With Triggering Or Gating Device Patents (Class 600/413)
  • Patent number: 11379994
    Abstract: The disclosure relates to a method and an imaging device for generating a motion-compensated image of a target object. The disclosure further relates to a corresponding computer program and a computer-readable storage medium. In the method, a reference image is generated from projection images of a target object. Furthermore, a motion field which characterizes a motion of the target object shown is determined iteratively. In each case, after a predetermined number of iterative acts, the existing reference image is replaced by a provisional motion-compensated image, which is then used for the further iteration. The initial reference image is generated without using a synchronization or gating-signal that characterizes a motion of the target object.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: July 5, 2022
    Assignee: Siemens Healthcare GmbH
    Inventors: Günter Lauritsch, Christopher Rohkohl
  • Patent number: 11360179
    Abstract: Systems and methods for estimating magnetic susceptibility of a patient through continuous motion in an MRI scanner are provided herein. In one or more examples, during the collection of data, the patient can be instructed to move their head or other part of the body in a continuous manner and for a fixed duration of time. During the fixed duration of time, magnitude a data from the RF signal can be received by one or more RF coils can be collected. The received and undersampled magnitude data can be converted to phase data which can then be converted to magnetic susceptibility. Thus magnetic susceptibility can be determined while allowing for continuous motion during the MRI scan, which can be more comfortable and feasible for the patient in contrast to techniques that require the patient to hold their body at a particular orientation in the scanner for a fixed duration of time.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: June 14, 2022
    Assignee: The MITRE Corporation
    Inventors: Joseph Dagher, Ben Berman
  • Patent number: 11255939
    Abstract: A magnetic resonance imaging (MRI) apparatus performs automatic positioning with high accuracy within a short time with respect to tissues having a complicated anatomic structure. First measurement of scout imaging is executed before main imaging for acquiring a diagnosis image, and one-dimensional or two-dimensional measurement data is acquired. The right and left of a subject is determined by using the measurement data acquired in the first measurement. A cross-section position in second measurement of the scout imaging is calculated by using a determination result in the right and left determination and the measurement data acquired in the first measurement, the second measurement at the cross-section position is executed, and two-dimensional measurement data is acquired. A cross-section position in the main imaging is calculated by using the two-dimensional measurement data acquired in the second measurement.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: February 22, 2022
    Assignee: FUJIFILM HEALTHCARE CORPORATION
    Inventors: Suguru Yokosawa, Toru Shirai, Hisako Nagao, Chikako Moriwake, Binrong Wu
  • Patent number: 11187769
    Abstract: The disclosure relates to a computer implemented method for magnetic resonance imaging. The method includes: receiving at least a first and a second subset of k-space data as radio frequency signals emitted from excited hydrogen atoms of a subject; sampling the first and second subset of k-space data; choosing the first subset of k-space data as a base subset of k-space data; estimating motion parameters of the second subset of k-space data against the base subset of k-space data; and correcting the second subset of k-space data based on the estimated motion parameters of the second subset of k-space data. The motion parameters of the second subset of k-space data are parameters of a non-linear motion estimating function representing a motion of the subject between receiving the first subset of k-space data and receiving the second subset of k-space data.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: November 30, 2021
    Assignees: THE GENERAL HOSPITAL CORPORATION, SIEMENS HEALTHCARE GMBH
    Inventors: Daniel Nicolas Splitthoff, Julian Hossbach, Josef Pfeuffer, Stephen Farman Cauley, Melissa Haskell
  • Patent number: 11119176
    Abstract: A method for determining time periods of minimal motion of a physiologic organ includes monitoring a physiologic triggering signal associated with a patient and using an MRI cine pulse sequence to acquire a temporal series of projections of the organ. The temporal series is analyzed to determine times relative to a physiologic triggering signal during which motion of the organ is below a threshold. Motion is assessed by first creating a signal intensity versus time curve of one pixel or an average of multiple pixels included in the temporal series. A noise filter and normalization is applied to the signal intensity versus time curve to yield a filtered and normalized time curve. The temporal derivative of the filtered and normalized time curve is determined. The absolute value of the motion-analog function is evaluated for being smaller than the threshold to determine the times where motion is below the threshold.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: September 14, 2021
    Assignee: Siemens Healthcare GmbH
    Inventor: Wolfgang G. Rehwald
  • Patent number: 11092460
