainlab AG
    Inventors: Wolfgang Steinle, Rainer Lachner, Stefan Vilsmeier
  • Patent number: 7953612
    Abstract: Systems and methods of creating, managing, and using a database comprising surgical data may involve receiving input signals from a plurality of surgical data sources, the input signals being representative of surgical data associated with a plurality of patients, storing the surgical data in the database, and sending one or more output signals to one or more authorized users in response to one or more queries, the output signals being representative of one or more portions of the surgical data. Among other uses, the systems and methods may be used to improve the performance of surgical procedures, rate surgeons, train surgeons, and establish insurance rates for surgeons and patients.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: May 31, 2011
    Assignee: Ecomglobalmedical Research & Development, Inc
    Inventors: Nicholas Palmese, Thomas T. Jeneby, David H. Bornstein
  • Patent number: 7941000
    Abstract: An image of a physical object is produced by receiving a plurality of raw images, dividing the plurality of raw images into a first subset of primary images and a second subset of secondary images according to a predetermined criterion. From the first subset of primary images an intermediate image is determined while from the second subset of secondary images a mask image is determined. Afterwards a registration of the intermediate image and the mask image is performed by using direct registration of predetermined features present in the intermediate image and the mask image. A fused image of the physical object is generated out of the mask image and the intermediate image.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: May 10, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Peter Maria Johannes Rongen, Nicolaas Hylke Bakker, Herman Stegehuis, Peter Willem van den Houten, Raoul Florent
  • Patent number: 7940977
    Abstract: A method of identifying a calcium and/or a soft plaque deposit in a blood vessel using imaging data of the blood vessel is provided. A first threshold is applied to a slice of three-dimensional imaging data of a blood vessel to define voxels above the first threshold. A maximum intensity of the blood vessel is identified from the defined voxels. A distance from the identified maximum intensity to a center of the blood vessel is calculated and is compared with a distance threshold. If the calculated distance is greater than the distance threshold, a calcium deposit is identified. A second threshold is applied to the slice to define voxels below the second threshold. If a calcium deposit is identified or if the defined voxels below the threshold have a half-moon shape, a soft plaque deposit is identified.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: May 10, 2011
    Assignee: Rcadia Medical Imaging Ltd.
    Inventors: Grigory Begelman, Roman Goldenberg, Shai Levanon, Shay Ohayon, Eugene Walach
  • Patent number: 7940971
    Abstract: A method and system for extracting motion-based layers from fluoroscopic image sequences are disclosed. Portions of multiple objects, such as anatomical structures, are detected in the fluoroscopic images. Motion of the objects is estimated between the images is the sequence of fluoroscopic images. The images in the fluoroscopic image sequence are then divided into layers based on the estimated motion. In a particular implementation, the coronary vessel tree and the diaphragm can be extracted in separate motion layers from coronary angiograph fluoroscopic image sequence.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: May 10, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Wei Zhang, Adrian Barbu, Simone Prummer, Martin Ostermeier, Chandan K. Reddy, Dorin Comaniciu
  • Patent number: 7931593
    Abstract: A method and system for managing at least one animal is disclosed. The method can include imaging, such as ultrasound imaging, a lung of a live animal, such as a ruminant animal or bovine animal. The imaging can be performed to determine a degree of respiratory damage from past respiratory illness. After imaging, information regarding respiratory damage can be used to select at least one aspect of the treatment, care or disposition of the animal. For example, the information can be used to select the amount or type of feed provided to the animal at a feedlot. The information also can be used to select how long the animal should be housed at the feedlot prior to slaughter. If an animal is diagnosed with a respiratory illness, information about its degree of respiratory damage from past respiratory illness also can be used to select the appropriate medical treatment or lack of treatment.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: April 26, 2011
    Assignee: Micro Beef Technologies, Ltd.
