公开(公告)号：EP3099236B1

公开(公告)日：2018-11-21

申请号：EP14835577.9

申请日：2014-12-12

申请人： Koninklijke Philips N.V.

发明人： BRENDEL, Bernhard Johannes ,  GRASS, Michael ,  SCHMITT, Holger ,  KABUS, Sven

IPC分类号： A61B6/00

CPC分类号： A61B6/5264 ,  A61B6/032 ,  A61B6/4435 ,  A61B6/463 ,  A61B6/503 ,  A61B6/504 ,  A61B6/5205 ,  A61B6/5241 ,  G06T7/215 ,  G06T11/005 ,  G06T11/008 ,  G06T2207/10072 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T2207/10104 ,  G06T2207/10108 ,  G06T2211/412

摘要： A method includes obtaining projection data from a scan of a moving structure of interest. The method further includes reconstructing the projection data, generating first image data. The method further includes identifying a sub-set of the projection. The method further includes reconstructing the sub-set projection data, generating second image data. The method further includes identifying a region in which the moving structure of interest is located based on the first image data. The method further includes identifying a location of the moving structure of interest in the identified region based on the second image data.

公开(公告)号：EP3378400A1

公开(公告)日：2018-09-26

申请号：EP18171106.0

申请日：2011-10-20

申请人： Medtronic Navigation, Inc.

发明人： HELM, Patrick A. ,  SHI, Shuanghe

IPC分类号： A61B6/00 ,  A61M5/00 ,  A61B6/02

CPC分类号： A61B6/481 ,  A61B6/02 ,  A61B6/4085 ,  A61B6/4405 ,  A61B6/4476 ,  A61B6/469 ,  A61B6/482 ,  A61B6/486 ,  A61B6/503 ,  A61B6/504 ,  A61B6/507 ,  A61B6/5288 ,  A61B6/545 ,  A61B34/20 ,  A61B2576/023 ,  A61M5/007 ,  G01N2223/419 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2207/30048 ,  G06T2211/404 ,  G06T2211/412

摘要： A method and system is disclosed for acquiring image data of a subject. The image data can be collected with an imaging system having a detector able to move relative to the subject. A contrast agent can be injected into the subject and image data can be acquired with the contrast agent in various phases of the subject. A volumetric model of multiple phases can be reconstructed selected reconstruction techniques.

公开(公告)号：EP2672882B1

公开(公告)日：2018-07-25

申请号：EP12800361.3

申请日：2012-06-14

申请人： Mistretta Medical, LLC ,  CMS Medical, LLC

发明人： MISTRETTA, Charles A ,  STROTHER, Charles M.

IPC分类号： A61B5/00 ,  G06T1/00 ,  G06F19/00 ,  G06T11/00

CPC分类号： G06T15/00 ,  A61B6/032 ,  A61B6/4441 ,  A61B6/481 ,  A61B6/486 ,  A61B6/504 ,  A61B6/5205 ,  A61B2034/2065 ,  A61B2090/367 ,  A61B2090/376 ,  G06T5/50 ,  G06T11/008 ,  G06T2200/08 ,  G06T2207/10081 ,  G06T2207/20182 ,  G06T2207/20216 ,  G06T2210/41 ,  G06T2211/404 ,  G06T2211/412

摘要： A method for generating time-resolved 3D medical images of a subject by imparting temporal information from a time-series of 2D medical images into 3D images of the subject. Generally speaking, this is achieved by acquiring image data using a medical imaging system, generating a time-series of 2D images of a ROI from at least a portion of the acquired image data, reconstructing a 3D image substantially without temporal resolution from the acquired image data, and selectively combining the time series of 2D images with the 3D image. Selective combination typically involves registering frames of the time-series of 2D images with the 3D image, projecting pixel values from the 2D image frames “into” the 3D image, and weighting the 3D image with the projected pixel values for each frame of the time-series of 2D images.

公开(公告)号：EP2629665B1

公开(公告)日：2018-05-09

申请号：EP11779032.9

申请日：2011-10-20

申请人： Medtronic Navigation, Inc.

发明人： HELM, Patrick A. ,  SHI, Shuanghe

IPC分类号： G06T11/00 ,  A61B6/00

CPC分类号： A61B6/481 ,  A61B6/02 ,  A61B6/4085 ,  A61B6/4405 ,  A61B6/4476 ,  A61B6/469 ,  A61B6/482 ,  A61B6/486 ,  A61B6/503 ,  A61B6/504 ,  A61B6/507 ,  A61B6/5288 ,  A61B6/545 ,  A61B34/20 ,  A61B2576/023 ,  A61M5/007 ,  G01N2223/419 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2207/30048 ,  G06T2211/404 ,  G06T2211/412

摘要： A method and system is disclosed for acquiring image data of a subject. The image data can be collected with an imaging system having a detector able to move relative to the subject. A contrast agent can be injected into the subject and image data can be acquired with the contrast agent in various phases of the subject. A volumetric model of multiple phases can be reconstructed selected reconstruction techniques.

公开(公告)号：EP3264985A4

公开(公告)日：2018-04-18

申请号：EP15884090

申请日：2015-12-10

申请人： SAMSUNG ELECTRONICS CO LTD

发明人： LEE KYOUNG YONG ,  LEE DUHGOON ,  MIN BAEG GI

IPC分类号： A61B6/00 ,  A61B6/03 ,  G06T11/00

CPC分类号： A61B6/5288 ,  A61B6/032 ,  A61B6/486 ,  A61B6/5264 ,  G06T7/0012 ,  G06T11/003 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2211/412

摘要： A tomography imaging apparatus is provided, including: a data acquisition unit configured to acquire a plurality of partial data respectively corresponding to a plurality of consecutive angular sections by performing a tomography scan on a moving object; and an image processing unit configured to measure global motion of the object and motion of a first region in the object based on the plurality of partial data, acquire first information representing motion of the object by reflecting the global motion in the motion of the first region, and reconstruct a final tomography image representing the object based on the first information.

