公开(公告)号：EP3451008A1

公开(公告)日：2019-03-06

申请号：EP17188159.2

申请日：2017-08-28

申请人： Siemens Healthcare GmbH

发明人： Feiweier, Thorsten ,  Niederlöhner, Daniel

IPC分类号： G01R33/44 ,  G01R33/30 ,  G01R33/565

CPC分类号： G01R33/56563 ,  A61B5/055 ,  G01R33/243 ,  G01R33/246 ,  G01R33/307 ,  G01R33/443 ,  G01R33/4828 ,  G01R33/543 ,  G01R33/5608 ,  G01R33/5615 ,  G01R33/565 ,  G06T2207/10088 ,  G06T2207/30004

摘要： A method and system for determining a magnetic field map in a MR system based on position of a movable patient support of the MR system are provided, wherein a first resulting field map including position dependent information about a magnetic field distribution in an homogeneity volume including an examination volume of the MR system is provided when the movable patient support is located at a first position, wherein a stationary field map including information about a magnetic field distribution in the homogeneity volume is provided, which is independent of the position of the movable patient support, wherein a position dependent field map including information about a magnetic field distribution in the homogeneity volume mainly influenced by a position of the movable patient support is determined using the stationary field map and the first resulting field map, and wherein a second resulting field map in the homogeneity volume is determined when the movable patient support is located at a second position different from the first position, using the stationary field map and the position dependent field map.

公开(公告)号：EP3049971B1

公开(公告)日：2018-11-14

申请号：EP14766290.2

申请日：2014-08-28

申请人： HeartFlow, Inc.

发明人： GRADY, Leo ,  SCHAAP, Michiel

IPC分类号： G06F17/30 ,  G06T7/00 ,  G06F3/0484 ,  G16H30/20 ,  G06F19/00 ,  G06T11/60

CPC分类号： G06T11/60 ,  G06F3/04842 ,  G06F3/04845 ,  G06F17/30268 ,  G06F19/00 ,  G06F19/321 ,  G06T7/0012 ,  G06T7/97 ,  G06T2207/10004 ,  G06T2207/30004 ,  G16H30/20

摘要： Systems and methods are disclosed for controlling image annotation. One method includes acquiring a digital representation of image data and generating a set of image annotations for the digital representation of the image data. The method also may include determining an association between members of the set of image annotations and generating one or more groups of members based on the association. A representative annotation from the one or more groups may also be determined, presented for selection, and the selection may be recorded in memory.

公开(公告)号：EP3392832A1

公开(公告)日：2018-10-24

申请号：EP18168328.5

申请日：2018-04-19

申请人： General Electric Company

发明人： TEGZES, Pal ,  RADICS, Attila ,  CSERNAI, Eszter ,  RUSKO, Laszlo

IPC分类号： G06T7/11

CPC分类号： G06T7/0012 ,  G06K9/2054 ,  G06T7/11 ,  G06T2207/10081 ,  G06T2207/20084 ,  G06T2207/30004

摘要： Certain examples provide an image data processing system (1100) including an anatomy detector (1120) to detect an anatomy in an image and to remove items not included in the anatomy from the image. The example system (1100) includes a bounding box generator (1130) to generate a bounding box around a region of interest in the anatomy. The example system (1100) includes a voxel-level segmenter (1140) to classify image data within the bounding box at the voxel level to identify an object in the region of interest. The example system (1100) includes an output imager (1160) to output an indication of the object identified in the region of interest segmented in the image.

公开(公告)号：EP3391820A1

公开(公告)日：2018-10-24

申请号：EP17747731.2

申请日：2017-02-02

申请人： Samsung Electronics Co., Ltd.

发明人： NAM, Hyun-jung

IPC分类号： A61B6/00 ,  A61B6/03

CPC分类号： A61B6/461 ,  A61B6/032 ,  A61B6/481 ,  G06T5/009 ,  G06T5/40 ,  G06T2207/10081 ,  G06T2207/20208 ,  G06T2207/30004

摘要： According to an aspect of disclosed embodiments, a computed tomography (CT) image processing apparatus includes: an image processor configured to set two or more CT number ranges of interest defined by a window level and a window width for CT numbers of CT image data, and map the CT numbers to display grayscale values of a display; and the display configured to display the CT image data according to a mapping result, wherein a gradient of a graph showing a relationship between the CT numbers and the display grayscale values in a CT number range included in the two or more CT number ranges of interest is greater than a gradient in a CT number range not included in the two or more CT number ranges of interest, wherein the graph showing the relationship between the CT numbers and the display grayscale values has a zero or positive gradient over an entire section, or has a zero or negative gradient over the entire section.