    Abstract: According to one embodiment, a sensor control support apparatus includes: a sensor selector configured to, based on measurement data of a plurality of sensors for at least one monitoring target and state data indicating an state of the at least one monitoring target, select a sensor to be used for state prediction of the monitoring target from among the plurality of sensors; and a sensor controller configured to control the plurality of sensors based on a selection result of the sensor selector.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: August 17, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Myungsook Ko, Arika Fukushima
  • Patent number: 11023785
    Abstract: A system, method and program product for implementing a sparse sampling strategy for acquiring MRI data. A method includes: collecting and labeling a training dataset of MRI scans for a predetermined diagnostic; selecting a sampling shape and associated parameter values; sampling each MRI scan in the training data set using the sampling shape and associated parameter values to generate a set of sparse samples; training a neural network using the sparse samples and assigning an accuracy to a resulting trained neural network; and adjusting the associated parameter values, and repeating the sampling and training until optimized parameter values are established.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: June 1, 2021
    Assignee: International Business Machines Corporation
    Inventors: Uri Kartoun, Fang Lu, Meenal Pore
  • Patent number: 10962620
    Abstract: In a method and magnetic resonance (MR) apparatus for acquisition of MR data from a patient in a breath-hold examination an instruction is provided to the patient to hold his/her breath, and the acquisition of MR measurement data is started. A breathing curve is recorded at least after the output of the instruction to the patient. A next-breath time is determined based on the recorded breathing curve. At least one final MR measurement data set is created based on the acquired MR measurement data, depending on the detected next-breath time. Image data are reconstructed from the at least one final MR measurement data set.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 30, 2021
    Assignee: Siemens Healthcare GmbH
    Inventor: Mario Zeller
  • Patent number: 10957443
    Abstract: In a method and medical imaging apparatus for providing a range of potential parameters that can be used for recording a future medical image data set, an algorithm is provided to a computer for performing a quantitative analysis of the future medical image data set. The computer is also provided with patient information specifying a status of a patient. In order to reduce a probability of an invalid quantitative analysis, the range of potential parameters is set in the computer by performing the quantitative analysis depending on the patient information.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 23, 2021
    Assignee: Siemens Healthcare GmbH
    Inventor: Andreas Greiser
  • Patent number: 10952695
    Abstract: A medical apparatus according to an embodiment includes an acquirer and a selector. The acquirer is configured to acquire fluoroscopic images of an object captured in time series. The selector is configured to select reference images which include fluoroscopic images corresponding to a maximum exhalation position and a maximum inhalation position of the object from the plurality of fluoroscopic images acquired by the acquirer.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 23, 2021
    Assignee: Toshiba Energy Systems & Solutions Corporation
    Inventors: Shinichiro Mori, Keiko Okaya, Ryusuke Hirai, Koki Yanagawa, Fumi Maruyama
  • Patent number: 10957013
    Abstract: A method of synthesizing medical images includes acquiring image data of an object; generating first medical image frames of the object based on the image data; selecting, from among the first medical image frames, second medical image frames corresponding to points of time that have the same electrocardiogram (ECG) signal information of the object; generating a panoramic image by synthesizing the second medical image frames; and displaying the panoramic image on a display.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: March 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-woo Yim, Ho-kyung Kang, Ki-won Sohn
  • Patent number: 10901060
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes sequence control circuitry and processing circuitry. The sequence control circuitry performs first data acquisition in a full k-space and performs a plurality of second data acquisition in partial k-spaces, each of the partial k-spaces being smaller than the entirety of the full k-space. The processing circuitry generates an image, based on data acquired from the first data acquisition and a plurality of pieces of data acquired from the plurality of second data acquisition.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: January 26, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Mitsue Miyazaki, Satoshi Sugiura, Tsutomu Hoshino, Xiangzhi Zhou
  • Patent number: 10871537
    Abstract: Systems and methods for suppressing background in time-of-flight (TOF) magnetic resonance angiography (MRA) are disclosed. An exemplary method includes obtaining a first TOF image through a high-resolution acquisition with a saturation band on one side of an imaging slab, obtaining a second TOF image through a low-resolution acquisition with two saturation bands on both sides of the imaging slab, and subtracting the second TOF image from the first TOF image to obtaining a subtraction TOF image. Post processing such as maximum intensity projection (MIP) is performed on the subtraction TOF image.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: December 22, 2020
    Assignee: GE Precision Healthcare LLC
    Inventors: Jia Guo, Yongchuan Lai, Pengfei Lu, Xuan Liu
  • Patent number: 10835179
