大脑后动脉搏动指数减低的原因分析  

Analysis of the Causes of Low Pulsation of Posterior Cerebral Artery

作　　者：李燕[1] 张峥[1] 程静[1] 石逸杰[2] 耿晓坤[3] 曾燕荣[1] 

机构地区：[1]首都医科大学附属北京潞河医院超声科,北京市101149 [2]首都医科大学附属北京潞河医院放射科,北京市101149 [3]首都医科大学附属北京潞河医院神经介入,北京市101149

出　　处：《中国超声医学杂志》2017年第2期97-100,共4页Chinese Journal of Ultrasound in Medicine

基　　金：北京市通州区卫生发展科研专项(No.twkyzx2014-04)

摘　　要：目的分析导致大脑后动脉搏动指数(PI_(PCA))减低的因素。方法回顾性连续纳入经颅多普勒超声(TCD)检出的PI_(PCA)减低患者143例(单侧组43例,双侧组100例),对比分析两组患者年龄、性别、脑血管病危险因素、临床症状、体征及颈动脉彩色多普勒超声、CTA/DSA、CT/MRI等影像学资料。结果 (1)单侧组中3例(3/43)患者有脑出血病史,双侧组中100例均无脑出血病史,两组差异有统计学意义(χ~2=7.126,P=0.008),两组间的临床资料差异无统计学意义。(2)两组患者健侧大脑中动脉搏动指数(PI_(MCA))与患侧PI_(PCA)之间的差为0.33(0.27~0.48)vs 0.33(0.24~0.43),两组间差异无统计学意义(P>0.05)。(3)以DSA/CTA为标准,双侧PI_(PCA)减低多见于双侧椎动脉(VA)病变或基底动脉(BA)病变;单侧PI_(PCA)减低多见于单侧PCA自身病变以及胚胎型大脑后动脉(FPCA)存在的情况。结论 PI_(PCA)的减低是反映PCA供血区低灌注的客观指标,分析导致PI_(PCA)减低的因素,有助于临床症状的综合评估及进一步选择检查手段和制定治疗方案。Objective To analysis the factors leading to the reduction of the posterior cerebral artery pulsation index（PIPCA）. Methods One hundred and forty-three patients with PCA low pulsation （which unilateral 43 cases, bilateral 100 cases） screened by Transcranial Doppler （TCD） were retrospective consecutively enrolled in this study. The messages of patients were recorded and analyzed, such as age, gender, cerebral vascular disease risk factors, clinical symptoms, signs and carotid artery color Doppler ultrasound, CTA/DSA, CT/MRI imaging data, and so on. Results （1） Clinical data of the two groups were compared and shown that 3 cases of patients （which 2 cases of arteriovenous fistula, 1 case for arteriovenous malformations） in the unilateral group of 43 patients had cerebral hemorrhage disease history, while none of 100 patients in the bilateral group had history of cerebral hemorrhage. The difference between the two groups had statistical significance, （χ^2 = 7. 126, P= 0. 008）. There was no significant difference in the two groups with general information, risk factors, symptoms/signs and posterior circulation cerebral infarction （P〉0.05）. （2）The difference between the two groups of patients with healthy side middle cerebral artery pulsation in- dex （PIMcA） and diseased side of PIPCA was 0.33 （0.27-0.48） vs 0.33 （0.24-0.43）, and there was no significant difference between the two groups （P〉0.05）. （3）To DSA/CTA for standard, bilateral PCA low pulsation was more common in bilateral vertebral artery （VA） lesions or basilar artery （BA） lesions. Unilateral PCA low pulsation often emerged in oneself lesions of unilateral PCA, As well as appeared frequently in the situation of the fetal origin of the posterior cerebral artery （FPCA） existence. Conclusions The reduction of PIPCA was objective index that could reflect the blood supply area of PCA hypoperfusion. TCD combined with Color Doppler ultrasound might find the position and degree of the lesions that

关 键 词：经颅多普勒超声 彩色多普勒超声 大脑后动脉 搏动指数 低灌注 

分 类 号：R445.1[医药卫生—影像医学与核医学] R743[医药卫生—诊断学]