公开(公告)号：US20210162234A1

公开(公告)日：2021-06-03

申请号：US16770676

申请日：2018-12-17

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Rolf Jürgen WEESE ,  Steffen RENISCH ,  Hrishikesh Narayanrao DESHPANDE ,  Heinrich SCHULZ ,  Sven KABUS ,  Stéphane ALLAIRE ,  Alfonso Agatino ISOLA ,  Christoph NEUKIRCHEN ,  Maria Luiza BONDAR ,  Jens WIEGERT

IPC: A61N5/10

Abstract: The invention relates to a system for assisting in evaluating a contour of an anatomic structure (22) with respect to a dose distribution corresponding to a treatment plan for a radiation therapy treatment of a patient. The system comprises an evaluation unit particularly configured to evaluate the dose distribution in varying distances from the contour of the anatomic structure (22) to determine at least one point where the evaluated dose distribution fulfills a predetermined condition, and to determine the distance between the at least one point and the contour and/or to visualize the at least one point to a user of the system.

公开(公告)号：US20220193448A1

公开(公告)日：2022-06-23

申请号：US17551642

申请日：2021-12-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Rolf Juergen WEESE ,  Alfonso Agatino ISOLA ,  Maria Luiza BONDAR ,  Torbjoern VIK ,  Nick FLAESCHNER ,  Jens WIEGERT ,  Harald Sepp HEESE

IPC: A61N5/10

Abstract: The invention relates a system for assisting in planning a radiation therapy treatment provided using a treatment plan comprising irradiation parameters for controlling a delivery of radiation. The system is configured to (i) receive a first dose distribution, (ii) obtain a first objective function, which depends upon at least one parameter and a dose distribution, (iii) determine a first value of the parameter such that the first objective function fulfills a predefined criterion when being evaluated for the first value of the parameter and for a second dose distribution derived from the first dose distribution, (iii) provide the first objective function in connection with the first value of the at least one parameter to a user for modifying the first objective function to generate a second objective function, and (v) determine the treatment plan using the second objective function. Further, the invention relates to a corresponding method and computer program.

公开(公告)号：US20190251693A1

公开(公告)日：2019-08-15

申请号：US16332859

申请日：2017-09-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christian BUERGER ,  Jens WIEGERT ,  Steffen RENISCH

IPC: G06T7/149 ,  G06T7/174 ,  G06T7/12

CPC classification number: G06T7/149 ,  A61B6/00 ,  G06T7/12 ,  G06T7/174 ,  G06T2207/20092 ,  G06T2207/20101 ,  G06T2207/30004 ,  G06T2207/30196

Abstract: The present invention relates to an apparatus for adaptive contouring of a body part. It is described to provide (210) at least one image; wherein, the at least one image comprises a first image comprising image data of a body part. An initial automatic model based segmentation of image data of the body part in the first image is determined (220). Final segmentation data of the body part is determined (230) in response to a modification of the initial automatic model based segmentation. An updated model based segmentation can be applied (240) on the basis of the initial automatic model based segmentation and the final segmentation data.

公开(公告)号：US20160007948A1

公开(公告)日：2016-01-14

申请号：US14377202

申请日：2013-02-18

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Alfonso Agatino ISOLA ,  Eberhard Sebastian HANSIS ,  Jens WIEGERT

IPC: A61B6/00 ,  G06T7/00 ,  G06T5/00 ,  G06K9/52 ,  G06K9/62 ,  G06T7/20 ,  G06T11/00 ,  A61B6/03 ,  G06K9/46

CPC classification number: A61B6/5264 ,  A61B6/032 ,  A61B6/46 ,  A61B6/5211 ,  A61B6/5258 ,  G06K9/46 ,  G06K9/4604 ,  G06K9/52 ,  G06K9/6215 ,  G06K9/6267 ,  G06K2009/4666 ,  G06T5/00 ,  G06T5/005 ,  G06T7/0012 ,  G06T7/11 ,  G06T7/187 ,  G06T7/246 ,  G06T11/005 ,  G06T11/008 ,  G06T2207/10081 ,  G06T2207/20182 ,  G06T2207/20201 ,  G06T2207/30008

Abstract: A method and system for reducing localized artifacts in imaging data, such as motion artifacts and bone streak artifacts, are provided. The method includes segmenting the imaging data to identify one or more suspect regions in the imaging data near which localized artifacts are expected to occur, defining an artifact-containing region of interest in the imaging data around each suspect region, and applying a local bias field within the artifact-containing regions to correct for the localized artifacts.