    Abstract: Disclosed is an audio-headset for acquisition of a bio-signal from a subject, including a first earpiece; a second earpiece; an arch connecting the first earpiece and the second earpiece; the arch including a hub (4); wherein the arch, the first earpiece and the second earpiece are configured so that the earpieces are placed over a subject's ears when the audio headset is worn by the subject; and at least one posterior branch (1) having a first end extending from the hub and a second free end; the at least one posterior branch (1) including a concave surface with a radius of curvature, a collapsed state when the headset is not worn by the subject and an expanded state when the headset is worn by the subject.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 17, 2020
    Assignee: MYBRAIN TECHNOLOGIES
    Inventors: Yohan Attal, Thibaud Dumas
  • Patent number: 10806370
    Abstract: A system and method for detecting, timing, and adapting to patient motion during an MR scan includes using the inconsistencies between calculated images from different coil-array elements to detect the presence of patient motion and, together with the k-space scan-order information, determine the timing of the motion during the scan. Once the timing is known, various actions may be taken, including restarting the scan, reacquiring those portions of k-space acquired before the movement, or correcting for the motion using the existing data and reconstructing a motion-corrected image from the data.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 20, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Rafael Shmuel Brada, Christopher Judson Hardy, Sangtae Ahn, Isabelle Heukensfeldt Jansen, Itzik Malkiel, Michael Rotman, Ron Wein
  • Patent number: 10753999
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a processor and a memory. The memory stores processor-executable instructions that cause the processor to perform an application region scan for acquiring data on an area covering a diaphragm in order to position an application region of a motion detection pulse and a multi-slice scan for acquiring first multi-slice data on an area covering a heart; and acquire a slice image of the heart that is positioned using the first multi-slice data, with application of the motion detection pulse. In acquiring the slice image, when breathing motion of a subject is continuously out of an allowable range for a given period, the processor corrects a position of the application region by calculation using the second multi-slice data acquired by performing the multi-slice scan again and a positional relationship obtained by the application region scan and the multi-slice scan.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: August 25, 2020
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventor: Kiyomi Ooshima
  • Patent number: 10746834
    Abstract: MR image data corresponds to physiological signals. First image data is acquired by the magnetic resonance tomograph. Physiological signal data is acquired, and the first image data is provided with first meta data and the physiological signal data with second meta data. The meta data enables a temporal association to the instant of acquisition and the first image data. The physiological signal data is transmitted to an evaluation computer.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: August 18, 2020
    Assignee: Siemens Healthcare GmbH
    Inventor: Thomas Beck
  • Patent number: 10736594
    Abstract: In accordance with the present disclosure, the present technique finds a diagnostic scan timing for a non-static object (e.g., a heart or other dynamic object undergoing motion) from raw scan data, as opposed to reconstructed image data. To find the scan timing, a monitoring scan of a patient's heart is performed. In the monitoring scan, the patient dose may be limited or minimized. As the projection data is acquired during such a monitoring scan, the projection data may be subjected to sinogram analysis in a concurrent or real-time manner to determine when to start (or trigger) the diagnostic scan.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: August 11, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Bruno Kristiaan Bernard De Man, Eri Haneda, Jed Douglas Pack, Bernhard Erich Hermann Claus
  • Patent number: 10722138
    Abstract: Electron paramagnetic resonance (EPR) systems and methods for transcutaneous oxygen monitoring (TCOM) and subcutaneous oxygen monitoring (SCOM) are provided herein. Optionally, the EPR systems provided herein can be portable and/or handheld to facilitate EPR oximetry in clinical environments.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: July 28, 2020
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Aharon Blank, Periannan Kuppusamy, Ahmad Rizwan
  • Patent number: 10716519
    Abstract: The present disclosure provides methods for in-vivo assessment of the location and extent of blood flow stasis regions inside a cardiac chamber or blood vessel and systems for performing the methods. The disclosure provides methods for assessing risk of intracardiac or intravascular thrombus or of embolism originating in a cardiac chamber or vessel, and methods for assessing the need for and/or optimization of cardiac resynchronization therapy.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: July 21, 2020
    Assignees: The Regents of the University of California, Fundación para la Investigación Biomédica del Hospital Gregorio Marañó
    Inventors: Juan Carlos del Alamo de Pedro, Lorenzo Rossini, Andrew Kahn, Javier Bermejo, Pablo Martínez-Legazpi, Raquel Yotti Alvarez
  • Patent number: 10719935
