Gideon P, Thomsen C, Gjerris F, Sørensen P S, Ståhlberg F, Henriksen O
Danish Research Centre of Magnetic Resonance, Hvidovre Hospital, University of Copenhagen, Denmark.
Acta Radiol. 1996 Mar;37(2):171-6. doi: 10.1177/02841851960371P135.
To measure blood flow and velocity in the superior sagittal ++sinus.
MR velocity mapping was used to examine 14 healthy volunteers, 15 patients with normal pressure hydrocephalus (NPH), 3 patients with high pressure hydrocephalus (HPH), and 11 patients with idiopathic intracranial hypertension (IIH).
Mean blood flow was 443 ml/min in healthy volunteers with a tendency towards reduced blood flow with increasing age. In NPH patients significantly lower superior sagittal sinus blood flow values were found, but this difference was no longer significant when patients and controls were matched for age. In HPH and IIH patients blood flow and velocity were within the normal range. In one patient with thrombosis of the superior sagittal sinus the blood flow was reduced to 40 ml/min.
MR velocity mapping methods may be of value in the assessment of blood flow in the dural sinuses in various pathologies resulting in dural sinus occlusion, such as dural sinus thrombosis, and for following the progress of these patients while undergoing treatment.
测量上矢状窦的血流和速度。
采用磁共振速度成像对14名健康志愿者、15例正常压力脑积水（NPH）患者、3例高压脑积水（HPH）患者和11例特发性颅内高压（IIH）患者进行检查。
健康志愿者的平均血流量为443 ml/min，且随着年龄增长有血流量减少的趋势。在NPH患者中发现上矢状窦血流量值显著降低，但当患者和对照组按年龄匹配时，这种差异不再显著。在HPH和IIH患者中，血流和速度在正常范围内。1例上矢状窦血栓形成患者的血流量降至40 ml/min。
磁共振速度成像方法在评估导致硬脑膜窦闭塞的各种病理状况（如硬脑膜窦血栓形成）中的硬脑膜窦血流以及跟踪这些患者治疗过程中病情进展方面可能具有价值。
