THREE-DIMENSIONAL IMAGE-GUIDED POSITIONING METHOD AND SYSTEM, AND STORAGE MEDIUM

WIPO Patent Application WO/2022/198553

A1

A three-dimensional (3D) image-guided positioning method and system, and a storage medium. The method comprises: automatically segmenting a set of 3D-CT images of a patient by means of an automatic segmentation algorithm to obtain tissue organs and tumor target regions, and reconstructing, by means of a tissue organ model reconstruction algorithm, contour data of tissue organs and tumor target regions in a patient treatment plan; generating a set of virtual 3D-CT images of the patient by means of an artificial intelligence network algorithm on the basis of real-time DR images of the patient; automatically segmenting the set of virtual 3D-CT images of the patient by means of the automatic segmentation algorithm to obtain virtual tissue organs and tumor target regions, and reconstructing contour data of the virtual tissue organs and tumor target regions of the patient; registering the contour data of the tissue organs and tumor target regions in the patient treatment plan with the contour data of the virtual tissue organs and tumor target regions, outputting patient positioning offset parameters, and determining whether a radiotherapy condition is met: if not, guiding the patient to be re-positioned; and if yes, completing the positioning.

SHEN GUOSHENG (CN)
LI QIANG (CN)
LIU XINGUO (CN)
DAI ZHONGYING (CN)
JIN XIAODONG (CN)
HE PENGBO (CN)

PCT/CN2021/082938

September 29, 2022

March 25, 2021

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INST MODERN PHYSICS CAS (CN)

A61N5/10; G06N3/04; G06N3/08

CN112348857A	2021-02-09
CN106097347A	2016-11-09
CN102306239A	2012-01-04
CN106408509A	2017-02-15
CN111968110A	2020-11-20
US20090110145A1	2009-04-30

JEEKAI&PARTNERS (CN)

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