    Abstract: An image processing apparatus is disclosed. The image processing apparatus of the present invention comprises: an image receiving unit for receiving a first image and a second image of the same object taken at different times; a processor for obtaining transformation information by registering the first image on the basis of the second image, obtaining a first segment image corresponding to an area of the object from the first image, and generating a second segment image corresponding to an area of the object of the second image by transforming the obtained first segment image according to the transformation information; and an output unit for outputting the second segment image.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 21, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-sung Lee, Gye-hyun Kim, Woo-hyun Nam, Yong-sup Park, Ji-hun Oh, Yun-sub Jung
  • Patent number: 10674987
    Abstract: A method of imaging motion of an organ that changes volume in a patient including the steps of monitoring change in volume of the organ, and recording multiple in vivo images of the organ, wherein the change of organ volume between the images is constant or of some other predetermined value.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: June 9, 2020
    Assignee: 4Dx Limited
    Inventor: Andreas Fouras
  • Patent number: 10638999
    Abstract: Controlling a multi-device module includes a physiological sensor configured to sense physiological characteristics of a subject and generate a signal indicative of an instantaneous physiological state. A first device is configured to generate a first signal indicative of an operating state of the first device. A second device is configured to generate a second signal indicative of an operating state of the second device. A remote-control device includes a repository for storing computer executable files aggregated from a plurality of changing private networks. The remote-control device includes an electronic record (ER) client to make a wireless connection with each of the private networks and to query ER database associated with the private networks for electronic records residing within the private networks.
    Type: Grant
    Filed: February 11, 2017
    Date of Patent: May 5, 2020
    Assignee: Netspective Communications LLC
    Inventor: Shahid N. Shah
  • Patent number: 10614568
    Abstract: A dynamic analysis system includes a diagnostic console which calculates at least one index value representing variation in a target portion of a human body from at least one dynamic image acquired by performing radiographic imaging to a subject containing the target portion, and evaluates flexibility of the target portion based on the calculated index value.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: April 7, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Sho Noji, Koichi Fujiwara, Hitoshi Futamura, Akinori Tsunomori
  • Patent number: 10605880
    Abstract: A method for performing 3D body imaging includes performing a 3D MRI acquisition of a patient to acquire k-space data and dividing the k-space data into k-space data bins. Each bin includes a portion of the k-space data corresponding to a distinct breathing phase. 3D image sets are reconstructed from the bins, with each 3D image set corresponding to a distinct k-space data bin. For each bin other than a selected reference bin, forward and inverse transforms are calculated between the 3D image set corresponding to the bin and the 3D image set corresponding to the reference bin. Then, a motion corrected and averaged image is generated for each bin by (a) aligning the 3D image set from each other bin to the 3D image set corresponding to the bin using the transforms, and (b) averaging the aligned 3D image sets to yield the motion corrected and averaged image.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: March 31, 2020
    Assignees: Siemens Healthcare GmbH, Cedars-Sinai Medical Center
    Inventors: Xiaoming Bi, Jianing Pang, Zhaoyang Fan, Matthias Fenchel, Gerhard Laub, Debiao Li
  • Patent number: 10598748
    Abstract: In a method and magnetic resonance (MR) apparatus for simultaneous multi-contrast recording, at least two different slices are repeatedly excited to generate echo signals of the respective slices, and the echo signals are recorded as scan data. In one repetition of the excitation and recording, one of the at least two slices is excited using desired first contrasting scan parameters for generating scan data weighted with a first contrast, and at least one other of the at least two slices is excited using desired second contrasting scan parameters for generating scan data weighted with a second contrast. The repetitions are repeated using the different desired first and second contrasting parameters, so that in each repetition, scan data of one slice weighted according to a first contrast and scan data from another slice weighted according to a second contrast are recorded and stored as scan data sets.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: March 24, 2020
    Assignee: Siemens Healthcare GmbH
    Inventor: Mario Zeller
  • Patent number: 10588578
    Abstract: Systems, devices and methods for performing a magnetic resonance imaging scan of a patient. For example, a method of performing a magnetic resonance imaging scan on a patient can include monitoring a physiological signal level of the patient, analyzing the monitored physiological signal level, and providing instructions to the patient and/or changing the environmental conditions exposed to the patient. The instructions and/or the change of the environmental conditions of the patient can be based on the monitored physiological signal level. The instructions can include an acoustic command and/or a visual command. The changing of the environmental conditions can include visual simulation, acoustic stimulation and/or air conditioning change.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: March 17, 2020
    Assignee: Koninklijke Philips N.V.
