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正常值应用各种方法测定人的正常脑血流量(以下简称CBF)为45～65毫升/100克/分,较为正确的值是应用kety-Schmi.t法及动脉注入Xe~(133)或Kr~(85)法所测得之CBF为50毫升/100克/分左右。正常年轻人的大脑灰质血流量为80毫升/100克/分,大脑白质血流量为21/毫升/100克/分。小脑血流量为33毫升/100克/分,其血流量较大脑血流量低。脊髓血流量则更低。 CBF随年龄而变化。刚出生后CBF最大,在儿童期至刚成年期CBF可能下降。在以后
Normal use of various methods to determine the normal human cerebral blood flow (hereinafter referred to as CBF) 45 to 65 ml / 100 g / min, the more correct value is the application of kety-Schmi.t method and arterial injection of Xe ~ (133) or The CBF measured by the Kr ~ (85) method was about 50 ml / 100 g / min. Normal young people have gray matter blood flow of 80 ml / 100 g / min and white matter blood flow of 21 / ml / 100 g / min. Cerebellum blood flow of 33 ml / 100 g / min, the blood flow than the cerebral blood flow is low. Spinal cord blood flow is lower. CBF varies with age. CBF is greatest after birth, and CBF may decline during adulthood to adulthood. In the future