首页> 外国专利> Retrospectively determining the center of rotation of a scintillation camera detector from SPECT data acquired during a nuclear medicine study

Retrospectively determining the center of rotation of a scintillation camera detector from SPECT data acquired during a nuclear medicine study

机译:根据核医学研究中获得的SPECT数据回顾性确定闪烁照相机探测器的旋转中心

摘要

Two conjugate views of a patient are acquired during a SPECT nuclear medicine study. A common anatomical feature is identified in the views. Based on the differences in location of the common feature in the views, the center of rotation ("COR") of the detector during the study can be calculated after the study has been concluded. This COR can then be used during image reconstruction to determine the location at which each filtered view is backprojected. The resulting SPECT data is of higher quality because COR artifacts in the reconstructed image are reduced or eliminated.
机译:在SPECT核医学研究中获得了患者的两个共轭视图。视图中标识了一个常见的解剖特征。基于视图中共同特征的位置差异,可以在研究结束后计算研究期间检测器的旋转中心(“ COR”)。然后,可以在图像重建期间使用此COR来确定每个过滤后的视图的反投影位置。由于减少或消除了重建图像中的COR伪像,因此生成的SPECT数据具有更高的质量。

著录项

  • 公开/公告号US5528042A

    专利类型

  • 公开/公告日1996-06-18

    原文格式PDF

  • 申请/专利权人 SIEMENS MEDICAL SYSTEMS INC.;

    申请/专利号US19950490213

  • 发明设计人 ERIC G. HAWMAN;

    申请日1995-06-14

  • 分类号G01T1/166;

  • 国家 US

  • 入库时间 2022-08-22 03:38:22

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