    Inventor: Gabrielle Marianne Beck
  • Patent number: 10568537
    Abstract: The present invention provides an apparatus and a corresponding method useful for electron paramagnetic resonance imaging, in situ and in vivo, using high-isolation transmit/receive (TX/RX) coils, which, in some embodiments, provide microenvironmental images that are representative of particular internal structures in the human body and spatially resolved images of tissue/cell protein signals responding to conditions (such as hypoxia) that show the temporal sequence of certain biological processes, and, in some embodiments, that distinguish malignant tissue from healthy tissue. In some embodiments, the TX/RX coils are in a surface, volume or surface-volume configuration.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: February 25, 2020
    Inventor: Howard J. Halpern
  • Patent number: 10502805
    Abstract: The disclosure relates to a method for processing movement signals detected during a magnetic resonance scan of a patient, and to a corresponding magnetic resonance device and a computer program product. According to the method, RF pulses are generated by a RF transmitting unit of a magnetic resonance device in order to excite nuclear spins in the body of the patient. Magnetic resonance signals are generated by the excited nuclear spins. For spatial encoding of the magnetic resonance signals, gradient pulses are generated by a gradient coil unit of the magnetic resonance device. The magnetic resonance signals are detected by a RF receiving unit of the magnetic resonance device. Furthermore, movement signals of the patient are detected by a movement detection unit during detection of the magnetic resonance signals, and these are processed by a processing unit.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 10, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Ralf Kartäusch, Uvo Hölscher
  • Patent number: 10495709
    Abstract: In a magnetic resonance apparatus and a method for operating the MR apparatus to acquire MR data in a single scan with different contrasts, nuclear spins in multiple slices of an examination subject are simultaneously excited in a single scan, with a simultaneous multi-slice acquisition sequence, in which a radio-frequency multi-band binomial pulse is radiated.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: December 3, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Himanshu Bhat, Mario Zeller
  • Patent number: 10470676
    Abstract: A method for non-contrast enhanced 4D time resolved dynamic magnetic resonance angiography using arterial spin labeling of blood water as an endogenous tracer and a multiphase balanced steady state free precession readout is presented. Imaging can be accelerated with dynamic golden angle radial acquisitions and k-space weighted imaging contrast (KWIC) image reconstruction and it can be used with parallel imaging techniques. Quantitative tracer kinetic models can be formed allowing cerebral blood volume, cerebral blood flow and mean transit time to be estimated. Vascular compliance can also be assessed using 4D dMRA by synchronizing dMRA acquisitions with the systolic and diastolic phases of the cardiac cycle.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: November 12, 2019
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
    Inventors: Danny J J Wang, Lirong Yan, Hee Kwon Song
  • Patent number: 10444312
    Abstract: Disclosed is a magnetic resonance imaging (MRI) system. The disclosed MRI system includes a system controller capable of separately acquiring MR image signals of different elements existing in an object. The system controller includes a first system controller capable of acquiring an MR signal of a first element, and a second system controller capable of acquiring an MR signal of a second element different from the first element. The first system controller and the second system controller are physically separated. The first system controller and the second system controller control a first radio frequency (RF) coil element and a second RF coil element of an RF coil, respectively.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: October 15, 2019
    Assignees: Gachon University of Industry-Academic Cooperation Foundation, Gil Medical Center
    Inventors: Jun-Young Chung, Kyoung-Nam Kim, Yuenchul Ryu, Yeji Han
  • Patent number: 10338179
    Abstract: Embodiments relate to acquiring magnetic resonance (MR) images with suppressed residual blood signal in the early cardiac phases, leading to images with a preferred dark-blood appearance throughout the entire cardiac cycle, which improves accuracy of subsequent post-processing algorithms. The acquisition of the desired blood suppressed tissue images is achieved through a double inversion recovery pulse in DENSE sequences. The double inversion recovery pulse is applied after an electrocardiogram (ECG) trigger at a beginning point of a repetition time period, followed by a displacement encoding module at an inversion time during the repetition time period and a readout module comprised of a plurality of frames during a remainder of the repetition time period. The displacement encoding module applies a labelling process on the tissue, while the readout module applies an un-labelling process. The readout module comprises an imaging sequence adapted to acquire DENSE images.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: July 2, 2019
