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公开(公告)号：US20180174314A1
公开(公告)日：2018-06-21
申请号：US15574962
申请日：2016-06-17
发明人： Rolf Dieter BIPPUS , Sven KABUS , Michael GRASS
摘要： The invention relates to a registration apparatus (14) for registering images comprising a unit (11) for providing a first and a second image of an object, such that an image element of the first image at a respective position has been reconstructed by multiplying projection data values of rays traversing the image element with weights and by backprojecting the weighted projection data values, a unit (12) for providing a confidence map comprising for different positions in the first image confidence values being indicative of a likelihood that an image feature is caused by a structure of the object, the confidence value being calculated as a sum of a function, which depends on the respective weight, over the rays traversing the respective image element, and a unit (13) for determining a transformation for registering the first and second image to each other under consideration of the confidence map.
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公开(公告)号：US20210162234A1
公开(公告)日：2021-06-03
申请号：US16770676
申请日：2018-12-17
发明人： 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分类号： A61N5/10
摘要： 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.
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公开(公告)号：US20150317792A1
公开(公告)日：2015-11-05
申请号：US14651276
申请日：2013-12-17
发明人： Rafael WIEMKER , Sven KABUS , Tobias KLINDER
CPC分类号： G06T7/0012 , G06T11/00 , G06T11/60 , G06T19/20 , G06T2200/24 , G06T2207/10072 , G06T2207/30064 , G06T2210/41 , G06T2219/028 , G06T2219/2012
摘要： A method includes determining a change in a volume of a tissue of interest located in at least two data sets between the at least two data sets. The at least two image data sets include a first image data set acquired at a first time and a second image data set acquired at a second time, and the first and second times are different. The method includes generating a rendering which includes a region in which the tissue of interest is located and indicia that indicates a magnitude of the change across the region. The region is superimposed over the rendering, which is generated based on at least one of the at least two image data sets, and linked to a corresponding image respectively in the at least two image data sets including voxels representing tissue of interest. The method includes visually presenting the rendering in a graphical user interface.
摘要翻译： 一种方法包括确定位于至少两个数据集之间的至少两个数据集中的感兴趣组织的体积变化。 所述至少两个图像数据组包括在第一时间获取的第一图像数据集和在第二时间获取的第二图像数据集，并且所述第一和第二时间是不同的。 该方法包括生成包括感兴趣的组织所处的区域和指示该区域的变化幅度的标记的描绘。 所述区域叠加在基于所述至少两个图像数据集中的至少一个图像数据集之后生成的再现，并且分别在包括表示感兴趣的组织的体素的至少两个图像数据集中的相应图像上链接。 该方法包括在图形用户界面中可视地呈现呈现。
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公开(公告)号：US20190143147A1
公开(公告)日：2019-05-16
申请号：US16172958
申请日：2018-10-29
发明人： Alfonso Agatino ISOLA , Rolf Jürgen WEESE , Christoph NEUKIRCHEN , Steffen RENISCH , Hrishikesh Narayanrao DESHPANDE , Heinrich SCHULZ , Sven KABUS , Stéphane ALLAIRE , Maria Luiza BONDAR
IPC分类号： A61N5/10
CPC分类号： A61N5/1075 , A61N5/103 , A61N5/1031 , A61N5/1077 , A61N2005/1041 , A61N2005/1074 , G16H20/40
摘要： The invention relates to a system and a method for evaluating a treatment plan for an external radiation therapy treatment, the treatment plan comprising parameters for controlling an external radiation therapy apparatus during the treatment. The system comprises a database storing historic treatment plans and storing for each historic treatment plan a quality parameter indicative of whether a deviation between a planned dose distribution and a measured dose distribution resulting from an execution of the treatment plan is within an acceptable limit. An evaluation unit determines a threshold value for each of a plurality of treatment plan metrics based on the historic treatment plans and the associated quality parameters. Further, the evaluation unit calculates a value of each of the metrics for the treatment plan and compares the value of each of the metrics with the threshold value determined for the respective metric.
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公开(公告)号：US20160331341A1
公开(公告)日：2016-11-17
申请号：US15112439
申请日：2014-12-12
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.
摘要翻译： 一种方法包括从感兴趣的移动结构的扫描中获取投影数据。 该方法还包括重建投影数据，产生第一图像数据。 该方法还包括识别投影的子集。 该方法还包括重建子集投影数据，产生第二图像数据。 该方法还包括基于第一图像数据识别感兴趣的移动结构所在的区域。 该方法还包括基于第二图像数据识别所识别的区域中的感兴趣的移动结构的位置。
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公开(公告)号：US20230214974A1
公开(公告)日：2023-07-06
申请号：US18018628
申请日：2021-08-01
发明人： Sven KABUS , Rolf Dieter BIPPUS , Heike CAROLUS , Dennis HEIJTEL , Matthijs KRUIS , Amy PERKINS , Steffen RENISCH , Andre Frank SALOMON
CPC分类号： G06T5/50 , G06T11/005 , G06T7/11 , G06T5/002 , G06T2207/20021 , G06T2207/20212 , G06T2207/30004 , G06T2210/41 , G06T2207/10104 , G06T2207/10108 , G06T2207/10081
摘要： A method and system are provided for reconstructing a motion-compensated nuclear image of a subject, as well as an arrangement for method. The reconstruction method comprises receiving nuclear image data the acquiring a nuclear image, and a computer program for carrying out the for multiple motion states, reconstructing the data into an image for each motion state, and calculating a deformation vector field for each state for mapping the image onto a reference motion state. Calculating the deformation vector field comprises providing an initial vector field, defining at least one rigid region of the subject, incorporating that rigid region into the initial vector field, and calculating the deformation vector field with the incorporated rigid region. The method further comprises mapping the reconstructed image of each motion state onto the reference state using the deformation vector fields; and combining the mapped images into a motion-compensated nuclear image.
