- 专利标题: SUBJECT INFORMATION ACQUISITION APPARATUS, MAGNETIC RESONANCE IMAGING APPARATUS, SUBJECT INFORMATION ACQUISITION METHOD, AND STORAGE MEDIUM
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申请号: US17643047申请日: 2021-12-07
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公开(公告)号: US20220183630A1公开(公告)日: 2022-06-16
- 发明人: Ryuichi Nanaumi , Kazuya Okamoto , Takafumi Ohishi
- 申请人: CANON KABUSHIKI KAISHA , CANON MEDICAL SYSTEMS CORPORATION
- 申请人地址: JP Tokyo; JP Tochigi
- 专利权人: CANON KABUSHIKI KAISHA,CANON MEDICAL SYSTEMS CORPORATION
- 当前专利权人: CANON KABUSHIKI KAISHA,CANON MEDICAL SYSTEMS CORPORATION
- 当前专利权人地址: JP Tokyo; JP Tochigi
- 优先权: JP2020-206972 20201214
- 主分类号: A61B5/00
- IPC分类号: A61B5/00 ; A61B5/055 ; G01R33/567
摘要:
A subject information acquisition apparatus, comprises: a signal generation unit configured to generate a high-frequency signal corresponding to each of the frequencies; an acquisition unit configured to acquire a plurality of detection signals based on at least one of a reflection signal and a transmission signal; a signal selection unit configured to select at least one detection signal from the plurality of detection signals based on an index value of the plurality of detection signals; a coupling amount detecting unit configured to detect a coupling amount of near-field coupling due to an electric field between the antenna and the subject based on a detection signal; and a displacement detecting unit configured to generate a displacement signal indicating a displacement of the subject based on the coupling amount.