    Assignees: Siemens Healthcare GmbH, Emory University
    Inventors: Xiaodong Zhong, John Oshinski, Deqiang Qiu, Amit Saindane
  • Patent number: 10293182
    Abstract: Systems and methods directed to adaptive radiotherapy planning are provided. In some aspects, provided system and method include producing synthetic images from magnetic resonance data using relaxometry maps. The method includes applying corrections to the data and generating relaxometry maps therefrom. In other aspects, a method for adapting a radiotherapy plan is provided. The method includes determining an objective function based on dose gradients from an initial dose distribution, and generating an optimized plan based on updated images, using aperture morphing and gradient maintenance algorithms without need for organ-at-risk contouring.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 21, 2019
    Assignee: The Medical College of Wisconsin, Inc.
    Inventors: X. Allen Li, Eric S. Paulson, Ergun Ahunbay, Cun-geng Yang, Vern Hart
  • Patent number: 10226233
    Abstract: Provided is an ultrasound diagnostic apparatus that measures the modulus of elasticity of a vascular wall, wherein only M-mode images for heartbeats necessary for the measurement are displayed. The problem is solved by, when freeze is implemented during a B/M-mode display, displaying an M-mode image after discarding a heartbeat at the time of freeze and possibly also a heartbeat immediately before freeze.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: March 12, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Masafumi Noguchi, Yukiya Miyachi
  • Patent number: 10219722
    Abstract: An apparatus (300, 400, 500) comprising a magnetic resonance imaging system (302), the magnetic resonance imaging system comprising: a magnet (306) adapted for generating a magnetic field for orientating the magnetic spins of nuclei of a subject (310) located within an imaging volume (308); a radio frequency transceiver (320) adapted for acquiring magnetic resonance data (346) using a radio frequency coil (318); a computer system (336) comprising a processor (338), wherein the computer system is adapted for controlling the apparatus; and a memory (342, 344) containing machine readable instructions (354, 356, 358, 360, 362), wherein execution of the instructions cause the processor to perform the steps of: acquiring (100, 204) magnetic resonance data using the magnetic resonance imaging system, wherein the magnetic resonance data comprises transverse relaxometry data, and calculating (102, 206) the temperature of the subject within a temperature measurement volume (332) in accordance with the transverse relaxo
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: March 5, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Jukka Ilmari Tanttu
  • Patent number: 10188361
    Abstract: A computer-implemented method for providing a multi-modality visualization of a patient includes receiving one or more image datasets. Each image dataset corresponds to a distinct image modality. The image datasets are segmented into a plurality of anatomical objects. A list of clinical tasks associated with displaying the one or more image datasets are received. A machine learning model is used to determine visualization parameters for each anatomical object based on the list of clinical tasks. Then, a synthetic display of the image datasets is created by presenting each anatomical object according to its corresponding visualization parameters.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: January 29, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Bernhard Geiger, Shaohua Kevin Zhou, Carol L. Novak, Daguang Xu, David Liu
  • Patent number: 10145927
    Abstract: The present invention provides a method for magnetic resonance (MR) imaging of a region of interest (142) of a subject of interest (120) under application of a scanning sequence (200) comprising at least one pre-pulse (202, 204) and multiple readouts (206), whereby the multiple readouts (206) are performed after the at least one pre-pulse (202, 204) with different configurations causing different image contrasts, comprising the steps of performing a preparation phase comprising applying at least one scanning sequence (200) to provide a set of reference readouts (206) using the different configurations, and generating a set of navigator images (210) with one navigator image (210) of the region of interest (142) for each configuration of the reference readouts (206), performing an examination phase comprising applying at least one scanning sequence (200), whereby at least one image (212) of the region of interest (142) is generated for each scanning sequence (200), determining motion of the subject of interest
