Patents by Inventor Jan Boese

Jan Boese has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10719986
    Abstract: A method and system for virtual percutaneous valve implantation is disclosed. A patient-specific anatomical model of a heart valve is estimated based on 3D cardiac medical image data and an implant model representing a valve implant is virtually deployed into the patient-specific anatomical model of the heart valve. A library of implant models, each modeling geometrical properties of a corresponding valve implant, is maintained. The implant models maintained in the library are virtually deployed into the patient specific anatomical model of the heart valve to select an implant type and size and deployment location and orientation for percutaneous valve implantation.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: July 21, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Dominik Zaeuner, Razvan Ioan Ionasec, Bogdan Georgescu, Yefeng Zheng, Dorin Comaniciu, Ingmar Voigt, Jan Boese
  • Publication number: 20190046125
    Abstract: Methods for computing hemodynamic quantities include: (a) acquiring angiography data from a patient; (b) calculating a flow and/or calculating a change in pressure in a blood vessel of the patient based on the angiography data; and (c) computing the hemodynamic quantity based on the flow and/or the change in pressure. Systems for computing hemodynamic quantities and computer readable storage media are described.
    Type: Application
    Filed: October 16, 2018
    Publication date: February 14, 2019
    Inventors: Puneet Sharma, Xudong Zheng, Ali Kamen, Lucian Mihai Itu, Bogdan Georgescu, Dorin Comaniciu, Thomas Redel, Jan Boese, Viorel Mihalef, Saikiran Rapaka
  • Patent number: 9999399
    Abstract: A method and system for autoregressive model based pigtail catheter motion prediction in a fluoroscopic image sequence is disclosed. Parameters of an autoregressive model are estimated based on observed pigtail catheter tip positions in a plurality of previous frames of a fluoroscopic image sequence. A pigtail catheter tip position in a current frame of the fluoroscopic image sequence is predicted using the fitted autoregressive model. The predicted pigtail catheter tip position can be used to constrain pigtail catheter tip detection in the current frame. The predicted pigtail catheter tip position may also be used to predict abnormal motion in the fluoroscopic image sequence.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: June 19, 2018
    Assignee: Siemens Healthcare GmbH
    Inventors: Yu Pang, Yefeng Zheng, Matthias John, Jan Boese, Dorin Comaniciu
  • Patent number: 9824302
    Abstract: A method and system for fusion of multi-modal volumetric images is disclosed. A first image acquired using a first imaging modality is received. A second image acquired using a second imaging modality is received. A model and of a target anatomical structure and a transformation are jointly estimated from the first and second images. The model represents a model of the target anatomical structure in the first image and the transformation projects a model of the target anatomical structure in the second image to the model in the first image. The first and second images can be fused based on estimated transformation.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: November 21, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Sasa Grbic, Razvan Ioan Ionasec, Yang Wang, Bogdan Georgescu, Tommaso Mansi, Dorin Comaniciu, Yefeng Zheng, Shaohua Kevin Zhou, Matthias John, Jan Boese
  • Patent number: 9715637
    Abstract: A method and system for aorta segmentation in a 3D volume, such as a C-arm CT volume is disclosed. The aortic root is detected in the 3D volume using marginal space learning (MSL) based segmentation. The aortic arch is detected in the 3D volume using MSL based segmentation. The ascending aorta is tracked from the aortic root to the aortic arch in the 3D volume, and the descending aorta is tracked from the aortic arch in the 3D volume.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: July 25, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Yefeng Zheng, Bogdan Georgescu, Matthias John, Jan Boese, Dorin Comaniciu
  • Patent number: 9687204
