2010•Shengwu yixue gongcheng yu linchuangRequires access

Receiver operating characteristic study on color Doppler ultrasound and three-dimensional dynamic contrast-enhanced MR angiography in arteriosclerosis obliterans below knee

DU Xiang-ke

Abstract

Objective To investigate the value of color Doppler ultrasound(CDU) and three-dimensional dynamic contrastenhanced magnetic resonance angiography(3D DCE-MRA) in the diagnosis of arteriosclerosis obliterans in calf artery by receiver operating characteristic(ROC) analysis.Methods Forty-one patients with lower extremity arterial occlusive disease were enrolled,male 34,female 7,aged 48-83 years,mean age 69.10 years.They were examined by CDU and 3D DCE-MRA.The obtained results were compared with DSA and/or surgery.Results The ROC analysis indicated that the detection of occlusive and significant arterial stenosis disease in calf by 3D DCE-MRA was 0.764 6(Az),0.774 5(Az),and by CDU was 0.952 6(Az),0.905 3(Az) respectively.Conclusion The CDU is superior to 3D DCE-MRA in diagnosing of arteriosclerosis obliterans below knee.

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Key concepts: Medicine, Arteriosclerosis obliterans, Receiver operating characteristic, Magnetic resonance angiography, Radiology, Stenosis, Arteriosclerosis, Angiography