Comparison of Cerebral Blood Flow Between Perfusion Computed Tomography and Xenon-Enhanced Computed Tomography for Normal Subjects
| Autor: | Mitsuru Honda, Yoshikatsu Seiki, Shigeru Sase, Keiichi Machida |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Adult
Male Xenon Cerebral arteries Thalamus Contrast Media Computed tomography Cranial Sinuses Sensitivity and Specificity Basal Ganglia Image Processing Computer-Assisted Humans Medicine Radiology Nuclear Medicine and imaging Aged medicine.diagnostic_test business.industry Putamen Headache Brain Intracranial Aneurysm Cerebral Arteries Middle Aged Image Enhancement Cerebral Angiography Cerebral blood flow Regional Blood Flow Vertigo Female Tomography Tomography X-Ray Computed business Nuclear medicine Perfusion Blood Flow Velocity Cerebral angiography |
| Zdroj: | Journal of Computer Assisted Tomography. 29:270-277 |
| ISSN: | 0363-8715 |
| DOI: | 10.1097/01.rct.0000156400.40836.68 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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