公开(公告)号：EP1952349B1

公开(公告)日：2018-10-17

申请号：EP06819393.7

申请日：2006-11-10

申请人： Bracco Suisse SA

发明人： FRINKING, Peter ,  ROGNIN, Nicolas ,  ARDITI, Marcel

IPC分类号： G06T5/50 ,  G06T7/00 ,  A61B8/00

CPC分类号： G06T5/50 ,  A61B8/06 ,  A61B8/481 ,  G06T5/008 ,  G06T5/40 ,  G06T2207/10016 ,  G06T2207/10132 ,  G06T2207/30004

摘要： An embodiment of a system is proposed for imaging a body part including a tissue, the body part being perfused with a contrast agent. The system includes means for providing a sequence of original images offering a digital representation over time of the body-part, each original image including a plurality of original values each one indicative of a response to an interrogation signal of a corresponding location of the body-part possibly including the contrast agent with a contribution of the tissue substantially reduced. The system further includes means for generating an overlaid image for each one of a set of selected original images, for each one of a set of selected locations the overlaid image including an overlaid value consisting of a) a linearized value derived from the corresponding original value to be substantially proportional to a concentration of the contrast agent in the selected location when the linearized value reaches a predefined threshold, or otherwise b) a compressed value depending non-linearly on the corresponding response to the interrogation signal; and means for displaying the overlaid images in succession.

公开(公告)号：EP2523623B1

公开(公告)日：2018-10-03

申请号：EP10842792.3

申请日：2010-12-15

申请人： Elekta Ltd.

发明人： LACHAINE, Martin ,  TREMBLAY, Sebastien ,  LATHUILIERE, Fabienne ,  FALCO, Tony

IPC分类号： A61B8/08 ,  A61N5/00 ,  G06F19/00 ,  G06T7/00 ,  A61B8/00 ,  G06T7/20

CPC分类号： A61N5/1067 ,  A61B8/085 ,  A61B8/4245 ,  A61B8/4263 ,  A61B8/4461 ,  A61B8/4472 ,  A61B8/483 ,  A61B8/54 ,  A61B8/58 ,  A61B8/587 ,  A61B34/20 ,  A61B2034/2055 ,  A61B2034/2063 ,  A61B2034/2065 ,  A61B2090/378 ,  A61N5/1049 ,  A61N2005/1058 ,  A61N2005/1074 ,  G06T7/251 ,  G06T2207/10132 ,  G06T2207/10136 ,  G06T2207/30004

摘要： Various implementations of the invention provide techniques and supporting systems that facilitate real-time or near-real-time ultrasound tracking for the purpose of calculating changes in anatomical features during a medical procedure. More specifically, anatomical features within a patient undergoing a medical procedure are tracked by obtaining temporally-distinct three dimensional ultrasound images that include the feature of interest and obtaining a targeted subset of ultrasound images focused on the feature. Based on the targeted subset of ultrasound images, a displacement of the feature is determined and image parameters used to obtain the targeted subset of ultrasound images are adjusted based on the displacement. This results in a time-based sequence of three dimensional images and targeted ultrasound images of the feature that identify changes in the position, size, location, and/or shape of the feature.

公开(公告)号：EP3218056B1

公开(公告)日：2018-09-19

申请号：EP15780870.0

申请日：2015-10-14

申请人： Brainlab AG

发明人： SCHELL, Stefan ,  SCHÄTTI, Andreas ,  PROMBERGER, Claus ,  GRUMMT, Robert

IPC分类号： A61N5/10

CPC分类号： A61N5/1071 ,  A61B6/5217 ,  A61B34/10 ,  A61B2560/0266 ,  A61N5/1031 ,  A61N5/1038 ,  G01T7/005 ,  G06T7/0014 ,  G06T2207/20004 ,  G06T2207/20221 ,  G06T2207/30004

