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Issue:
ct dui gan ai de zhen duan
Author(s):
DUAN Chengxiang
Pages:
76
-
77
Year:
1987
Issue:
7
Journal:
People's Military Surgeon
Keyword:
肝癌
;
电子计算机技术
;
诊断
;
图象重建
;
相结合
;
病变范围
;
低密度
;
体层
;
增强扫描
;
衰减值
;
Abstract:
<正> CT是电子计算机X线体层照相的简称,它是近代飞跃发展的电子计算机技术和X线检查技术相结合的产物,是利用窄囊X线穿透人体某一横断体层后,由于各种组织吸收x线不同,出现不同的X线衰减值。通过扫描测得该层面中各点吸收X线的数据,利用电子计算机的高速运算能力和图象重建原理,得到人体被扫描层清晰面的横断面图象。同时还可测量病变范围和大小以及其X线衰
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