公开(公告)号：DE602004011834T2

公开(公告)日：2009-02-12

申请号：DE602004011834

申请日：2004-11-26

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： BUELOW THOMAS ,  GRASS MICHAEL ,  LORENZ CHRISTIAN ,  MANZKE ROBERT

IPC: G06T5/00

Abstract: Coronary artery segmentation is a crucial task in cardiac CT image processing. This is often a tedious task performed manually by an operator. According to the present invention, a method is provided which combines data from multiple cardiac phases during the segmentation process in order to deliver a complete and continuous coronary vessel tree. Advantageously, this may allow for an improved visualization and segmentation of vessels, for example, in coronary CTA.

公开(公告)号：DE602004002574D1

公开(公告)日：2006-11-09

申请号：DE602004002574

申请日：2004-02-10

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： GRASS MICHAEL ,  MANZKE ROBERT ,  KOEHLER THOMAS

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

公开(公告)号：DE602004015503D1

公开(公告)日：2008-09-11

申请号：DE602004015503

申请日：2004-12-01

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： MANZKE ROBERT ,  GRASS MICHAEL

IPC: A61B6/00 ,  A61B6/03

Abstract: The invention relates to a computer tomography method in which a bundle of rays passes through an object that is moving periodically, in particular a heart. During the acquisition of measured values, a movement signal dependent on the movement of the object is sensed. From this movement signal are determined periodically repeated phases of movement, after which a plurality of intermediate images of a region of the object are reconstructed, in particular at a low resolution, using measured values whose times of acquisition were situated in different phases of movement, thus enabling each intermediate image to be assigned to a phase of movement. The phase of movement in which the object moved least in the region is then identified by determining the intermediate image having the fewest motion artifacts. Finally, a computer tomographic image of the region is reconstructed, in particular with a high spatial resolution, from measured values whose times of acquisition were situated in the phase of movement in which there was the least movement by the object in said region.

公开(公告)号：DE602004011834D1

公开(公告)日：2008-03-27

申请号：DE602004011834

申请日：2004-11-26

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： BUELOW THOMAS ,  GRASS MICHAEL ,  LORENZ CHRISTIAN ,  MANZKE ROBERT

IPC: G06T5/00

Abstract: Coronary artery segmentation is a crucial task in cardiac CT image processing. This is often a tedious task performed manually by an operator. According to the present invention, a method is provided which combines data from multiple cardiac phases during the segmentation process in order to deliver a complete and continuous coronary vessel tree. Advantageously, this may allow for an improved visualization and segmentation of vessels, for example, in coronary CTA.

公开(公告)号：DE602004002574T2

公开(公告)日：2007-06-14

申请号：DE602004002574

申请日：2004-02-10

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： GRASS MICHAEL ,  MANZKE ROBERT ,  KOEHLER THOMAS

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

公开(公告)号：WO2006067671A3

公开(公告)日：2006-09-14

申请号：PCT/IB2005054198

申请日：2005-12-13

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  FORTHMANN PETER ,  KOEHLER THOMAS ,  MANZKE ROBERT ,  GRASS MICHAEL ,  ZIEGLER ANDY

Inventor： FORTHMANN PETER ,  KOEHLER THOMAS ,  MANZKE ROBERT ,  GRASS MICHAEL ,  ZIEGLER ANDY

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/541 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/503

Abstract: A method of recording images of the heart in computed tomography is provided in which, in order to prevent movement artifacts, the images are reconstructed on the basis of similar movement states of the heart and different radiation intensities are used for different movement states. During recording operation low-resolution images are continually reconstructed from the recorded data. The movement state of the heart is determined from the low- resolution images, preferably by comparing successive images. During the desired heart phase with little heart movement the power of the X-ray tube is increased. A high-resolution reconstruÌtion is carried out retrospectively from data recorded with a high radiation intensity in similar movement states with little heart movement. Also disclosed are a CT apparatus and a computer program for carrying out the method.

Abstract translation: 提供了一种在计算机断层摄影中记录心脏图像的方法，其中为了防止运动伪像，基于心脏的相似运动状态重建图像，并且不同的辐射强度用于不同的运动状态。 在记录操作期间，从记录的数据中连续重建低分辨率图像。 优选地，通过比较连续图像，从低分辨率图像确定心脏的移动状态。 在期望的心脏移动期间，X射线管的功率增加。 从具有较小的心脏运动的相似运动状态下以高辐射强度记录的数据追溯地进行高分辨率重建。 还公开了一种用于执行该方法的CT装置和计算机程序。

公开(公告)号：WO2006085253A2

公开(公告)日：2006-08-17

申请号：PCT/IB2006050374

申请日：2006-02-06

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  MANZKE ROBERT ,  GRASS MICHAEL