摘要： Disclosed is a computer-implemented medical data processing method for determining a dose distribution for use in a medical procedure involving irradiation of an anatomical structure of a patient's body with ionising radiation. A processor acquires medical image data describing a medical image of the anatomical structure. The processor acquires dose distribution data describing an irradiation dose distribution spatially defined in the reference system of the medical image of the anatomical structure. Prioritization data is determined that describes, for each image unit of the medical image describing non-target tissue, a priority of that image unit for consideration during an optimization of the irradiation dose distribution described by the dose distribution data. Based on the dose distribution data and the prioritization data, changed dose distribution data is determined that describes a changed irradiation dose distribution spatially defined in the reference system of the medical image of the anatomical structure.

公开(公告)号：EP2936433B1

公开(公告)日：2018-09-19

申请号：EP13814107.2

申请日：2013-12-18

申请人： Bracco Suisse SA

发明人： FRINKING, Peter

IPC分类号： G06T7/174

CPC分类号： A61B8/481 ,  A61M5/007 ,  G06T7/0014 ,  G06T7/174 ,  G06T2207/10132 ,  G06T2207/20112 ,  G06T2207/30004

摘要： An embodiment of a segmentation solution for use in diagnostic imaging applications is proposed. A corresponding embodiment of a data-processing segmentation method comprises: providing a representation over a non-zero analysis time period of a body-part being perfused with a contrast agent, the representation comprising, for each location of a set of locations of the body-part, an indication of a response over the analysis time period of the location to an interrogation signal; calculating, for each selected location of a set of selected locations, the value of at least one statistical parameter of a statistical distribution of the response over the analysis time period of the selected location, the set of selected locations comprising all the locations or a part thereof; and segmenting the selected locations according to a comparison between the values of said at least one statistical parameter for the selected locations with at least one segmentation threshold.

公开(公告)号：EP3195265B1

公开(公告)日：2018-08-22

申请号：EP15778736.7

申请日：2015-09-15

申请人： Koninklijke Philips N.V.

发明人： KOEHLER, Thomas ,  PROKSA, Roland ,  GRASS, Michael

IPC分类号： G06T11/00

CPC分类号： G06T11/008 ,  A61B6/032 ,  A61B6/5235 ,  A61B6/5282 ,  G06K9/6215 ,  G06T5/50 ,  G06T7/0012 ,  G06T11/006 ,  G06T11/60 ,  G06T2207/10081 ,  G06T2207/30004 ,  G06T2211/408 ,  G06T2211/424

摘要： A method includes performing a first pass of an iterative image reconstruction in which an intermediate first spectral image and an intermediate second spectral image are generated using an iterative image reconstruction algorithm, start first spectral and second spectral images, and initial first spectral regularization and second spectral regularization parameters, updating at least one of the initial first spectral regularization or second spectral regularization parameters, thereby creating an updated first spectral regularization or second spectral regularization parameter, based at least on a sharpness of one of the intermediate first spectral or second spectral images, and performing a subsequent pass of the iterative image reconstruction in which an updated intermediate first spectral and second spectral image is generated using the iterative image reconstruction algorithm, the intermediate first spectral and second spectral images, and the updated first spectral regularization and Compton scatter regularization parameters.

公开(公告)号：EP2823465B1

公开(公告)日：2018-08-15

申请号：EP13719180.5

申请日：2013-03-04

申请人： Koninklijke Philips N.V. ,  Philips Deutschland GmbH

发明人： LORENZ, Cristian ,  GRASS, Michael ,  SCHAEFER, Dirk ,  BRENDEL, Bernhard, Johannes

IPC分类号： G06T7/593 ,  A61B6/03

CPC分类号： A61B6/5252 ,  A61B6/03 ,  A61B6/4021 ,  A61B6/4441 ,  A61B6/5235 ,  A61B6/5258 ,  G06T5/00 ,  G06T7/593 ,  G06T15/00 ,  G06T2207/10116 ,  G06T2207/20172 ,  G06T2207/30004

摘要： A double focal spot X-ray tube is used to acquire a set of two images PIα, PIβ for a given gantry position from slightly different view positions. The stereo or binocular disparity (BD) of imaged structures is used to estimate the object depth in view direction, which in turn is used to discriminate between objects inside IO and outside EO the body. Respective structures are virtually removed from the images PIα, PIβ.