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: December 4, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Tobias Ratko Voigt, Markus Olaf Samuel Henningsson
  • Patent number: 10132898
    Abstract: Described here are a system and method for obtaining multiple different images when performing a single scan of a subject with a magnetic resonance imaging (“MRI”) system. The scan includes the application of two or more magnetization preparation radio frequency (“RF”) pulses, such as inversion recovery (“IR”) pulses. Data is acquired after the application of each magnetization preparation RF pulse, thus allowing the acquisition of multiple different images of the subject in a single scan. Using this approach, the same information that used to require multiple different scans of the subject can be acquired in one single scan, and in less time than would be required to perform the multiple scans.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: November 20, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Steven Ryan Kecskemeti, Andrew L. Alexander
  • Patent number: 10117597
    Abstract: An MRI image processing and analysis system may identify instances of structure in MRI flow data, e.g., coherency, derive contours and/or clinical markers based on the identified structures. The system may be remotely located from one or more MRI acquisition systems, and perform: perform error detection and/or correction on MRI data sets (e.g., phase error correction, phase aliasing, signal unwrapping, and/or on other artifacts); segmentation; visualization of flow (e.g., velocity, arterial versus venous flow, shunts) superimposed on anatomical structure, quantification; verification; and/or generation of patient specific 4-D flow protocols. An asynchronous command and imaging pipeline allows remote image processing and analysis in a timely and secure manner even with complicated or large 4-D flow MRI data sets.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: November 6, 2018
    Assignee: ARTERYS INC.
    Inventors: Fabien Beckers, Albert Hsiao, John Axerio-Cilies, Torin Arni Taerum, Daniel Marc Raymond Beauchamp
  • Patent number: 10052037
    Abstract: A system for non-invasively determining an indication of an individual's blood pressure is described. In certain embodiments, the system calculates pulse wave transit time using two acoustic sensors. The system can include a first acoustic sensor configured to monitor heart sounds of the patient corresponding to ventricular systole and diastole and a second acoustic sensor configured to monitor arterial pulse sounds at an arterial location remote from the heart. The system can advantageously calculate a arterial pulse wave transit time (PWTT) that does not include the pre-ejection period time delay. In certain embodiments, the system further includes a processor that calculates the arterial PWTT obtained from the acoustic sensors. The system can use this arterial PWTT to determine whether to trigger an occlusive cuff measurement.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 21, 2018
    Assignee: Masimo Corporation
    Inventors: Eric Karl Kinast, Valery G. Telfort
  • Patent number: 10054659
    Abstract: In a method for recording magnetic resonance data in a target region of a patient while the target region moves due to respiration a single-shot turbo spin echo sequence is used as a magnetic resonance sequence in a magnetic resonance apparatus. SPAIR fat saturation is used by emitting an inversion pulse at an inversion time before the data recording with the magnetic resonance apparatus. Multiple repetitions of the sequence of an inversion pulse, an inversion time and a data recording using the magnetic resonance sequence are triggered by a respiratory signal describing the respiratory cycle, each repetition occurring upon fulfillment of a recording criterion. At least one further inversion pulse is emitted in a waiting time between the sequences.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: August 21, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Antje Kickhefel, Dominik Paul
  • Patent number: 10029121
    Abstract: Systems and methods directed to adaptive radiotherapy planning are provided. In some aspects, provided system and method include producing synthetic images from magnetic resonance data using relaxometry maps. The method includes applying corrections to the data and generating relaxometry maps therefrom. In other aspects, a method for adapting a radiotherapy plan is provided. The method includes determining an objective function based on dose gradients from an initial dose distribution, and generating an optimized plan based on updated images, using aperture morphing and gradient maintenance algorithms without need for organ-at-risk contouring.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: July 24, 2018
    Assignee: The Medical College of Wisconsin, Inc.
