Inoue Y, Machida K, Honda N, Mamiya T, Takahashi T, Kamano T, Kashimada A
Department of Radiology, Saitama Medical Center.
Kaku Igaku. 1993 Jan;30(1):85-8.
We compared 360 degrees data collection technique with 180 degrees technique in SPECT using a new myocardial perfusion imaging agent, 99mTc-Tetrofosmin. Eight patients were examined at stress and at rest on separate days. Following the injection of 555 MBq 99mTc-Tetrofosmin, 64 views of 15 sec each were collected during a 360 degrees rotation, and 32 views of 30 sec each during a 180 degrees rotation. The 180 degrees data collection provided superior images in sharpness in 14 of 16 scans. The interpretation was concordant in 123 of 128 regions (96.1%), and hypoperfusion was considered to be underestimated in 5 regions using the 360 degrees technique. It was suggested that the 180 degrees data collection technique is more effective in myocardial SPECT employing 99mTc-Tetrofosmin than the 360 degrees technique.
我们使用新型心肌灌注显像剂99mTc-替曲膦，在单光子发射计算机断层显像（SPECT）中比较了360度数据采集技术和180度技术。8例患者在不同日期分别于负荷和静息状态下接受检查。注射555MBq的99mTc-替曲膦后，在360度旋转过程中每15秒采集64帧图像，在180度旋转过程中每30秒采集32帧图像。在16次扫描中的14次扫描中，180度数据采集所获得的图像在清晰度方面更优。128个区域中的123个区域（96.1%）的解读结果一致，使用360度技术时，有5个区域的灌注减低被认为被低估。提示在使用99mTc-替曲膦的心肌SPECT中，180度数据采集技术比360度技术更有效。