    Abstract: A method and system for registering ultrasound images and physiological models to x-ray fluoroscopy images is disclosed. A fluoroscopic image and an ultrasound image, such as a Transesophageal Echocardiography (TEE) image, are received. A 2D location of an ultrasound probe is detected in the fluoroscopic image. A 3D pose of the ultrasound probe is estimated based on the detected 2D location of the ultrasound probe in the fluoroscopic image. The ultrasound image is mapped to a 3D coordinate system of a fluoroscopic image acquisition device used to acquire the fluoroscopic image based on the estimated 3D pose of the ultrasound probe. The ultrasound image can then be projected into the fluoroscopic image using a projection matrix associated with the fluoroscopic image. A patient specific physiological model can be detected in the ultrasound image and projected into the fluoroscopic image.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: June 27, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Peter Mountney, Markus Kaiser, Ingmar Voigt, Matthias John, Razvan Ioan Ionasec, Jan Boese, Dorin Comaniciu
  • Patent number: 9582934
    Abstract: A method and system for extracting a silhouette of a 3D mesh representing an anatomical structure is disclosed. The 3D mesh is projected to two dimensions. Silhouette candidate edges are generated in the projected mesh by pruning edges and mesh points based on topology analysis of the projected mesh. Each silhouette candidate edge that intersects with another edge in the projected mesh is split into two silhouette candidate edges. The silhouette is extracted using an edge following process on the silhouette candidate edges.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: February 28, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Yefeng Zheng, Yu Pang, Rui Liao, Matthias John, Jan Boese, Shaohua Kevin Zhou, Dorin Comaniciu
  • Patent number: 9349197
    Abstract: The left ventricle epicardium is estimated in medical diagnostic imaging. C-arm x-ray data is used to detect an endocardium at different phases. The detected endocardium at the different phases is compared to sample endocardiums at different phases. The sample endocardiums have corresponding sample epicardiums. The transformation between the most similar sample endocardium or endocardiums over time and the detected endocardium over time is applied to the corresponding sample epicardium or epicardiums. The transformed sample epicardium over time is the estimated epicardium over time for the C-arm x-ray data.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: May 24, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Mingqing Chen, Yefeng Zheng, Kerstin Mueller, Christopher Rohkohl, Günter Lauritsch, Jan Boese, Gareth Funka-Lea, Dorin Comaniciu
  • Publication number: 20160073970
    Abstract: Methods for computing hemodynamic quantities include: (a) acquiring angiography data from a patient; (b) calculating a flow and/or calculating a change in pressure in a blood vessel of the patient based on the angiography data; and (c) computing the hemodynamic quantity based on the flow and/or the change in pressure. Systems for computing hemodynamic quantities and computer readable storage media are described.
    Type: Application
    Filed: November 20, 2015
    Publication date: March 17, 2016
    Inventors: Puneet Sharma, Xudong Zheng, Ali Kamen, Lucian Mihai Itu, Bogdan Georgescu, Dorin Comaniciu, Thomas Redel, Jan Boese, Viorel Mihalef, Saikiran Rapaka
  • Patent number: 9259200
    Abstract: Methods, systems, and apparatus for obtaining a sequence of x-ray images are disclosed. An object of interest in a first x-ray image is detected and an area of interest, based on a predicted motion of the object of interest, is determined. A second x-ray image of the area of interest is acquired using spatial x-ray modification to control an x-ray to pass through a portion of a patient corresponding to the area of interest.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: February 16, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Peter Mountney, Andreas Maier, Razvan Ioan Ionasec, Jan Boese, Dorin Comaniciu
  • Patent number: 9247918
    Abstract: Methods for computing hemodynamic quantities include: (a) acquiring angiography data from a patient; (b) calculating a flow and/or calculating a change in pressure in a blood vessel of the patient based on the angiography data; and (c) computing the hemodynamic quantity based on the flow and/or the change in pressure. Systems for computing hemodynamic quantities and computer readable storage media are described.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: February 2, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventors: Puneet Sharma, Xudong Zheng, Ali Kamen, Lucian Mihai Itu, Bogdan Georgescu, Dorin Comaniciu, Thomas Redel, Saikiran Rapaka, Viorel Mihalef, Jan Boese
  • Patent number: 9189851
    Abstract: A method (10) to compensate for cardiac and respiratory motion in cardiac imaging during minimal invasive (e.g., trans-catheter) AVI procedures by image-based tracking (20, 25) on fluoroscopic images.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: November 17, 2015
    Assignees: SIEMENS AKTIENGESELLSCHAFT, SIEMENS MEDICAL SOLUTIONS USA, INC.
