Comparison of cerebral blood flow between perfusion computed tomography and xenon-enhanced computed tomography for normal subjects - Territorial analysis

被引:21
|
作者
Sase, S
Honda, M
Machida, K
Seiki, Y
机构
[1] Anzai Med Co Ltd, Shinagawa Ku, Tokyo 1410033, Japan
[2] Toho Univ, Dept Neurosurg, Sch Med, Tokyo, Japan
[3] Toho Univ, Dept Radiol, Sch Med, Tokyo, Japan
关键词
perfusion; xenon; computed tomography; cerebral blood flow;
D O I
10.1097/01.rct.0000156400.40836.68
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Objective: The purpose of this study was to clarify the difference between cerebral blood flow (CBF) by perfusion computed tomography (CT) and that by xenon-enhanced CT (Xe-CT) through simultaneous measurement. Methods: Xenon-enhanced CT and perfusion CT were continually performed on 7 normal subjects. Ratios of CBF by perfusion CT (P-CBF) to CBF by Xe-CT (Xe-CBF) were measured for 5 arterial territories; 3 were territories of 3 major arteries (the anterior [ACA], middle [MCA], and posterior [PCA] cerebral arteries), and the other 2 were areas of the thalamus and putamen. Results: The ratios were 1.30 +/- 0.10, 1.26 +/- 0.15, 1.61 +/- 0.15, 0.801 +/- 0.087, and 0.798 +/- 0.080 for the ACA, MCA, PCA, thalamus, and putamen, respectively. Although a good correlation was observed between P-CBF and Xe-CBF for each territory, the ratios were significantly different (P < 0.0001) between 3 territory groups (group 1: ACA and MCA, group 2: PCA, and group 3: thalamus and putamen). Conclusions: The difference in the ratio of P-CBF to Xe-CBF between the 3 territory groups was considered to result principally from the features of P-CBF. To evaluate P-CBF properly, its territorial characteristics should be taken into account.
引用
收藏
页码:270 / 277
页数:8
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