用于通气研究的准直器和氙-127。
Collimator and xenon-127 for ventilation studies.
作者信息
Chu R Y, Zielinski F W, Ing S J, Poe N D
出版信息
Radiology. 1980 Dec;137(3):819-23. doi: 10.1148/radiology.137.3.7444066.
Abstract
In comparison with xenon-133, the more energetic emissions from xenon-127 suffer less attenuation by tissues and should therefore provide images with better resolution in ventilation studies. However, the better resolution of the low-energy collimator used with xenon-133 may outweigh such advantages of the more energetic emission of xenon-127, which requires a medium or high-energy collimator.
摘要
与氙 - 133相比，氙 - 127发出的能量更高的辐射受组织衰减的程度较小，因此在通气研究中应能提供分辨率更高的图像。然而，与氙 - 133一起使用的低能准直器具有更好的分辨率，这可能会超过氙 - 127能量更高的辐射的此类优势，而氙 - 127需要使用中能或高能准直器。
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