Title:
SYSTEMS AND METHODS FOR DETERMINING COLLIMATOR EDGE
Document Type and Number:
WIPO Patent Application WO/2021/121234
Kind Code:
A1
Abstract:
A multi-leaf collimator (MLC) (400A, 400B, 400C, 500, 600) includes a layer of leaves. Each of at least one leaf of the layer of leaves may include a first section (411, 421, 451, 461, 511, 521) of a first attenuation capacity and a second section (412, 422, 452, 462, 512, 522, 612, 622) of a second attenuation capacity. The first attenuation capacity of the first section (411, 421, 451, 461, 511, 521) may be lower than the second attenuation capacity of the second section (412, 422, 452, 462, 512, 522, 612, 622) such that the first section (411, 421, 451, 461, 511, 521) is at least semi-permeable to radiation traversing the MLC.
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Inventors:
HU YANG (CN)
FENG JUAN (CN)
HAN YECHENG (CN)
ZHOU HAIHUA (CN)
ZHANG NA (CN)
FENG JUAN (CN)
HAN YECHENG (CN)
ZHOU HAIHUA (CN)
ZHANG NA (CN)
Application Number:
PCT/CN2020/136626
Publication Date:
June 24, 2021
Filing Date:
December 15, 2020
Export Citation:
Assignee:
SHANGHAI UNITED IMAGING HEALTHCARE CO LTD (CN)
International Classes:
A61N5/10; G06T7/13
Foreign References:
CN111053977A | 2020-04-24 | |||
CN111161297A | 2020-05-15 | |||
US20100034357A1 | 2010-02-11 | |||
US20100034357A1 | 2010-02-11 | |||
CN108937998A | 2018-12-07 | |||
CN105748098A | 2016-07-13 | |||
CN107977973A | 2018-05-01 | |||
CN106618615A | 2017-05-10 |
Attorney, Agent or Firm:
METIS IP (CHENGDU) LLC (CN)
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