论文标题
根据ISO-5725评估无线电定位分析（RSA）图像处理器准确性的计算机仿真协议
A computer simulation protocol to assess the accuracy of a Radio Stereometric Analysis (RSA) image processor according to the ISO-5725
论文作者
论文摘要
无线电测度分析和X射线荧光镜检查是需要专用软件来处理数据的放射学技术。因此，这些软件的准确校准至关重要。这项工作的目的是生成根据ISO-5725评估软件精度的协议。采用了一系列放射学设置和图像的计算机模拟。图像的噪声水平也被更改以评估不同图像质量的准确性。该协议已在作者开发的自定义软件上进行了测试。放射学场面重建精度为（0.092 +-0.14）mm，对于探测器，探测器以除源检测器方向以外的方向而定向。在源检测器方向上，对于试管位置的精度为（2.68 +-3.08）毫米，对于检测器，（0.16 +-0.27）mm /（0.16 +-0.27）mm /（0.075 +-1.16）dev。这些不同的结果在文献中得到了广泛讨论。模型定位和方向也很准确：（0.22 +-0.46）mm /（0.26 +-0.22）度。精度不受噪声水平的影响。该协议能够评估RSA系统的准确性。检测和修复隐藏的错误也很有用。检测和解决软件中的隐藏错误以及优化算法也很有用。
Radio-Stereometric-Analysis and x-ray fluoroscopy are radiological techniques that require dedicated software to process data. The accurate calibration of these software is therefore critical. The aim of this work is to produce a protocol for evaluating the softwares' accuracy according to the ISO-5725. A series of computer simulations of the radiological setup and images were employed. The noise level of the images was also changed to evaluate the accuracy with different image qualities. The protocol was tested on a custom software developed by the authors. Radiological scene reconstruction accuracy was of (0.092 +- 0.14) mm for tube position, and (0.38 +- 0.31) mm / (2.09 +- 1.39) deg for detectors oriented in a direction other than the source-detector direction. In the source-detector direction the accuracy was of (2.68 +- 3.08) mm for tube position, and of (0.16 +- 0.27) mm / (0.075 +- 1.16) deg for the detectors. These disparate results are widely discussed in the literature. Model positioning and orientation was also highly accurate: (0.22 +- 0.46) mm / (0.26 +- 0.22) deg. Accuracy was not affected by the noise level. The protocol was able to assess the accuracy of the RSA system. It was also useful to detect and fix hidden bugs. It was also useful to detect and resolve hidden bugs in the software, and in optimizing the algorithms.