    Inventors: Rui Liao, Ali Kamen, Matthias John, Alois Nöttling, Jan Boese, Marily Sarmiento
  • Patent number: 9153411
    Abstract: An X-ray imaging apparatus has at least one X-ray image system rotatable about an examination volume. The X-ray image system is controlled such that during a continuous rotation of the system, at least one 2D projection image is recorded. An image generation facility generates the 2D projection image from the measured data. The X-ray source includes an X-ray focus which can be changed in terms of position, which, during the recording of the 2D projection image, moves counter to the direction of rotation of the X-ray image system such that its spatial position in a fixed coordinate system does not change. The X-ray detector records several 2D partial images, from which the 2D projection image is calculated with the rotational movement of the X-ray detector being at least approximately compensated. The 2D projection images have significantly reduced image blur.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: October 6, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jan Boese, Frank Dennerlein, Thomas Redel
  • Patent number: 9147268
    Abstract: Background information is subtracted from projection data in medical diagnostic imaging. The background is removed using data acquired in a single rotational sweep of a C-arm. The removal may be by masking out a target, leaving the background, in the data as constructed into a volume. For subtraction, the masked background information is projected to a plane and subtracted from the data representing the plane.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: September 29, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Mingqing Chen, Yefeng Zheng, Kerstin Mueller, Christopher Rohkohl, Günter Lauritsch, Jan Boese, Gareth Funka-Lea, Dorin Comaniciu
  • Patent number: 9014423
    Abstract: A method and system for adaptive discriminant learning and measurement fusion for image based catheter tracking is disclosed. An adaptive discriminant model is trained online based on a tracked object, such as a pigtail catheter tip, in at least one previous frame of a fluoroscopic image sequence. The object is tracked in the current frame of the fluoroscopic image sequence based at least on the adaptive discriminant model trained online. The object may be tracked in the current frame based on a fusion of three types of measurement models including the adaptive discriminant model trained online, an object detection model trained offline, and an online appearance model.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: April 21, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peng Wang, Yefeng Zheng, Matthias John, Jan Boese, Gareth Funka-Lea, Dorin Comaniciu
  • Patent number: 9002078
    Abstract: A system and method for performing shape-constrained aortic valve landmark detection using 3D medical images is provided. A rigid global shape defining initial positions of a plurality of aortic valve landmarks is detected within a 3D image. Each of the plurality of aortic valve landmarks is detected based on the initial positions.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: April 7, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Yefeng Zheng, Matthias John, Jan Boese, Dorin Comaniciu
  • Patent number: 8986217
    Abstract: The invention relates to a mapping catheter for determination of data of an area of an organ embodied as a flat surface, especially of the heart, to be presented graphically, with at least one thermosensor essentially aligned in the direction of the longitudinal axis of the mapping catheter for determination of temperature-related data which is arranged at a tip of the mapping catheter being provided in the distal area of the mapping catheter for introduction into the organ.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: March 24, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jan Boese, Norbert Rahn, Bernhard Sandkamp
  • Patent number: 8923590
    Abstract: A method and system for estimating 3D cardiac motion from a single C-arm angiography scan is disclosed. An initial 3D volume is reconstructed from a plurality of 2D projection images acquired in a single C-arm scan. A static mesh is extracted by segmenting an object in the initial 3D volume. The static mesh is projected to each of the 2D projection images. A cardiac phase is determined for each of the 2D projection images. A deformed mesh is generated for each of a plurality of cardiac phases based on a 2D contour of the object and the projected mesh in each of the 2D projection images of that cardiac phase.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: December 30, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Mingqing Chen, Yefeng Zheng, Gareth Funka-Lea, Guenter Lauritsch, Jan Boese, Dorin Comaniciu
  • Patent number: 8855391
    Abstract: The invention relates to an operating method for an imaging system for the time-resolved mapping of an iteratively moving examination object. First recordings of the object are generated by the imaging system from various angles while simultaneously recording a phase signal. Multiple static 3D-image data sets corresponding to a sequence of defined phases are reconstructed from the first recordings. Three-dimensional motion fields are calculated from the 3D-image data sets, by which two 3D-image data sets are mapped onto one another. Second recordings of the object are generated by the imaging system from various angles while simultaneously recording a phase signal. 3D-image data sets from the second recordings in a previously determined reference phase of the phase signal using the motion fields is generated which is a sequence of motion-compensated 3D-image data sets.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: October 7, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jan Boese
  • Patent number: 8848861
    Abstract: A system acquires images in the presence of a contrast agent of relatively long persistence using a synchronization processor, image acquisition device and imaging controller. The synchronization processor provides an image acquisition trigger signal for acquiring images at a particular point within both a cardiac and a respiratory cycle in response to signals representing cardiac and respiratory cycles. The image acquisition device includes an assembly comprising a radiation emitter and detector rotatable about a patient for acquiring images of a portion of patient anatomy at different angles. The imaging controller initiates acquisition of data representing multiple images in the presence of a contrast agent of relatively long persistence by repetitively, initiating rotation of the assembly to an angle, acquiring an image at the angle in response to the trigger signal and incrementally increasing the angle.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 30, 2014
    Assignees: Siemens Aktiengesellschaft, Siemens Medical Solutions USA, Inc.
    Inventors: Andrew F Hall, Jan Boese