CT angiography versus intraarterial digital subtraction angiography for assessment of aortoiliac occlusive disease.

6533b7dbfe1ef96bd126f850

RESEARCH PRODUCT

CT angiography versus intraarterial digital subtraction angiography for assessment of aortoiliac occlusive disease.

Franz Schweden O. Rieker Achim Neufang Manfred Thelen Michael B. Pitton Christoph Düber

subject

Male medicine.medical_specialty Aortic Diseases Aortoiliac occlusive disease Arterial Occlusive Diseases Iliac Artery Sensitivity and Specificity Suprarenal Aorta medicine.artery medicine Humans Radiology Nuclear Medicine and imaging cardiovascular diseases Aorta Abdominal Prospective Studies Observer Variation Aorta medicine.diagnostic_test business.industry Vascular disease musculoskeletal neural and ocular physiology Angiography Angiography Digital Subtraction General Medicine Digital subtraction angiography Middle Aged medicine.disease Stenosis Angiography Arterial Occlusive Diseases Radiology business Tomography X-Ray Computed psychological phenomena and processes

description

The purpose of this study was to evaluate the accuracy of CT angiography (CTA) with a single helical acquisition for assessment of stenoses and occlusions of the iliac arteries.In our prospective study, intraarterial digital subtraction angiography and IV CTA were performed from the suprarenal aorta to below the femoral bifurcation in 30 patients with vascular occlusive disease. Maximum-intensity-projection images in multiple views were also obtained. The accuracy of CTA with and without analysis of axial images was determined.Sensitivity and specificity of CTA were 100% for iliac artery occlusions with a confidence interval 85-100% and 97-100%, respectively. When axial scans were interpreted, 14 of 15 high-grade (75%) stenoses were recognized. Sensitivity and specificity of CTA were 93% (range, 68-100%) and 99% (range, 97-100%), respectively. When maximum intensity projections alone were analyzed, sensitivity for the diagnosis of 15 high-grade stenoses was only 53% (range, 27-79%) because calcified plaques obscured six stenoses.CTA accurately reveals iliac artery occlusions. Observers of CT angiograms may overlook short stenoses in rare instances. Calcified plaques limit the use of maximum-intensity-projection images.

year	journal	country	edition	language
1997-10-01	AJR. American journal of roentgenology

10.2214/ajr.169.4.9308477 https://pubmed.ncbi.nlm.nih.gov/9308477