公开(公告)号：EP0984272A3

公开(公告)日：2004-01-07

申请号：EP99306326.2

申请日：1999-08-10

申请人： SIEMENS MEDICAL SYSTEMS, INC.

发明人： Siochi, Ramon Alfredo Carvalho

IPC分类号： G01N23/04 ,  A61N5/10

CPC分类号： G21K1/025 ,  A61B6/027 ,  A61N5/1031 ,  A61N5/1042 ,  A61N5/1048 ,  A61N2005/1034 ,  A61N2005/1054 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

摘要： The present invention relates to a fast and accurate method for calculating fluence of a calculation plane (210) over a patient. According to an embodiment of the present invention, only a subset (560, 562) of the collimator leaves (104) are analyzed for the fluence calculation, thus reducing the number of calculations required. Additionally, pre-integrated values of scatter strips (520), associated with each point of the calculation plane (210), may be referenced in a lookup table (1010). The use of these pre-integrated values allows the avoidance of adding the fluence contribution of each square on the scattering plane (202). Rather, pre-calculated values of a subset (560, 562) of the scattering plane (202) (scatter strip (520)) may be referenced and combined, thus reducing the number of calculations required for a final scatter contribution to a point (500, 500a, 500b, 500c) on the calculation plane (210). Further, the thickness of the collimator leaves (104) is considered in the fluence calculation, thus providing a more accurate model for the scatter contributions of points on the scattering plane (202).

公开(公告)号：EP0817210A1

公开(公告)日：1998-01-07

申请号：EP97110600.0

申请日：1997-06-27

申请人： SIEMENS MEDICAL SYSTEMS, INC.

发明人： Siochi, Ramon Alfredo Carvalho ,  Hernandez-Guerra, Francisco Miguel

IPC分类号： G21K1/04

CPC分类号： A61N5/10 ,  A61N5/1042 ,  A61N2005/1095 ,  G21F5/04 ,  G21K1/04 ,  G21Y2002/204 ,  G21Y2004/30 ,  G21Y2004/403

摘要： In a radiation emitting device, particularly in a radiation treatment device (2), the actual radiation delivered to an object (13) via a radiation beam (1) is adjusted to match the field to be irradiated on object (13). Jaws (250, 252, 254, 256) are arranged between a radiation source and an object (13) to provide an opening (110). The field is divided up into sections, and wedge corrections and/or monotonic functions are calculated for each of the sections. The wedge corrections and/or monotonic functions are used to deliver radiation to each of the sections in the field. Jaws (250, 252, 254, 256) and the radiation dose are controlled during the treatment of each of the sections.

摘要翻译： 在辐射发射装置中，特别是在辐射处理装置（2）中，通过辐射束（1）传送到物体（13）的实际辐射被调节以与待照射在物体（13）上的场相匹配。 钳口（250,252,254,256）布置在辐射源和物体（13）之间以提供开口（110）。 该场被分成几个部分，并且为每个部分计算楔形校正和/或单调函数。 楔形校正和/或单调功能用于将辐射传送到现场的每个部分。 在每个部分的治疗期间控制颌骨（250,252,254,256）和辐射剂量。

公开(公告)号：EP0817209A1

公开(公告)日：1998-01-07

申请号：EP97110599.4

申请日：1997-06-27

申请人： SIEMENS MEDICAL SYSTEMS, INC.

发明人： Siochi, Ramon Alfredo Carvalho

IPC分类号： G21K1/04

CPC分类号： A61N5/1042

摘要： In a radiation emitting device, particularly in a radiation treatment device (2), the radiation treatment for an object (13) via a radiation beam (1) is determined. The field on the object to be irradiated is inputted and then divided up into sections (220-230). Plates or a collimator are arranged between a radiation source and an object (13) to provide an opening over one of sections (220). A radiation beam (1) is generated and used to treat one of sections (220) with radiation. This is repeated until each of sections (220-230) are treated with radiation.

摘要翻译： 用于控制辐射传播的方法涉及在物体上定义辐射场。 该字段分为多个部分，每个部分具有定义的参数。 每个部分用辐射单独处理。 该处理包括在辐射源和物体之间限定开口。 开口位于该部分之一上，并且能够将辐射束定界为该部分的限定参数。 利用从辐射源到物体的无损光束路径产生辐射束。 重复处理，直到每个部分都被照射。

公开(公告)号：EP0817210B1

公开(公告)日：2001-11-28

申请号：EP97110600.0

申请日：1997-06-27

申请人： SIEMENS MEDICAL SYSTEMS, INC.

发明人： Siochi, Ramon Alfredo Carvalho ,  Hernandez-Guerra, Francisco Miguel

IPC分类号： G21K1/04

CPC分类号： A61N5/10 ,  A61N5/1042 ,  A61N2005/1095 ,  G21F5/04 ,  G21K1/04 ,  G21Y2002/204 ,  G21Y2004/30 ,  G21Y2004/403

公开(公告)号：EP0817209B1

公开(公告)日：2001-09-12

申请号：EP97110599.4

申请日：1997-06-27

申请人： SIEMENS MEDICAL SYSTEMS, INC.

发明人： Siochi, Ramon Alfredo Carvalho

IPC分类号： G21K1/04

CPC分类号： A61N5/1042

公开(公告)号：EP0984272A2

公开(公告)日：2000-03-08

申请号：EP99306326.2

申请日：1999-08-10

申请人： SIEMENS MEDICAL SYSTEMS, INC.

发明人： Siochi, Ramon Alfredo Carvalho

IPC分类号： G01N23/04

CPC分类号： G21K1/025 ,  A61B6/027 ,  A61N5/1031 ,  A61N5/1042 ,  A61N5/1048 ,  A61N2005/1034 ,  A61N2005/1054 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

摘要： The present invention relates to a fast and accurate method for calculating fluence of a calculation plane (210) over a patient. According to an embodiment of the present invention, only a subset (560, 562) of the collimator leaves (104) are analyzed for the fluence calculation, thus reducing the number of calculations required. Additionally, pre-integrated values of scatter strips (520), associated with each point of the calculation plane (210), may be referenced in a lookup table (1010). The use of these pre-integrated values allows the avoidance of adding the fluence contribution of each square on the scattering plane (202). Rather, pre-calculated values of a subset (560, 562) of the scattering plane (202) (scatter strip (520)) may be referenced and combined, thus reducing the number of calculations required for a final scatter contribution to a point (500, 500a, 500b, 500c) on the calculation plane (210). Further, the thickness of the collimator leaves (104) is considered in the fluence calculation, thus providing a more accurate model for the scatter contributions of points on the scattering plane (202).

摘要翻译： 本发明涉及一种用于计算患者的计算平面（210）的注量的快速且准确的方法。 根据本发明的实施例，仅对准直器叶子（104）的子集（560,562）进行分析，以计算注量，从而减少所需的计算次数。 另外，可以在查找表（1010）中引用与计算平面（210）的每个点相关联的散射条（520）的预积分值。 使用这些预积分值允许避免在散射平面（202）上增加每个正方形的注量贡献。 相反，可以参考和组合散射平面（202）（散射条（520））的子集（560,562）的预计算值，从而减少对点的最终散射贡献所需的计算数（ 500，500a，500b，500c）在计算平面（210）上。 此外，在注量计算中考虑准直器叶片（104）的厚度，从而为散射平面（202）上的点的散射贡献提供更准确的模型。