Spiral CT During Selective Accessory Renal Artery Angiography: Assessment of Vascular Territory Before Aortic Stent-Grafting
- Department of Radiology, University of Vienna, AKH, Waehringer Guertel 18-20, A-1090 Vienna (Austria)
- Department of Vascular Surgery, University of Vienna, AKH, Waehringer Guertel 18-20, A-1090 Vienna (Austria)
We evaluated the vascular territory of accessory renal arteries in cases where the vessel might be overlapped by an aortic stent-graft. Spiral CT during selective accessory renal artery angiography was performed in four patients with abdominal aortic aneurysms (including one with a horseshoe kidney). The volume of the vascular territory of each renal artery was measured using a software program provided by the CT unit manufacturer. The supernumerary renal arteries perfused 32%, 37%, 15%, and 16% of the total renal mass, respectively. In two patients, stent-grafts were implanted, which resulted in occlusion of the supernumerary renal artery. The volume of the renal infarction was equal to the volume perfused by the artery as calculated before implantation of the stent-graft.The method proposed is accurate for estimating the size of the expected renal infarction. It might help to determine whether placement of a stent-graft is acceptable.
- OSTI ID:
- 21080419
- Journal Information:
- Cardiovascular and Interventional Radiology, Vol. 21, Issue 2; Other Information: DOI: 10.1007/s002709900239; Copyright (c) 1998 Springer-Verlag New York Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 0174-1551
- Country of Publication:
- United States
- Language:
- English
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