Abstract Reference

Unique Identifier

97315786

Authors

Errington ML, Ferguson JM, Gillespie IN, Connell HM, Ruckley CV, Wright AR
Department of Radiology, Western General Hospital, Edinburgh, UK.

Title

Complete pre-operative imaging assessment of abdominal aortic aneurysm with spiral CT angiography.

Source

Clin Radiol 1997 May;52(5):369-377

Abstract

PURPOSE: A prospective evaluation of spiral CT angiography (SCTA) as the sole pre-operative imaging modality for abdominal aortic aneurysm repair. MATERIALS AND METHODS: Spiral CT angiography was compared with conventional transfemoral angiography in 30 patients and results correlated with surgical findings in 22 patients. The following features were assessed: renal artery number and disease; upper and lower aneurysm extent; aneurysm size; perianeurysmal inflammation; iliac artery disease; radiation dose; and contrast usage. RESULTS: Spiral CT angiography agreed with conventional angiography in all cases of severe stenosis or occlusion of renal arteries and had 90% agreement overall for renal artery disease. Two of nine accessory renal arteries seen at conventional angiography were missed. For showing aneurysm extent SCTA was 100% sensitive, and performed better than conventional angiography. Aneurysm size was better shown with SCTA. In iliac disease SCTA, as performed in this study, was poor for mild-moderate disease, but detected four of six severely stenosed/occluded iliac arteries seen at conventional angiography. Prospective sensitivity for perianeurysmal inflammation was 33%. Radiation dose for SCTA was approximately twice and contrast dose approximately three times that for conventional angiography. CONCLUSION: Spiral CT angiography can provide all the necessary imaging information to plan aneurysm repair in the non-claudicant.

MeSH Heading

Aged

Aortic Aneurysm, Abdominal/surgery

Aortic Aneurysm, Abdominal/radiography*

Aortic Aneurysm, Abdominal/pathology

Aortography/methods*

Arterial Occlusive Diseases/radiography

Arteritis/radiography

Female

Femoral Artery/radiography

Human

Iliac Artery/radiography

Male

Middle Age

Prospective Studies

Radiation Dosage

Renal Artery/radiography

Renal Artery Obstruction/radiography

Sensitivity and Specificity

Support, Non-U.S. Gov't

Tomography, X-Ray Computed/methods*

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