Invention Grant
US08731269B2 Method and system for substantially reducing artifacts in circular cone beam computer tomography (CT)
有权
圆锥束计算机断层扫描（CT）中大幅减少假象的方法和系统
- Patent Title: Method and system for substantially reducing artifacts in circular cone beam computer tomography (CT)
- Patent Title (中): 圆锥束计算机断层扫描（CT）中大幅减少假象的方法和系统
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Application No.: US13276841Application Date: 2011-10-19
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Publication No.: US08731269B2Publication Date: 2014-05-20
- Inventor: Satoru Nakanishi , Be-Shan Chiang , Alexander Zamyatin
- Applicant: Satoru Nakanishi , Be-Shan Chiang , Alexander Zamyatin
- Applicant Address: JP Tokyo JP Otawara-Shi
- Assignee: Kabushiki Kaisha Toshiba,Toshiba Medical Systems Corporation
- Current Assignee: Kabushiki Kaisha Toshiba,Toshiba Medical Systems Corporation
- Current Assignee Address: JP Tokyo JP Otawara-Shi
- Agency: Yoshida & Associates, LLC
- Main IPC: G06K9/00
- IPC: G06K9/00 ; A61B6/00 ; A61B5/00
Abstract:
Cone beam artifacts arise in circular CT reconstruction. The cone beam artifacts are substantially removed by reconstructing a reference image from measured data at circular source trajectory, generating synthetic data by forward projection of the reference image along a pre-determined source trajectory, which supplements the circular source trajectory to a theoretically complete trajectory, reconstructing a correction image from the synthetic data and substantially reducing the cone beam artifacts by generating a corrected image using the reference image and the correction image.
Public/Granted literature
- US20130101192A1 METHOD AND SYSTEM FOR SUBSTANTIALLY REDUCING ARTIFACTS IN CIRCULAR CONE BEAM COMPUTER TOMOGRAPHY (CT) Public/Granted day:2013-04-25
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