CEREBRAL-CIRCULATION AND OXYGEN-METABOLISM ASSOCIATED WITH SUBCLINICAL PERIVENTRICULAR HYPERINTENSITY AS SHOWN BY MAGNETIC-RESONANCE-IMAGING
CEREBRAL-CIRCULATION AND OXYGEN-METABOLISM ASSOCIATED WITH SUBCLINICAL PERIVENTRICULAR HYPERINTENSITY AS SHOWN BY MAGNETIC-RESONANCE-IMAGING
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DOI：
10.1002/ana.410280313
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发表时间：
1990-09-01
影响因子：
11.2
通讯作者：
YAMADA, K
中科院分区：
文献类型：
--
作者：
MEGURO, K;HATAZAWA, J;YAMADA, K
对 21 名有脑血管危险因素但无神经系统异常的患者进行了磁共振成像和正电子发射断层扫描联合研究。我们的目的是调查脑室周围高信号（PVH）反映缺血的假设。用我们设计的方法评估脑室周围高信号，并用氧15稳态技术评估脑循环和氧代谢。我们得出的结论是，患有严重脑室周围高信号的大脑存在循环异常，尽管氧代谢并未受到明显影响。考虑了氧气供应减少条件下补偿机制的作用。
A combined magnetic resonance imaging and positron emission tomography study was performed on 21 patients with cerebrovascular risk factors but without neurological abnormalities. Our purpose was to investigate the hypothesis that periventricular hyperintensity (PVH) reflects ischemia. Periventricular hyperintensity was evaluated with a method we devised, and cerebral circulation and oxygen metabolism were evaluated with the oxygen-15 steady-state technique. We concluded that the brain with severe periventricular hyperintensity had abnormal circulation, although oxygen metabolism was not measurably affected. The role of a compensation mechanism under conditions of decreased oxygen supply was considered.