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1. 发明申请

WO2012168813A1 DOSE-OPTIMIZED PROTOCOL FOR AC AND LOCALIZATION ON HYBRID SCANNERS 审中-公开
标题翻译：用于混合扫描仪交流和本地化的剂量优化协议
公开(公告)号：WO2012168813A1
公开(公告)日：2012-12-13
申请号：PCT/IB2012/052581
申请日：2012-05-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , SOWARDS-EMMERD, David , BREDNO, Joerg , HANSIS, Eberhard, Sebastian , PREVRHAL, Sven
发明人： SOWARDS-EMMERD, David , BREDNO, Joerg , HANSIS, Eberhard, Sebastian , PREVRHAL, Sven
IPC分类号： A61B6/03 , A61B6/00
CPC分类号： G06T11/005 , A61B6/032 , A61B6/037 , A61B6/5205 , A61B6/5217 , A61B6/5235 , G06T11/008
摘要： A hybrid imaging system including a first imaging system configured to acquire low resolution anatomical data of a first field of view of an anatomical structure. A second imaging system is configured to acquire functional data of the first field of view of the anatomical structure. A reconstruction processor is configured to reconstruct the functional data based on attenuation data into an attenuation corrected image. In response to the attenuation corrected image showing regions of interest, with the first imaging system or another imaging system acquiring high resolution data of one or more portions of the first field of view containing the regions of interest. The reconstruction processor reconstructs the high resolution anatomical data into one or more high resolution images of the regions of interest.
摘要翻译：一种混合成像系统，包括被配置为获取解剖结构的第一视野的低分辨率解剖学数据的第一成像系统。第二成像系统被配置为获取解剖结构的第一视野的功能数据。重构处理器被配置为基于衰减数据将功能数据重建成衰减校正图像。响应于示出感兴趣区域的衰减校正图像，利用第一成像系统或另一成像系统获取包含感兴趣区域的第一视野的一个或多个部分的高分辨率数据。重构处理器将高分辨率解剖数据重建成感兴趣区域的一个或多个高分辨率图像。

2. 发明申请

WO2013050941A3 DATA-DRIVEN OPTIMIZATION OF EVENT ACCEPTANCE/REJECTION LOGIC 审中-公开
公开(公告)号：WO2013050941A3
公开(公告)日：2013-04-11
申请号：PCT/IB2012/055297
申请日：2012-10-03
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： PREVRHAL, Sven , HANSIS, Eberhard, Sebastian , WIENER, Jason, Stephen , BREDNO, Joerg , SOWARDS-EMMERD, David , SHAO, Lingxiong
IPC分类号： G01T1/29
摘要： In Positron Emission Tomography, a time window (260) and an energy window (225) are dynamically adjusted, based on an attenuation map, count rate, clinical application, discrimination tailoring, and/or offline discrimination tailoring. Detected radiation events are filtered using the dynamically adjusted energy and time windows into scattered events, random events, and true events. The true events are input to image reconstruction, correction, and error analysis.

3. 发明申请

WO2012073151A3 DIAGNOSTIC IMAGE FEATURES CLOSE TO ARTIFACT SOURCES 审中-公开
公开(公告)号：WO2012073151A3
公开(公告)日：2012-06-07
申请号：PCT/IB2011/055233
申请日：2011-11-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BREDNO, Joerg , PREVRHAL, Sven , HANSIS, Eberhard, Sebastian , SOWARDS-EMMERD, David
发明人： BREDNO, Joerg , PREVRHAL, Sven , HANSIS, Eberhard, Sebastian , SOWARDS-EMMERD, David
IPC分类号： G06T5/50 , G06T11/00
摘要： When correcting for artifacts on an attenuation map caused by an artifact source in a computed tomography image, nuclear images are reconstructed two or more times, each time using a different correction technique or uncorrected attenuation data. Corresponding voxels in the reconstructed images are compared to identify local areas that change, i.e., are fragile and therefore low-confidence, and areas that do not vary or exhibit little variance among the plurality of reconstructed images and are thus accorded a higher confidence. The reconstructed nuclear image is overlaid with color encoding indicative of the amount of confidence accorded to each voxel value obtained by attenuation-corrected tomographic reconstruction.

4. 发明申请

WO2012153262A1 LIST MODE DYNAMIC IMAGE RECONSTRUCTION 审中-公开
标题翻译：列表模式动态图像重构
公开(公告)号：WO2012153262A1
公开(公告)日：2012-11-15
申请号：PCT/IB2012/052273
申请日：2012-05-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PREVRHAL, Sven , BREDNO, Joerg , PERKINS, Amy , OLIVIER, Patrick
发明人： PREVRHAL, Sven , BREDNO, Joerg , PERKINS, Amy , OLIVIER, Patrick
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G06T7/20 , G06T11/006 , G06T2211/412
摘要： A nuclear imaging apparatus (8) acquires nuclear imaging data comprising events wherein each event records at least spatial localization information and a timestamp for a nuclear decay event. An event-preserving image reconstruction module (22) reconstructs the nuclear imaging data using an event-preserving reconstruction algorithm to generate an image represented as an event-preserving reconstructed image dataset (I D ) comprising for each event the timestamp and at least one spatial voxel assignment. One or more structures are identified in the image and independent motion compensation is performed for each structure. In one approach, an events group is identified corresponding to the structure comprising events assigned to the structure by the event-preserving reconstructed image dataset; a time binning of the events of each events group is optimized based on a motion profile for the structure; time bin images are generated; and the structure is spatially registered in the time bin images.
摘要翻译：核成像设备（8）获取包括事件的核成像数据，其中每个事件至少记录空间定位信息和核衰变事件的时间戳。事件保存图像重建模块（22）使用事件保留重建算法来重构核成像数据，以生成表示为事件保留重建图像数据集（ID）的图像，其包括针对每个事件的时间戳和至少一个空间体素分配。在图像中识别一个或多个结构，并且对每个结构执行独立的运动补偿。在一种方法中，通过事件保存重建图像数据集来识别对应于包括分配给该结构的事件的结构的事件组; 基于结构的运动曲线优化每个事件组的事件的时间合并; 生成时间段图像; 并且该结构被空间地记录在时间段图像中。

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