Three-dimensional correction method for pencil beam dose calculation in case of lung radiotherapy
A technology of pencil beam and radiotherapy planning system, which is applied in the field of radiotherapy, can solve problems such as inability to improve the radiotherapy planning system, fail to meet clinical needs, and long calculation time, so as to facilitate implementation, improve effect, improve correction ability and accuracy Effect
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[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0052] The three-dimensional correction scheme for pencil beam dose calculation in lung radiotherapy provided by the embodiment of the present invention is especially suitable for the case where the CT value of lung tissue varies greatly and there are multiple CT values around the CT cell.
[0053] figure 1 It is a flowchart of a three-dimensio...
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