[改进型针孔准直器的测试性能及其在小动物中的应用]

[Testing performance of the improved pinhole collimator and its application to small animals].

作者信息

Takano H, Kaku T, Sano T, Maeda S, Goto K, Kaneko M

机构信息

Department of Dental Radiology, Higashi-Nippon-Gakuen University School of Dentistry, Hokkaido, Japan.

出版信息

Radioisotopes. 1988 Aug;37(8):456-9. doi: 10.3769/radioisotopes.37.8_456.

DOI:10.3769/radioisotopes.37.8_456

PMID:3222475

Abstract

Testing performance of the improved pinhole collimator of 1.5 mm aperture attached to the gamma camera was carried out with three kinds of radionuclides, 99mTc, 67Ga and 131I, using a hand-made phantom. The results obtained in this experiment were compared to those obtained with a human pinhole collimator of 4 mm aperture. Those were nearly understood by taking account of the effective aperture of a pinhole collimator for each effective photon energy. And all scintigrams obtained from rats with various scintigraphy showed high resolution images.

摘要

使用自制体模，对安装在γ相机上的孔径为1.5毫米的改进型针孔准直器，采用三种放射性核素99mTc、67Ga和131I进行测试性能。将本实验获得的结果与孔径为4毫米的人体针孔准直器获得的结果进行比较。通过考虑针孔准直器对每种有效光子能量的有效孔径，这些结果几乎是可以理解的。并且从进行各种闪烁扫描的大鼠获得的所有闪烁图都显示出高分辨率图像。