论文部分内容阅读
目的 探讨经颅能量多普勒血流显像 (PDI)在脑动静脉畸形 (AVM )诊断中的应用价值。方法对临床诊断为脑动静脉畸形患者 2 5例 ,分别采用经颅能量多普勒和彩色多普勒血流显像 (CDFI)进行探测 ,测量病变血管的Vmax、Vmin及RI ,并与脑血管造影结果进行对比分析。结果 CDFI诊断 2 3例脑AVM ,检出供血动脉 3 7支 ( 80 .4% ) ,主要供血动脉 2 8支 ( 90 .3 % ) ,引流静脉 6支 ( 3 0 .0 % ) ;PDI诊断 2 3例AVM ,检出供血动 42支 ( 91.3 % ) ,主要供血动脉 2 9支 ( 93 .5 % ) ,引流静脉 10支 ( 5 0 .0 % )。PDI和CDFI对AVM大小及位置的判断与脑血管造影结果基本一致 (P >0 .0 5 )。结论 经颅PDI对脑AVM诊断率与CDFI基本一致 ,但在显示非主要供血动脉和引流静脉方面优于CDFI ,可为临床诊断脑AVM提供更丰富的血流动力学资料。
Objective To investigate the value of transcranial Doppler flow imaging (PDI) in the diagnosis of cerebral arteriovenous malformation (AVM). Methods Twenty-five patients with clinically diagnosed cerebral arteriovenous malformations were enrolled in this study. Transcranial energy Doppler and color Doppler flow imaging (CDFI) were used to detect the Vmax, Vmin and RI of the diseased vessels, Angiography results were compared. Results CDFI was used to diagnose brain AVM in 23 cases. 37 (80.4%) of the feeding arteries, 28 (90.3%) of the main feeding arteries and 6 (30.0%) of the draining veins were detected by CDFI. Twenty-three AVMs were detected in 23 AVM patients. Forty-two (91.3%) of them were found to have blood supply, 29 (93.5%) of the main feeding arteries and 10 (50.0%) of the drainage veins. PDI and CDFI determine the size and location of AVM consistent with the results of cerebral angiography (P> 0.05). Conclusions The diagnosis rate of brain AVM by transcranial PDI is basically the same as that of CDFI, but superior to CDFI in showing non-main feeding arteries and drainage veins, which can provide richer hemodynamic data for clinical diagnosis of AVM.