    Inventors: X. Allen Li, Eric S. Paulson, Ergun Ahunbay, Cun-geng Yang, Vern Hart
  • Patent number: 10024791
    Abstract: A cylindrical optical tomography system includes a light emitting array having a plurality of light emitting elements, a cylindrical sample holding element, and a light sensing array including a plurality of light sensing elements, wherein the light sensing array is configured to sense light emitted from the light emitting array which has passed through the sample holding module.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: July 17, 2018
    Inventor: Lester F. Ludwig
  • Patent number: 9945922
    Abstract: A medical imaging apparatus includes a detector unit, a patient-receiving area at least partially surrounded by the detector unit, and a motion capture unit. The motion capture unit includes at least one first motion capture sensor for capturing patient monitoring data relating to a motion of the patient, and at least one second motion capture sensor for the capture of further motion data relating to a motion of the first motion capture sensor.
    Type: Grant
    Filed: September 13, 2014
    Date of Patent: April 17, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Benner
  • Patent number: 9839366
    Abstract: An MRI apparatus includes an imaging data acquiring unit and a blood flow information generating unit. The imaging data acquiring unit acquires imaging data from an imaging region including myocardium, without using a contrast medium, by applying a spatial selective excitation pulse to a region including at least a part of an ascending aorta for distinguishably displaying inflowing blood flowing into the imaging region. The blood flow information generating unit generates blood flow image data based on the imaging data.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: December 12, 2017
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Mitsue Miyazaki, Shigehide Kuhara
  • Patent number: 9772389
    Abstract: In a method and magnetic resonance apparatus to acquire diagnostic image data of a contrast agent-filled target area of a patient, a peak time of the test bolus in the target area is automatically determined, from which a wait period is then determined for administering the main bolus. After the main bolus has been administered to the patient, magnetic resonance images of the target area are acquired, and each is analyzed immediately after acquisition thereof to determine whether that image shows arrival of the contrast agent. If and when one of these images shows such arrival, an acquisition protocol is immediately started in order to acquire the diagnostic image data set. If none of these images shows arrival of the contrast agent, the protocol to acquire diagnostic image data is started after the wait period.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: September 26, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Manuela Rick, Peter Schmitt, Andre de Oliveira
  • Patent number: 9754366
    Abstract: A method includes determining a change in a volume of a tissue of interest located in at least two data sets between the at least two data sets. The at least two image data sets include a first image data set acquired at a first time and a second image data set acquired at a second time, and the first and second times are different. The method includes generating a rendering which includes a region in which the tissue of interest is located and indicia that indicates a magnitude of the change across the region. The region is superimposed over the rendering, which is generated based on at least one of the at least two image data sets, and linked to a corresponding image respectively in the at least two image data sets including voxels representing tissue of interest. The method includes visually presenting the rendering in a graphical user interface.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: September 5, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Rafael Wiemker, Sven Kabus, Tobias Klinder
  • Patent number: 9700220
    Abstract: A magnetic resonance imaging apparatus includes an imaging condition setting unit, a scan performing unit and a blood flow image generating unit. The imaging condition setting unit sets a sequence accompanying application of a motion probing gradient pulse as an imaging condition. The scan performing unit performs an imaging scan according to the sequence. The blood flow image generating unit generates a blood flow image based on data acquired by the imaging scan.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 11, 2017
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Mitsue Miyazaki, Hitoshi Kanazawa
  • Patent number: 9585575
    Abstract: Elicited MRI signals are processed into MR image data in conjunction (a) with use of an initial spatially-selective RF tag pulse (tag-on) and (b) without use of an initial spatially-selective NMR RF tag pulse (tag-off) in respectively corresponding data acquisition subsequences. Multi-dimensional tag-on and tag-off data acquisition subsequences are used for each of plural time-to-inversion (TI) intervals without using an injected contrast agent. Acquired image data sets are subtracted for each TI interval to produce difference values as a function of time representing blood perfusion for the ROI that differentiates between normal, ischemic and infarct tissues.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: March 7, 2017
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Mitsue Miyazaki, Xiangzhi Zhou, Tsutomu Hoshino