    Inventors: John T. Haynes, William C. Pratt
  • Patent number: 7912267
    Abstract: The present invention is a virtual-slide specimen image acquisition apparatus that captures images by dividing a specimen into a plurality of sections, having a conveying device in which a plurality of specimens can be arranged and that conveys the plurality of the arranged specimens in a first direction by a distance corresponding to the length of a side along the first direction in one of the divided sections and at first time intervals and an image capturing device that has an image capturing portion for capturing images of the specimens magnified at a predetermined magnification and that scans the specimens conveyed to a predetermined position in a second direction, by a predetermined length at second time intervals, such that the image capturing portion captures images of all of the sections that are positioned identically in the first direction and that are positioned differently in the second direction perpendicular to the first direction.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 22, 2011
    Assignee: Olympus Corporation
    Inventors: Yoshihiro Kawano, Mitsumori Hayashida, Keiji Kimura, Iwao Kanamori
  • Patent number: 7912265
    Abstract: A computer-implemented system and method of intra-oral analysis for measuring plaque removal is disclosed. The system includes hardware for real-time image acquisition and software to store the acquired images on a patient-by-patient basis. The system implements algorithms to segment teeth of interest from surrounding gum, and uses a real-time image-based morphing procedure to automatically overlay a grid onto each segmented tooth. Pattern recognition methods are used to classify plaque from surrounding gum and enamel, while ignoring glare effects due to the reflection of camera light and ambient light from enamel regions. The system integrates these components into a single software suite with an easy-to-use graphical user interface (GUI) that allows users to do an end-to-end run of a patient record, including tooth segmentation of all teeth, grid morphing of each segmented tooth, and plaque classification of each tooth image.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: March 22, 2011
    Assignee: Colgate-Palmolive Company
    Inventors: James Herbert Kemp, Ashit Talukder, James Lambert, Raymond Lam
  • Patent number: 7912529
    Abstract: A low-density sensor panel assembly system is provided for use with remote marker assemblies that generates a marker signal and for use with a radiation therapy source that generates a radiation beam during radiation therapy. The system includes a sensor array having a layer of sensor coils arranged in a selected pattern and configured to receive the marker signal from the remote marker. A support panel is connected to the sensor array and retains each of the sensor coils in a substantially fixed and unmoving position relative to the other sensor coils. The sensor panel and sensor array define a low-density panel structure configured to dwell in the radiation beam during the radiation therapy.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: March 22, 2011
    Assignee: Calypso Medical Technologies, Inc.
    Inventors: Matthew A. Herron, Bryan White, Jon H. LeFors, Sam Truslow
  • Patent number: 7912262
    Abstract: Prior to an intervention, a 3D rotational scan is acquired (at block 10) in respect of a body volume and reconstructed. In addition, three-dimensional image data in respect of the body volume is acquired (at block 12) using another modality, such as computerised tomography (CT) or magnetic resonance (MR), reconstructed, and prepared for visualisation. During the actual intervention, live two-dimensional fluoroscopic images are acquired (at block 14), using the imaging system employed to acquire the 3D rotational scan, and processed for visualisation.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: March 22, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jan Timmer, Robert Johannes Frederik Homan, Pieter Maria Mielekamp
  • Patent number: 7881512
    Abstract: At least one embodiment of the present invention relates to a method and/or an apparatus for determining the spatial profile of a vessel axis in volume data records for medical imaging, in particular for producing slice images of vessels which are obtained by curved planar reformation CPR and can be rotated freely. In at least one embodiment of the method, the vessel axis is marked interactively on the displayed MPR or MIP images by marking points using a two-dimensional coordinate system. Depth information is derived automatically for each marking point from the known position of the respective image in the stack or using the known calculation procedure for MIP images, and the marking points are extended in dimension on the basis of the depth information in order to obtain extended marking points using a three-dimensional coordinate system.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 1, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Christian Asbeck
  • Patent number: 7876934
    Abstract: A method for segmenting an anatomical structure of interest within an image is disclosed. The anatomical structure of interest is compared to a database of images of like anatomical structures. Those database images of like anatomical structures that are similar to the anatomical structure of interest are identified. The identified database images are used to detect the anatomical structure of interest in the image. The identified database images are also used to determine the shape of the anatomical structure of interest. The anatomical structure of interest is segmented from the image.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: January 25, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Bogdan Georgescu, Xiang Zhou, Dorin Comaniciu, R. Bharat Rao, Alok Gupta
  • Patent number: 7876945
    Abstract: A method for processing slice images wherein information indicative of at least one quantitative measure is formed from image sets. The image sets are acquired from at least two imaging directions. At least two of the image sets relating to the imaging directions are used for forming the information. A method for reducing misalignments, a module, a system and a computer program product for implementing the method.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: January 25, 2011
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventor: Jyrki Lötjönen
  • Patent number: 7876944
    Abstract: The invention provides improvements in reconstructive imaging of the type in which a volume is reconstructed from a series of measured projection images (or other two-dimensional representations) by utilizing the capabilities of graphics processing units (GPUs). In one aspect, the invention configures a GPU to reconstruct a volume by initializing an estimated density distribution of that volume to arbitrary values in a three-dimensional voxel-based matrix and, then, determining the actual density distribution iteratively by, for each of the measured projections, (a) forward-projecting the estimated volume computationally and comparing the forward-projection with the measured projection, (b) generating a correction term for each pixel in the forward-projection based on that comparison, and (c) back-projecting the correction term for each pixel in the forward-projection onto all voxels of the volume that were mapped into that pixel in the forward-projection.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: January 25, 2011
    Assignee: PME IP Australia Pty Ltd.
