Geometric calibration for a SPECT system dedicated to breast imaging
Geometric calibration for a SPECT system dedicated to breast imaging
复制标题
乳腺成像专用 SPECT 系统的几何校准
DOI：
10.1088/1674-1137/36/10/019
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发表时间：
2012-10
影响因子：
3.6
通讯作者：
Shan Bao-Ci
中科院分区：
文献类型：
--
作者：
Wu Li-Wei;Wei Long;Cao Xue-Xiang;Wang Lu;Huang Xian-Chao;Chai Pei;Yun Ming-Kai;Zhang Yu-Bao;Zhang Long;Shan Bao-Ci
几何校正对SPECT重建的准确性至关重要。本文针对具有倾斜平行束（TPB）轨道的专用乳腺SPECT系统开发了一种几何校准方法。首先表征了乳腺SPECT的采集几何结构。在此基础上，建立了基于采集几何的投影模型。最后，使用非线性优化方法获得校准结果，该方法将测量的投影拟合到模型。利用乳腺SPECT的蒙特卡罗数据对标定方法进行了验证。仿真结果表明，该方法可以获得具有合理精度的几何参数。
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.
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DOI：
10.1109/nssmic.2000.949385
发表时间：
2000-10
期刊：
2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)
影响因子：
--
作者：
B. C. Pieper;J. Bowsher;M. Tornai;G. Peter;K. Greer;R. Jaszczak
通讯作者：
B. C. Pieper;J. Bowsher;M. Tornai;G. Peter;K. Greer;R. Jaszczak
影响因子：
10.6
作者：
Wang, Yuchuan;Tsui, Benjamin M. W.
通讯作者：
Tsui, Benjamin M. W.
影响因子：
1.8
作者：
Metzler, SD;Jaszczak, RJ
通讯作者：
Jaszczak, RJ
影响因子：
10.6
作者：
Metzler, SD;Greer, KL;Jaszczak, RJ
通讯作者：
Jaszczak, RJ
影响因子：
10.6
作者：
Bequé, D;Nuyts, J;Bormans, G
通讯作者：
Bormans, G