公开(公告)号：EP1636756B1

公开(公告)日：2018-04-04

申请号：EP04755716.0

申请日：2004-06-18

申请人： Merge CAD Inc

发明人： WOOD, Chris, H. ,  NIEMEYER, Tanya, L.

IPC分类号： G06T7/00 ,  G06T7/20

CPC分类号： A61B6/481 ,  A61B6/032 ,  A61B6/5264 ,  G01R33/563 ,  G06T7/0016 ,  G06T7/20 ,  G06T7/30 ,  G06T11/005 ,  G06T2207/30004 ,  G06T2211/412

摘要： In one embodiment, an adaptive medical image registration procedure includes a motion estimation procedure involving estimating or determining an amount of patient or tissue motion along a set of axes; an evaluation procedure involving evaluating an estimated amount of motion relative to a correction threshold; and a correction procedure involving performing a two dimensional image resampling, a three dimensional image resampling, or possibly avoiding an image resampling based upon a relationship between an estimated amount of motion and the correction threshold. Axes considered by a motion estimation procedure may include an axis of lowest image resolution, and the correction threshold may have a value given by a fraction of a lowest image resolution.

公开(公告)号：EP3280331A1

公开(公告)日：2018-02-14

申请号：EP16776822.5

申请日：2016-04-05

申请人： Samsung Electronics Co., Ltd.

发明人： YOO, Sang-wook ,  NARAYANAN, Ajay ,  RIFU, Toshihiro ,  LEE, Gun-woo ,  YI, Jong-hyon

IPC分类号： A61B6/00 ,  A61B6/03

CPC分类号： G06T11/006 ,  G06T5/003 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2207/20201 ,  G06T2211/412

摘要： A tomography apparatus includes a data acquirer configured to obtain a first partial image and a second partial image of an object based on data that is obtained respectively at a first angular section corresponding to a first time and at a second angular section corresponding to a second time during a tomography scan of the object that is moving, a controller configured to determine first information indicating a motion amount of the object in a first area of an entire image based on the first partial image and the second partial image, and determine second information indicating a degree of blur of a point included in the object in the first area based on the first information, and an image processor configured to correct the first area based on the first information and the second information, and output a tomography image based on the corrected first area.

公开(公告)号：EP3161792B1

公开(公告)日：2017-10-25

申请号：EP15730463.5

申请日：2015-06-16

申请人： Koninklijke Philips N.V.

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

IPC分类号： G06T11/00 ,  A61B6/02

CPC分类号： G06T11/005 ,  A61B6/027 ,  A61B6/032 ,  A61B6/488 ,  A61B6/5205 ,  A61B6/5235 ,  G06T2211/412 ,  G06T2211/436

摘要： The invention relates to a CT imaging apparatus and a method for generating sectional images of an object such as a patient on a patient table. According to one embodiment, first projections (P) are generated along a first helical scanning path (Tr1) of a first X-ray source according to a sparse angular sampling scheme. Additional projections (Q1, Q2, R1) may dynamically be introduced along said first helical scanning path (Tr1) and/or along a second helical scanning path (Tr2) of an additional X-ray source based on the evaluation of previous projections (P1).

公开(公告)号：EP1965703B1

公开(公告)日：2017-06-07

申请号：EP06832175.1

申请日：2006-12-08

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips N.V.

发明人： GRAß, Michael ,  VON BERG, Jens ,  LORENZ, Cristian

IPC分类号： A61B6/03 ,  A61B6/00 ,  G06T11/00 ,  A61B5/00

CPC分类号： A61B6/032 ,  A61B5/7289 ,  A61B6/4085 ,  A61B6/503 ,  G06T11/005 ,  G06T2211/412

公开(公告)号：EP3143591A1

公开(公告)日：2017-03-22

申请号：EP15720993.3

申请日：2015-05-06

申请人： Agfa Healthcare ,  Universiteit Antwerpen

发明人： SIJBERS, Jan ,  CANT, Jeroen

IPC分类号： G06T11/00

CPC分类号： G06T11/006 ,  A61B6/5258 ,  G01N23/046 ,  G06T2211/412 ,  G06T2211/416 ,  G06T2211/424

摘要： A computerized tomographic image exposure and reconstruction method wherein an object is subjected to irradiation during a relative movement of a source of radiation, said object and a radiation detector and wherein a digital representation of the radiation image of said object is computed by applying a tomographic reconstruction algorithm to image data read out of the irradiated radiation detector. A number of projection images are generated, each of said projection images being generated by integrating X-ray beams continuously emitted during said relative movement through a predefined movement path, and the created projection images are modeled in a tomographic reconstruction algorithm.

摘要翻译： 一种计算机断层图像曝光和重建方法，其中物体在辐射源的相对运动期间经受照射，所述物体和辐射检测器，并且其中通过应用断层重建来计算所述物体的辐射图像的数字表示 算法来对照射的辐射探测器读出数据。 产生多个投影图像，通过将在所述相对移动期间连续发射的X射线束通过预定义的移动路径来生成每个所述投影图像，并且所创建的投影图像被建模在断层重建算法中。