    Inventors: Detlev Stalling, Malte Westerhoff, Martin Seebass, Ralf Kubis
  • Patent number: 7853089
    Abstract: An automated method for analyzing whether all cancerous or abnormal tissue has been removed as a result of surgical resection is disclosed. A number of tissue section slides are prepared representing all or a relatively large percentage of the tissue sample, and high-resolution digital microscopic images are formed of the sections. A clustering algorithm forms an image showing the healthy tissue margins, such representation being stored in a file of significantly smaller size than the original photograph. These two-dimensional image files may be formed into a three-dimensional image of the entire resected tissue, thereby improving the accuracy and ease by which a pathologist may determine if further surgery or radiation therapy, for example, are indicated.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: December 14, 2010
    Assignee: The Board of Trustees of the University of Arkansas
    Inventors: Gal Shafirstein, Xiaowei Xu, Mutlu Mete
  • Patent number: 7844328
    Abstract: A liquid injector displays a plotting chart image whose vertical axis represents liquid injection rates and horizontal axis represents liquid injection times. When an injection graph which represents a liquid injection rate at each quantity of the liquid to be injected is entered into the displayed plotting chart image, the liquid injector controls operation of an injection performing means according to the injection graph and a time which has elapsed from the start of injection of the liquid. The rate at which the liquid is injected can thus be changed as desired with time according to the injection graph.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: November 30, 2010
    Assignee: Nemoto Kyorindo Co., Ltd.
    Inventor: Shigeru Nemoto
  • Patent number: 7835500
    Abstract: A method for registering 2-D radiographic images to 3-D volume studies includes generating digitally reconstructed radiographs (DRRs) from a 3-D volume study. The DRR's are used as reference images to register a patient's position during image-guided radiosurgery. Stereoscopic X-rays of the patient are acquired during treatment, and multi-phase registration is used to register the DRRs with the X-ray images in two or more projections.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: November 16, 2010
    Assignee: Accuray Incorporated
    Inventors: Dongshan Fu, Gopinath Kuduvalli
  • Patent number: 7831078
    Abstract: A method for segmenting intravascular images includes acquiring a series of digitized images acquired from inside a vessel, each said image comprising a plurality of intensities corresponding to a 2-dimensional grid of pixels, providing a precomputed set of shapes for modeling contours of vessel wall boundaries, wherein a contour can be expressed as a sum of a mean shape and a inner product of shape modes and shape weights, initializing a boundary contour for one of said set of images, initializing said shape weights by projecting a contour into said shape modes, updating said shape weights from differential equations of said shape weights, and computing a contour by summing said mean shape and said inner product of shape modes and updated shape weights.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: November 9, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Gozde Unal, Susann Bucher, Gregory G. Slabaugh, Tong Fang
  • Patent number: 7831081
    Abstract: A system and method of analysis for a medical image are described. A medical image is received and analyzed, and an initial border of a region within the medical image is determined based on the analysis of the medical image. A user input is received indicating one or more control points, where each of the one or more control points is located inside or outside of the initial border. A modified border of the region is determined based on the analysis and the user input, the modified border passing through the one or more control points.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: November 9, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Wenguang Li
  • Patent number: 7826651
    Abstract: A method for checking an x-ray diagnostic apparatus is provided. Fluoroscopic series of x-ray images of a technical phantom are digitally acquired and stored. Difference between a dynamic image and a background image is calculated. A measuring field is predicted. Priori information about the shape of a clinically relevant object is determined. Hough transformation on a gray value image corresponding to the difference is applied. Contrast of the object from the Hough-transformed gray value image is determined. A square of the determined contrast is calculated. A noise variance is calculated by determining a sum of a noise variance of a homogenous image region and a variance of the background image. A contrast-to-noise ratio of the determined contrast and the calculated noise variance is determined. A square of the contrast-to-noise ratio is dynamically averaged. A Clinical Relevant Fluoroscopy Performance index for the x-ray diagnostic apparatus is determined.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: November 2, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Böhm, Peter Durlak, Volker Heer, Martin Kolarjk
