发明名称 |
Method and system for substantially reducing artifacts in circular cone beam computer tomography (CT) |
摘要 |
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. |
申请公布号 |
US8731269(B2) |
申请公布日期 |
2014.05.20 |
申请号 |
US201113276841 |
申请日期 |
2011.10.19 |
申请人 |
NAKANISHI SATORU;CHIANG BE-SHAN;ZAMYATIN ALEXANDER;KABUSHIKI KAISHA TOSHIBA;TOSHIBA MEDICAL SYSTEMS CORPORATION |
发明人 |
NAKANISHI SATORU;CHIANG BE-SHAN;ZAMYATIN ALEXANDER |
分类号 |
G06K9/00;A61B5/00;A61B6/00 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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