Romano M, Amato B, Markabaoui K, Tamburrini O, Salvatore M
Department of Radiology and Radiotherapy Federico II University, Naples, Italy.
Minerva Cardioangiol. 2004 Feb;52(1):9-17.
The aim of this study is to evaluate the accuracy of multidetector row CT angiography (MDCTA) of the abdominal aorta and lower extremities arteries in patients with peripheral arterial occlusive disease who did not receive any prior treatment whether interventional or surgical.
Twenty-two patients with peripheral vascular occlusive disease (16 male, 6 female, age range 44-85 years) underwent MDCTA of the abdominal aorta and lower extremities. Digital subtraction angiography (DSA) of the same districts was performed within 3 months. Images were blindly interpreted by 2 interventional radiologists and compared with the results of digital subtraction angiography.
Sensitivity and specificity of MDCTA were 92% and 94%, respectively, with positive and negative predictive values of 93% and 95%. Overall diagnostic accuracy was 93%. Normal arterial segments and 100% occlusions were correctly identified in all cases by MDCTA. Moderately stenotic segments interpretation in the calves appeared to be more controversial, but no statistical difference in accuracy in this district was noted with respect to accuracy in more proximal arteries.
MDCTA of the abdominal aorta and lower extremities is a feasible, accurate imaging modality in clinical practice when compared to DSA.
本研究旨在评估多层螺旋CT血管造影（MDCTA）对未接受过任何介入或手术治疗的外周动脉闭塞性疾病患者腹主动脉及下肢动脉的成像准确性。
22例外周血管闭塞性疾病患者（16例男性，6例女性，年龄范围44 - 85岁）接受了腹主动脉及下肢的MDCTA检查。在3个月内对同一区域进行了数字减影血管造影（DSA）检查。由2名介入放射科医生对图像进行盲法解读，并与数字减影血管造影结果进行比较。
MDCTA的敏感性和特异性分别为92%和94%，阳性预测值和阴性预测值分别为93%和95%。总体诊断准确性为93%。MDCTA在所有病例中均能正确识别正常动脉段和100%闭塞情况。小腿部中度狭窄段的解读似乎更具争议性，但该区域的准确性与更近端动脉的准确性相比，未发现统计学差异。
与DSA相比，腹主动脉及下肢的MDCTA在临床实践中是一种可行、准确的成像方式。