  • Patent number: 7822250
    Abstract: An mmode imaging method and apparatus for an ultrasonic diagnostic device is provided to increase the continuity of displayed mmode images. An mmode imaging method performed by an ultrasonic diagnosis device selects sample points on frames of bmode images, converts bmode data of the sample points obtained from the frames of bmode images into converted mmode data, produces interpolated mmode data based on the echo data of corresponding sample points on at least two different frames, and images at least a portion of the mmode data in time sequence.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: October 26, 2010
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Bin Yao, Jian Dong, Yong Li
  • Patent number: 7804992
    Abstract: Methods and systems for computer assisted detection of arterial calcification, for example in the abdominal artery, by using measurements such as those conventionally taken with a dual x-ray energy bone densitometers at single energy or dual energy, and for using the calcification assessment either alone or with other information to assess and report a risk of a cardiovascular event.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: September 28, 2010
    Assignee: Hologic, Inc.
    Inventors: Kevin Wilson, Brad Herrington
  • Patent number: 7801347
    Abstract: Methods and systems for computer assisted detection of arterial calcification, for example in the abdominal artery, by using measurements such as those conventionally taken with a dual x-ray energy bone densitometers at single energy or dual energy, or by a CT/QCT device for a localization of scout view, and for using the calcification assessment either alone or with other information to assess and report a risk of a cardiovascular event, alone or together with other information such as BMD and vertebral fracture risk.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: September 21, 2010
    Assignee: Hologic, Inc.
    Inventors: Kevin Wilson, Brad Herrington
  • Patent number: 7796792
    Abstract: A method of determining disturbing signal frequencies in a signal representation of radiation image originating from the presence of an anti-scatter grid during image acquisition, the signal representation being generated by an image read out and digitizing process, whereby the digitizing of an image of a simulated anti-scatter grid is simulated and the signal resulting from this simulation is evaluated to determine the disturbing frequencies.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: September 14, 2010
    Assignee: Agfa HealthCare, N.V.
    Inventor: Gert Behiels
  • Patent number: 7796796
    Abstract: A controller of an image-generating medical engineering assembly receives a selection of an image valuation method from a user. It subsequently automatically adjusts selection-specific, positioning-independent operating parameters of the recording arrangement and or provides the user with instructions for adjusting the positioning-independent operating parameters. In response to a user's start input the controller captures by means of a recording arrangement of the image-generating medical engineering assembly a sequence of successive two-dimensional images of an iteratively moving object being examined and capturing instants thereof as well as a phase signal of the object being examined and archives the sequence of images, capturing instants and the phase signal.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: September 14, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Estelle Camus, Martin Kleen, Thomas Redel
  • Patent number: 7787669
    Abstract: In order to reduce an x-ray dose applied to a patient, it is necessary to know the dose absorbed by the patient. According to the present invention, there is provided a method of determining a local patient dose applied to a patient where after the reconstruction of the scan data into a diagnostic image, the scan data are backprojected into the patient volume, using the attenuation information of the diagnostic image to form a spatially varying photon fluence map. In parallel, the diagnostic image is segmented into anatomical structures to which dose-weighting factors are assigned. The locally absorbed dose is then calculated on the basis of the fluence map and the corresponding dose weights.