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公开(公告)号：US20180218506A1
公开(公告)日：2018-08-02
申请号：US15315198
申请日：2015-05-04
发明人： Heike CAROLUS , Sven KABUS , Holger SCHMITT
CPC分类号： G06T7/33 , G06T7/0012 , G06T2207/10072 , G06T2207/20101 , G06T2207/30004
摘要： The present invention relates to a device and method for registration of two images. To increase the accuracy of the registration the device comprises an input unit (126) for receiving one or more pairs of negative landmarks, which are indicated in the two images, a pair comprising two negative landmarks, one in each image, which structures are not identical and should not be aligned by the registration. Further, a registration unit (128) is provided for performing a registration of the two images by determining a transformation for transforming at least one of the images for registering it with the other image and determining a spacing measure of the distance between a first landmark in the transformed image and a second landmark in the other image, wherein the transformation is determined such that the spacing measure for a first landmark and a second landmark of at least one pair of negative landmarks is above a first distance threshold, whereby the negative landmarks are taken into account in the registration but are not aligned by the registration.
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公开(公告)号：US20160019680A1
公开(公告)日：2016-01-21
申请号：US14772831
申请日：2014-03-28
发明人： Sven KABUS
CPC分类号： G06T5/008 , G06T7/30 , G06T11/003 , G06T2207/10072 , G06T2207/20192 , G06T2207/20208 , G06T2207/30004 , G06T2211/40
摘要： A method includes increasing a dynamic range of a first sub-range (410, 510) of pixel intensity values of at least two images based on an intensity map, thereby creating at least two modified images, determining a deformation vector field between the at least two modified images, and registering the at least two images based on the deformation vector field. An image processing system (118) includes a processor (120) and a memory (122) encoded with at least one image registration instruction (124). The processor executes the at least one image registration instruction, which causes the processor to: increase a dynamic range of a first sub-range of pixel intensity values of at least two images based on an intensity map, thereby creating at least two modified images; determine a deformation vector field between the at least two modified images, and register the at least two images based on the deformation vector field.
摘要翻译： 一种方法包括基于强度图增加至少两个图像的像素强度值的第一子范围（410,510）的动态范围，由此创建至少两个修改图像，确定至少两个图像之间的变形矢量场 两个修改图像，并且基于变形矢量场登记至少两个图像。 图像处理系统（118）包括用至少一个图像注册指令（124）编码的处理器（120）和存储器（122）。 处理器执行至少一个图像注册指令，其使处理器基于强度图增加至少两个图像的像素强度值的第一子范围的动态范围，从而创建至少两个修改的图像; 确定所述至少两个修改图像之间的变形矢量场，并且基于所述变形矢量场来登记所述至少两个图像。
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公开(公告)号：US20200337666A1
公开(公告)日：2020-10-29
申请号：US16761173
申请日：2018-11-07
发明人： Sven KABUS , Andre Frank SALOMON
摘要： The invention relates to a system and a method for assisting in attenuation correction of gated PET data of a moving object (2). In the system, an evaluation unit (15) is configured to (i) receive a CT image of the object (2) and to segment the CT image into a plurality of CT sub-images, each CT sub-image correspond to an axial segment of an imaged volume, (ii) to determine for each CT sub-image a gate including PET data having a greatest correspondence with the CT sub-image, (iii) to construct, for each CT sub-image, a PET sub-image from the PET data included in the gate determined for the CT sub-image, the PET sub-image substantially corresponding to the same axial segment of the imaged volume as the CT sub-image, and (iv) to combine the PET sub-images to form a PET reference image of the object (2).
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公开(公告)号：US20180165819A1
公开(公告)日：2018-06-14
申请号：US15737325
申请日：2016-06-30
发明人： Heike CAROLUS , Sven KABUS , Tobias KLINDER , Holger SCHMITT
摘要： The invention relates to a device for processing CT imaging data, comprising a processing unit, which is configured to receive a plurality of sets of CT imaging data recorded at different imaging positions and at different points in time. Furthermore, the processing device is configured to provide a plurality of auxiliary sets of CT imaging data, each auxiliary set of CT imaging data comprising processed image data allocated to spatial positions inside a respective spatial section of the object space, wherein a given one of the spatial sections contains those spatial positions which are covered by those sets of CT imaging data acquired at a respective one of the imaging positions, and to generate the processed image data for a given spatial position using those of the sets of CT imaging data acquired at the respective one of the imaging positions.
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