Abstract translation: 提供了用于减少成像数据中的局部伪像的方法和系统，例如运动伪影和骨条纹伪影。 该方法包括分割成像数据以识别成像数据中期望发生局部伪像的一个或多个可疑区域，在每个可疑区域周围的成像数据中定义包含伪像的区域，以及施加局部偏置场 在包含伪像的区域内，以校正本地化的伪像。

公开(公告)号：US20160206263A1

公开(公告)日：2016-07-21

申请号：US14916592

申请日：2014-09-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Heike RUPPERTSHOFEN ,  Cristian LORENZ ,  Jens WIEGERT ,  Peter PRINSEN ,  Roland PROKSA

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/488 ,  A61B6/032 ,  A61B6/10 ,  A61B6/14 ,  A61B6/5229 ,  A61B6/5235 ,  A61B6/5247 ,  A61B6/542 ,  A61C9/0046 ,  A61C9/0053 ,  A61C9/006 ,  A61C9/0086 ,  A61N5/1031 ,  G06F19/00 ,  G06F19/321 ,  G06T7/174 ,  G06T7/30 ,  G06T19/006 ,  G06T2207/10081 ,  G06T2207/20221 ,  G06T2210/41

Abstract: A method for extending initial image data of a subject for dose estimation includes obtaining first image data of the subject for dose calculation, wherein the first image data has a first field of view. The method further includes obtaining second image data for extending the field of view of the first image data. The second image data has a second field of view that is larger than the first field of view. The method further includes extending the first field of view based on the second image data, producing extended image data.

Abstract translation: 用于扩展用于剂量估计的对象的初始图像数据的方法包括获得用于剂量计算的对象的第一图像数据，其中第一图像数据具有第一视场。 该方法还包括获得用于扩展第一图像数据的视场的第二图像数据。 第二图像数据具有大于第一视场的第二视场。 该方法还包括基于第二图像数据扩展第一视场，产生扩展图像数据。

公开(公告)号：US20220203124A1

公开(公告)日：2022-06-30

申请号：US17558637

申请日：2021-12-22

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Nick FLAESCHNER ,  Harald Sepp HEESE ,  Maria Luiza BONDAR ,  Kay SUN ,  Jens WIEGERT ,  Rolf Juergen WEESE

IPC: A61N5/10

Abstract: The invention relates to a planning apparatus for planning a radiation therapy. A medical image, in which a target to be irradiated is indicated, is reformatted based on ray geometries to be used during the radiation therapy to be planned, resulting in several reformatted medical images. Radiation therapy parameters being indicative of intensities of rays 5 to be used for irradiating a target 4 are determined based on the reformatted medical images by using a neural network unit. This allows to determine high quality radiation therapy parameters and hence allows for an improved planning of a radiation therapy. In particular, radiation and absorptions physics can be captured better, which can lead to the improved quality.

公开(公告)号：US20180368785A1

公开(公告)日：2018-12-27

申请号：US16062150

申请日：2016-12-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Jens WIEGERT ,  Bernd MENSER ,  Peter PRINSEN

IPC: A61B6/03 ,  A61B6/00 ,  G06T7/00

Abstract: Method for estimating radiation dose received by a tissue of interest during an imaging scan comprising: i. obtaining image data of a body region including the tissue of interest, ii. sub-dividing the image data into axial slices, comprising tissue axial slices and non-tissue axial slices, iii. determining a net amount of radiation dose emitted or received by each axial slice by combining scan parameters of each axial slice with pre-calculated amounts of radiation dose, iiii summing the net amounts of radiation dose of all the tissue axial slices to obtain a tissue dose.

公开(公告)号：US20160035086A1

公开(公告)日：2016-02-04

申请号：US14766142

申请日：2014-04-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Peter PRINSEN ,  Jens WIEGERT ,  Cristian LORENZ ,  Heike RUPPERTSHOFEN

IPC: G06T7/00 ,  A61B6/00 ,  A61B6/03 ,  G06T11/00 ,  G06T17/00

CPC classification number: G06T7/0012 ,  A61B6/03 ,  A61B6/032 ,  A61B6/5294 ,  A61B6/542 ,  A61N2005/1034 ,  G06T11/003 ,  G06T17/00 ,  G06T2207/10072

Abstract: The invention relates to an apparatus (18) for calculating an x-ray dose distribution within an object for a computed tomography examination. A primary flux determination unit (15) determines firstly a primary flux distribution within the object, wherein then this determined primary flux distribution is used as an initial total flux distribution by a total flux determination unit (16) while applying a six-flux model algorithm. This allows the determination of the total flux distribution to start with a relatively good first approximation of the total flux distribution such that the six-flux model algorithm can determine the total flux distribution very fast. The determined total flux distribution is finally used by a dose distribution determination unit (17) for determining a total dose distribution. The apparatus allows therefore for a very fast determination of x-ray dose distributions for computed tomography examinations.

Abstract translation: 本发明涉及一种用于计算用于计算机断层摄影检查的对象内的x射线剂量分布的装置（18）。 主要通量确定单元（15）首先确定物体内的主要通量分布，其中随后将该确定的主要通量分布用作总通量确定单元（16）的初始总通量分布，同时施加六通量模型算法 。 这允许总通量分布的确定从总通量分布的相对良好的第一近似开始，使得六通量模型算法可以非常快速地确定总通量分布。 确定的总通量分布最终由剂量分布确定单元（17）用于确定总剂量分布。 因此，该装置可以非常快速地确定计算机断层扫描检查的x射线剂量分布。