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Single photon emission computer tomography(SPECT)has been rapidly developed since it has been used in clinical practice at the end of 1970s.
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单光子发射计算机断层(SPECT)自70年代末用于临床以来已有了迅速的发展 ,它与普通的γ照相机平面像相比固然有许多优点(如可提高对比分辨 ,确定病变部位 ,提供定量信息等) ,但若质量控制不好 ,条件选择不当它又会引起许多误差、伪影。 |