论文部分内容阅读
摘要目的比较肺动脉高压(PAH)与外周型慢性血栓栓塞性肺高压(p CTEPH)双能CT肺灌注的特点。方法 31例病人(第1组为19例PAH;第2组为12例p CTEPH)接受双能量胸部CTA扫描,并进行扫描后诊断及灌注图像的重组。对灌注参数的分析进行至肺段水平。22例病人行通气-灌注(V/Q)核素闪烁扫描(其中第1组13例,第2组9例)。结果CT灌注异常的病人中,第1组阳性率为52.6%,第2组阳性率为100%,两者差异具有统计学意义(P=0.005 1);且灌注异常的表现类型在2组间差异具有统计学意义(P<0.000 1):
Abstract Objective To compare the characteristics of pulmonary perfusion between pulmonary arterial hypertension (PAH) and peripheral blood type chronic thromboembolic pulmonary hypertension (p CTEPH). Methods Thirty-one patients (19 PAH in group 1 and 12 p CTEPH in group 2) underwent double-energy chest CTA and were diagnosed after the scan and reconstructed perfusion images. The perfusion parameters were analyzed to the level of the lung segment. Twenty-two patients underwent gas-perfusion (V / Q) scintigraphy (13 in group 1 and 9 in group 2). Results The positive rate of the first group was 52.6% and the positive rate of the second group was 100% in the patients with abnormal CT perfusion. The difference between the two groups was statistically significant (P = 0.005 1). The type of perfusion abnormalities was between the two groups The difference was statistically significant (P <0.000 1):