大脑后动脉搏动指数减低的原因分析

发布时间：2018-05-03 02:24

本文选题：经颅多普勒超声 + 彩色多普勒超声　；参考：《中国超声医学杂志》2017年02期

【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(P0.05)。(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。
[Abstract]:Objective to analyze the factors leading to the decrease of posterior cerebral artery pulsatility index (Pi). Methods 143 patients (43 patients with unilateral group and 100 patients with bilateral group) with decreased PI- PCA detected by transcranial Doppler echocardiography (TCD-TCD) were retrospectively analyzed. Age, sex, risk factors of cerebrovascular disease and clinical symptoms were compared between the two groups. Signs and CT / MRI findings of carotid color Doppler echocardiography (CTA / DSAP / CT / MRI). Results 1) three patients in the unilateral group had a history of intracerebral hemorrhage and 100 in the bilateral group had no history of intracerebral hemorrhage. The difference between the two groups was statistically significant (蠂 ~ (27.126) P ~ (0.008), there was no significant difference in clinical data between the two groups.) the difference between two groups was 0.33(0.27~0.48)vs 0.330.240.433.There was no significant difference between the two groups according to DSA/CTA. The decrease of bilateral PCA was more common in bilateral vertebral artery (VA) lesions or basilar artery (BA) lesions, and in unilateral PCA autopathy and the presence of embryonic posterior cerebral artery (PCA). Conclusion the decrease of PIA is an objective index to reflect the low perfusion in the blood supply area of PCA. The analysis of the factors that lead to the decrease of PCAs is helpful to the comprehensive evaluation of clinical symptoms, the further selection of examination methods and the formulation of treatment plan.
【作者单位】：首都医科大学附属北京潞河医院超声科;首都医科大学附属北京潞河医院放射科;首都医科大学附属北京潞河医院神经介入;
【基金】：北京市通州区卫生发展科研专项(No.twkyzx2014-04)
【分类号】：R445.1;R743

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