A high‐energy‐resolution whole‐body SPECT‐CT device (NM/CT 870 CZT; C‐SPECT) equipped with a CZT detector has been developed and is being used clinically. A MEHRS collimator has also been developed recently, with an expected improvement in imaging accuracy using medium‐energy radionuclides. The objective of this study was to compare and analyze the accuracies of the following devices: a WEHR collimator and the MEHRS collimator installed on a C‐SPECT, and a NaI scintillation detector‐equipped Anger‐type SPECT (A‐SPECT) scanner, with a LEHR and LMEGP.

中文翻译：

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配备WEHR和MEHRS准直仪的GE NM / CT 870 CZT临床SPECT系统的实验评估

配备了CZT检测器的高能分辨率全身SPECT-CT设备（NM / CT 870 CZT; C-SPECT）已开发出来，正在临床上使用。最近还开发了MEHRS准直仪，使用中能放射性核素有望提高成像精度。这项研究的目的是比较和分析以下设备的精度：安装在C-SPECT上的WEHR准直仪和MEHRS准直仪，以及配备NaI闪烁探测器的Anger型SPECT（A-SPECT）扫描仪， LEHR和LMEGP。