Comparison of CT angiography with conventional arterial angiography in aortoiliac occlusive disease

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B Tins1, J Oxtoby, S Patel

  • 1Department of Diagnostic Imaging, North Staffordshire Hospital NHS Trust, Newcastle Road, Stoke on Trent ST4 6QG, UK.

The British Journal of Radiology
|May 8, 2001
PubMed

Insights

Conventional and CT angiography show similar results for aortoiliac occlusive disease. CT angiography offers advantages like minimally invasive imaging and better visualization of stenoses and collaterals.

Area of Science:

  • Vascular Surgery
  • Diagnostic Imaging
  • Radiology

Background:

  • Occlusive disease of the aortoiliac segment significantly impacts peripheral circulation.
  • Accurate assessment of disease severity is crucial for treatment planning.

Purpose of the Study:

  • To compare the diagnostic accuracy and interobserver agreement of conventional angiography and computed tomography (CT) angiography for evaluating the aortoiliac segment.

Main Methods:

  • 35 patients with aortoiliac occlusive disease underwent both conventional and CT angiography.
  • Two independent assessors graded disease severity in the aortoiliac segment.
  • Interobserver agreement and concordance between modalities were analyzed.

Main Results:

  • Conventional angiography had 87% interobserver agreement, while CT angiography had 78%.
  • Both modalities provided identical grading in 84% of segments.
  • CT angiography demonstrated advantages in visualizing soft tissues, asymmetrical stenoses, and collateral supply, despite potential limitations with short stenoses.

Conclusions:

  • CT angiography is a valuable, minimally invasive tool for assessing aortoiliac occlusive disease.
  • While conventional angiography shows slightly higher interobserver agreement, CT angiography provides complementary information beneficial for clinical decision-making.

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