LACHAINE, Martin Emile (CA),ЛАШЭН, Мартен Эмиль (CA)
申请号：
RU2019119212
公开号：
RU0002719024C1
申请日:
2017.11.17
申请国别(地区):
RU
年份:
2020
代理人:
摘要：
FIELD: medicine.SUBSTANCE: invention refers to medicine. A system for forming three-dimensional images of a patient's target area comprises at least one computer system configured to: receive a non-parallel projection image of the patient's target area formed using a projection beam having a plurality of beams； convert non-parallel projection image into non-spatial domain, wherein the non-parallel projection image formed using the projection beam having a plurality of beams is converted into a non-spatial domain based on vectors perpendicular to the corresponding beams, wherein said vectors are formed between isocenter of projection beam and corresponding points along corresponding beams, which are closer to isocenter than other points along corresponding beams； reconstruct a three-dimensional image from at least said non-parallel projection image in a non-spatial domain； and transform the reconstructed three-dimensional image from the non-spatial domain into a spatial domain. A computer-implemented method implemented by means of a system. Non-volatile computer-readable medium which is part of the system. In a second embodiment, a system for forming three-dimensional images of a patient's target area comprises: at least one computer system configured to: receive computed tomography image formation data with a conic beam having a plurality of beams； convert image forming data from spatial domain into first non-spatial domain, wherein image forming data are converted into a non-spatial domain based on vectors perpendicular to corresponding beams, wherein said vectors are formed between isocenter of conic beam and corresponding points along corresponding beams, which are closest to isocenter, than other points along corresponding beams； convert image forming data from a first non-spatial area to a second non-spatial domain； reconstruct a three-dimensional image from image forming data in at least one of a first non-spatial domain and a second non-spatial domain； and tr