    Type: Grant
    Filed: January 19, 2004
    Date of Patent: August 31, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Henrik Botterweck, Lothar Spies
  • Patent number: 7783364
    Abstract: Systems and methods are provided for graphically configuring leads for a medical device. According to one aspect, the system generally comprises a medical device and a processing device, such as a programmer or computer, adapted to be in communication with the medical device. The medical device has at least one lead with at least one electrode in a configuration that can be changed using the processing device. The processing device provides a graphical display of the configuration, including a representative image of a proposed electrical signal to be applied by the medical device between the at least one electrode of the medical device and at least one other electrode before the medical device applies the electrical signal between the at least one electrode and the at least one other electrode. In one embodiment, the graphical display graphically represents the lead(s), the electrode(s), a pulse polarity, and a vector.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: August 24, 2010
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Par Lindh, James Kalgren, Rene H. Wentkowski, John Lockhart
  • Patent number: 7775978
    Abstract: Without using ECG input signals or processor intensive correlation, cyclical timing is determined from ultrasound data. Cyclical timing includes determining the time of end diastole, time of end systole or heart rate. The ultrasound data is reduced, such as by projecting each frame of data onto two axes. For projection, data is summed along each dimension. The location associated with the maximum variance through the sequence is identified from the projected data. The ultrasound data associated with the location is used to identify cycle timing information, such as to provide a waveform representing the cycle. Lines from different frames of data in the sequence are also used to generate an image. The image shows cycle timing information.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: August 17, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Desikachari Nadadur, Anil V. Relkuntwar, Mervin Mencias Smith-Casem, Timothy Thigpen, Carol M. Lowery
  • Patent number: 7760927
    Abstract: A method and system for automatic digital image based tissue independent simultaneous nucleus, cytoplasm and membrane quantitation. Plural types of pixels comprising cell components including at least cell cytoplasm and cell membranes from a biological tissue sample to which a chemical compound has been applied and has been processed to remove background pixels and pixels including counterstained components are simultaneously identified. The identified cell components pixels are automatically classified to determine a medical conclusion such as a human breast cancer, a human prostrate cancer or an animal cancer.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: July 20, 2010
    Assignee: BioImagene, Inc.
    Inventors: Abhijeet S. Gholap, Gauri A. Gholap, Aparna Joshi, Amitabha Basu, Chiruvolu V. K. Rao, Prithviraj Jadhav
  • Patent number: 7756304
    Abstract: A medical diagnostic ultrasonic imaging system acquires image data for at least two frames at each of multiple positions, each frame identified with a respective phase of a physiological cycle. A multiphase 3-D or extended field of view data set is constructed from the image data. Then a plurality of images are generated from the multiphase data set. Each image is associated with a respective phase of the physiological cycle, and these images are displayed in sequence to a user.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: July 13, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: John A. Hossack, Linyong Pang, Thilaka S. Sumanaweera
  • Patent number: 7756305
    Abstract: Methods and apparatus are described for enhancing operator independent image cytometry. Aspects of the invention include enhanced tissue surface tracking which can detect both tissue surfaces. The surface detection can aid cytometry, such as by reducing the amount of image data to be stored. Segmentation is described for 3D images in which 3D least squares filtering is applied to increase contrast for simplifying the delineation of objects from backgrounds. A method of creating 3D FIR image filters based on ideal objects is also described. A data structure is defined by which 3D object data may be organized for image representations if samples. Methods of performing remote segmentation processing are also described toward centralizing the necessary processor power and applications and reducing the burden on researchers and clinicians.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: July 13, 2010
    Assignee: The Regents of the University of California
    Inventor: Jeffrey H. Price
  • Patent number: 7747051
    Abstract: A method and system for differentiating a vessel and a nodule within an image. The method and system first identifies a complex object in the image and then identifies portions of the complex object as a vessel or a nodule using a distance transform based method. A simplex object is identified in the image and the simplex object is identified as a vessel or a nodule using compactness values. Complex objects are analyzed using features in a distance transform map to identify a) nodule parts and b) vessels that are attached to or pass through the nodule parts.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: June 29, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Li Zhang
  • Patent number: 7742798
    Abstract: In a method and magnetic resonance tomography apparatus for evaluation of a cinematographic image series of the heart during a heart cycle, wherein the image series is acquired with an acquisition unit, and in the image series healthy heart muscle tissue is presented as differentiable from damaged heart muscle tissue, at least two individual images of the image series are processed in a data processing unit, with at least one region of the healthy heart muscle and/or of the damaged heart muscle being detected in each of the individual images by a pattern recognition algorithm, and at least one descriptive quantity is measured that describes a geometric property of the region that has been detected by the pattern recognition algorithm, a dynamic change of the descriptive quantity is detected, and medically-relevant information that is acquired from the dynamic change of the descriptive quantity is made available as an output.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: June 22, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Assmann, Renate Jerecic