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1. 发明申请

WO9920169A3 DOSE MASKING FEATURE FOR BNCT RADIOTHERAPY PLANNING 审中-公开
标题翻译：用于BNCT放射治疗计划的剂量掩蔽功能
公开(公告)号：WO9920169A3
公开(公告)日：1999-07-01
申请号：PCT/US9822579
申请日：1998-10-23
申请人： LOCKHEED MARTIN IDAHO TECH CO
发明人： COOK JEREMY L , WESSOL DANIEL E , WHEELER FLOYD J
IPC分类号： A61N5/10 , G06F19/00 , A61B5/05
CPC分类号： A61N5/1031 , A61N5/1042 , A61N2005/109 , G16H50/50
摘要： A system for displaying (8) an accurate model of isodoses to be used in radiotherapy so that appropriate planning can be performed prior to actual treatment on a patient. The nature of the simulation of the radiotherapy planning for BNCT and Fast Neutron Therapy, etc., requires that the doses be computed in the entire volume. The "entire volume" includes the patient and beam geometries as well as the air spaces in between. Isodoses derived from the computed doses will therefore extend into the air regions between the patient and beam geometries and thus depict the unrealistic possibility that radiation deposition occurs in regions containing no physical media. This problem is solved by computing the doses for the entire geometry and then masking the physical and air regions along with the isodose contours (24) superimposed over the patient image (12) at the corresponding plane. The user is thus able to mask out (remove) the contour lines (26) from the unwanted areas of the image (12) by selecting the appropriate contour masking region from the raster image (44).
摘要翻译：用于显示（8）用于放射治疗的准确的等剂量模型的系统，以便在对患者进行实际治疗之前进行适当的规划。 BNCT和快速中子治疗等的放射治疗计划模拟的性质要求在整个体积中计算剂量。 “整个体积”包括患者和梁的几何形状以及两者之间的空气间隙。因此，从计算出的剂量得出的等同物将延伸到患者和血管几何之间的空气区域，因此描绘了在不含物理介质的区域内发生辐射沉积的不切实际的可能性。通过计算整个几何形状的剂量，然后将物理和空气区域与在相应平面上叠加在患者图像（12）上的等剂量等值线（24）一起被掩盖来解决该问题。因此，用户能够通过从光栅图像（44）中选择适当的轮廓掩蔽区，来遮蔽（图形）图形（12）的不需要的区域（26）。

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