Inventor： MANZKE ROBERT ,  GRASS MICHAEL

IPC: A61B6/03

CPC classification number: A61B6/5217 ,  A61B6/027 ,  A61B6/032 ,  A61B6/5288

Abstract: A computer tomography apparatus (100) for examination of a moving object of interest (130), comprising an electromagnetic radiation source (104) adapted to emit electromagnetic radiation to the object of interest (130) and adapted to rotate around the object of interest (130), detecting elements (123) adapted to detect electromagnetic radiation emitted by the electromagnetic radiation source (104) and passed through the object of interest (130), adapted to rotate around the object of interest (130) and adapted to detect first data related to a first motion interval of the object of interest (130) and to detect second data related to a second motion interval of the object of interest (130), and a determination unit (118) adapted to determine images of the structure of the object of interest (130) in the first motion interval and in the second motion interval and to determine motion information concerning the object of interest (130) between the first motion interval and the second motion interval based on an analysis of the determined images.

Abstract translation: 1。一种用于检查感兴趣移动物体（130）的计算机断层摄影装置（100），包括适于向感兴趣物体（130）发射电磁辐射并且适于围绕感兴趣物体旋转的电磁辐射源（104） 130）;适于检测由所述电磁辐射源（104）发射并穿过所述感兴趣对象（130）的电磁辐射的检测元件（123），适于围绕所述感兴趣对象（130）旋转并适于检测第一数据 （130）的第一运动区间相关联并且检测与所述感兴趣对象（130）的第二运动区间有关的第二数据;以及确定单元（118），适于确定所述感兴趣对象（130）的所述结构的图像 在第一运动区间和第二运动区间中感兴趣对象（130），并且在第一运动区间和第二运动区间之间确定关于感兴趣对象（130）的运动信息 n间隔基于所确定的图像的分析。

公开(公告)号：WO2013068877A3

公开(公告)日：2013-10-24

申请号：PCT/IB2012055968

申请日：2012-10-29

Applicant: KONINKL PHILIPS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： GRASS MICHAEL ,  MANZKE ROBERT ,  CHAN RAYMOND

IPC: G01T1/161

CPC classification number: A61N5/1067 ,  A61B6/12 ,  A61N5/1071 ,  G01T1/023 ,  G01T1/161

Abstract: The present invention relates to a sensor device for detecting dose of radiation received at the sensor device, the sensor device comprising a flexible body having a cross- section being comparatively small relative to the length of the device, a cladding at the flexible body, the cladding converting incoming radiation into visible light, and an optical shape sensing device disposed within the flexible body and configured to determine a shape of the flexible instrument relative to a reference, the shape sensing device configured to collect information based on its configuration to map an intraluminal structure during a procedure. The present invention further relates to a radiation therapy system including such a sensor device and a method of operating a radiation therapy system including such a sensor device.

Abstract translation: 传感器装置技术领域本发明涉及一种用于检测在传感器装置处接收到的辐射的剂量的传感器装置，该传感器装置包括具有相对于装置的长度相对小的横截面的柔性主体，在柔性主体处的包层， 包层将入射辐射转换成可见光;以及光学形状感测装置，设置在所述柔性主体内并且被配置为确定所述柔性装置相对于基准的形状，所述形状感测装置配置为基于其配置收集信息以映射腔内 程序中的结构。 本发明还涉及一种包括这种传感器装置的放射治疗系统和一种操作包括这种传感器装置的放射治疗系统的方法。

公开(公告)号：WO2005057491A8

公开(公告)日：2006-08-03

申请号：PCT/IB2004052569

申请日：2004-11-26

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  BUELOW THOMAS ,  GRASS MICHAEL ,  LORENZ CHRISTIAN ,  MANZKE ROBERT

Inventor： BUELOW THOMAS ,  GRASS MICHAEL ,  LORENZ CHRISTIAN ,  MANZKE ROBERT

IPC: G06T5/00

CPC classification number: G06T7/11 ,  G06T2207/10081 ,  G06T2207/30101

Abstract: Coronary artery segmentation is a crucial task in cardiac CT image processing. This is often a tedious task performed manually by an operator. According to the present invention, a method is provided which combines data from multiple cardiac phases during the segmentation process in order to deliver a complete and continuous coronary vessel tree. Advantageously, this may allow for an improved visualization and segmentation of vessels, for example, in coronary CTA.

Abstract translation: 冠状动脉分割是心脏CT图像处理中的关键任务。 这通常是由操作员手动执行的繁琐的任务。 根据本发明，提供了一种在分割过程中组合来自多个心脏相的数据以递送完整且连续的冠状动脉血管树的方法。 有利地，这可以允许例如在冠状动脉CTA中改善血管的可视化和分割。