| Geometric calibration for a SPECT systemdedicated to breast imaging |
| |
| 作者姓名： | 武丽伟 曹学香 王璐 黄先超 柴培 贠明凯 张玉包 张龙 单保慈 魏龙 |
| |
| 作者单位： | 1. Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics,Chinese Academy of Sciences, Beijing 100049, China;;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;;3. Beijing Engineering Research Center of Radiographic Techniques and Equipment, Beijing 100049, China |
| |
| 基金项目： | Supported by National Natural Science Foundation of China (118110117465) |
| |
| 摘 要： | Geometric calibration is critical to the accurate SPECT reconstruction. In this paper, a geometric calibration method was developed for a dedicated breast SPECT system with a tilted parallel beam (TPB) orbit. The acquisition geometry of the breast SPECT was firstly characterized. And then its projection model was established based on the acquisition geometry. Finally, the calibration results were obtained using a nonlinear optimization method that fitted the measured projections to the model. Monte Carlo data of the breast SPECT were used to verify the calibration method. Simulation results showed that the geometric parameters with reasonable accuracy could be obtained by the proposed method.
|
| 关 键 词： | geometric calibration acquisition geometry tilted parallel beam (TPB) breast SPECT Monte Carlo simulation |
| 收稿时间： | 2012-1-17 |
| 修稿时间： | 2012-2-9 |
Geometric calibration for a SPECT system dedicated to breast imaging |
| |
| WU Li-Wei,CAO Xue-Xiang,WANG Lu,HUANG Xian-Chao,CHAI Pei,YUN Ming-Kai,ZHANG Yu-Bao,ZHANG Long,SHAN Bao-Ci,;,WEI Long.Geometric calibration for a SPECT systemdedicated to breast imaging[J].High Energy Physics and Nuclear Physics,2012,36(10):1019-1024. |
| |
| Authors: | WU Li-Wei CAO Xue-Xiang WANG Lu HUANG Xian-Chao CHAI Pei YUN Ming-Kai ZHANG Yu-Bao ZHANG Long SHAN Bao-Ci ; WEI Long |
| |
| Institution: | 1,3 1 Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 Beijing Engineering Research Center of Radiographic Techniques and Equipment, Beijing 100049, China |
| |
| Abstract: | |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国物理 C》浏览原始摘要信息 |
| 点击此处可从《中国物理 C》下载免费的PDF全文 |
|
