医学
外渗
衰减
计算机断层摄影术
血液循环
放射科
断层摄影术
全血
核医学
病理
内科学
光学
物理
传统医学
作者
Paul F. J. New,Saul Aronow
出处
期刊:Radiology
[Radiological Society of North America]
日期:1976-12-01
卷期号:121 (3): 635-640
被引量:285
摘要
Computed tomography (CT) provides an extraordinarily effective means of diagnosing intracranial hemorrhages. Normal blood has a relatively high x-ray attenuation in the circulation and following extravasation, permitting the discrimination by CT of many pathologically enlarged vascular spaces containing circulating blood and∕or blood clot (such as arteriovenous malformations and large aneurysms) in addition to recent hemorrhages, from contiguous anatomical structures. To promote further understanding of the factors contributing to the attenuation of blood in normal and abnormal states, the attenuations of various preparations of whole blood and blood fractions were investigated in further detail.
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