Wirestam R, Brockstedt S, Lindgren A, Geijer B, Thomsen C, Holtås S, Ståhlberg F
Department of Radiation Physics, Lund University Hospital, Sweden.
Acta Radiol. 1997 Nov;38(6):961-4. doi: 10.1080/02841859709172110.
The fractional volume of capillary blood, i.e. the perfusion fraction f, was measured with the aid of an echo-planar imaging protocol originally designed for the measurement of water diffusion. In healthy volunteers, reasonable f values were obtained. In patients with cerebral ischaemic stroke, a marked decrease in the f value was seen in the infarcted region as compared with corresponding values in the contralateral hemisphere. We suggest that perfusion-fraction measurements may add to the diagnostic value of water-mobility examinations in patients with ischaemic disease.
毛细血管血的分数体积，即灌注分数f，借助最初设计用于测量水扩散的回波平面成像协议进行测量。在健康志愿者中，获得了合理的f值。在脑缺血性中风患者中，与对侧半球的相应值相比，梗死区域的f值明显降低。我们认为，灌注分数测量可能会增加缺血性疾病患者水流动性检查的诊断价值。
