Multidetector row CT angiography of the abdominal aorta and lower extremities in patients with peripheral arterial occlusive disease: Diagnostic accuracy and interobserver agreement

Maurizio Romano, Pier Paolo Mainenti, Massimo Imbriaco, Bruno Amato, Karim Markabaoui, Oscar Tamburrini, Marco Salvatore

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To evaluate the accuracy of four channel multidetector row CT angiography (MDCTA) of the abdominal aorta and lower extremities arteries compared with digital subtraction angiography (DSA). Materials and methods: In our prospective study 42 patients with peripheral vascular occlusive disease (27 M, 15 F, age range 40-79 years) underwent MDCTA and DSA within 5 days. Images were blindly interpreted by two radiologists. Maximum intensity projections (MIP), multiplanar (MPR) reformations, three-dimensional (3D) reconstructions as well as axial images were available for analysis of MDCTA. DSA were analyzed on hard copies. Results: Overall sensitivity and specificity of MDCTA were 93 and 95%, respectively, with positive and negative predictive values of 90 and 97%. Overall diagnostic accuracy was 94%. 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 of MDCTA in the infrapopliteal district arteries was noted with respect to accuracy in the more proximal arterial bed. Good to excellent interobserver and intraobserver agreement were observed, with k values greater than 0.80. Conclusions: MDCTA of the abdominal aorta and lower extremities is an accurate imaging modality in clinical practice when compared with DSA.

Original languageEnglish
Pages (from-to)303-308
Number of pages6
JournalEuropean Journal of Radiology
Volume50
Issue number3
DOIs
Publication statusPublished - Jun 2004

Keywords

  • Angiography arteries
  • Comparative studies
  • Computed tomography
  • Extremities angiography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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