Rosner N H, Doris P E
Department of Radiology, St. James Hospital Medical Center, Chicago Heights, IL 60411.
AJR Am J Roentgenol. 1988 Mar;150(3):623-7. doi: 10.2214/ajr.150.3.623.
Duplex sonography and impedance plethysmography were correlated with contrast venography to compare the sensitivity, specificity, and accuracy of the two noninvasive techniques for the diagnosis of femoropopliteal venous thrombosis. Sensitivity, specificity, and accuracy of duplex sonography were 90%, 100%, and 97%, respectively, when compared with venography in 32 patients. Sensitivity, specificity, and accuracy of plethysmography were 100%, 63%, and 72%, respectively, when compared with venography in 25 patients. In 21 patients, plethysmography was either nondiagnostic or could not be done because of clinical difficulties. Eighteen of these patients had diagnostic duplex examinations. Duplex sonography exhibits similar sensitivity but higher specificity than plethysmography. Duplex sonography also permits diagnostic examinations in patients in whom diagnostic plethysmography cannot be performed.
将双功超声检查和阻抗体积描记法与静脉造影术进行对比，以比较这两种非侵入性技术诊断股腘静脉血栓形成的敏感性、特异性和准确性。在32例患者中，与静脉造影术相比，双功超声检查的敏感性、特异性和准确性分别为90%、100%和97%。在25例患者中，与静脉造影术相比，体积描记法的敏感性、特异性和准确性分别为100%、63%和72%。在21例患者中，由于临床困难，体积描记法无法进行诊断或根本无法实施。其中18例患者接受了诊断性双功超声检查。双功超声检查显示出与体积描记法相似的敏感性，但特异性更高。双功超声检查还可对无法进行诊断性体积描记法检查的患者进行诊断性检查。
