A method for measuring the slice sensitivity profile (SSP) of computed tomography (CT) images reconstructed with iterative reconstruction (IR) algorithms was reported by the AAPM Task Group 233 (TG233). In this method, the phantom plane edge is slightly slanted with respect to the scan plane to obtain a composite oversampled edge‐spread function (ESF). However, it is expected that a fine‐sampled ESF can be obtained directly from images reconstructed with a small slice increment without slanting the edge plane. This study aimed to investigate the validity of using a non‐slanted edge plane.

中文翻译：

---

技术说明：一种使用非倾斜边缘平面测量迭代重建的CT图像的切片敏感性分布的简单方法

AAPM任务组233（TG233）报告了一种用于测量通过迭代重建（IR）算法重建的计算机断层扫描（CT）图像的切片敏感性分布图（SSP）的方法。在这种方法中，幻影平面边缘相对于扫描平面略微倾斜，以获得复合的过采样边缘扩展函数（ESF）。但是，期望可以从以小切片增量重建的图像直接获得精细采样的ESF，而不会倾斜边缘平面。本研究旨在调查使用非倾斜边缘平面的有效性。