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Intravenous digital subtraction angiography in patients with aorto-arteritis (Takayasu's)
Insights
Digital subtraction angiography (DSA) effectively diagnoses aorto-arteritis, a common Asian vascular disease. Intravenous (IV) DSA offers good visualization and can replace conventional arteriography, despite needing more contrast media.
Area of Science:
- Vascular Surgery
- Diagnostic Imaging
- Radiology
Background:
- Aorto-arteritis is a prevalent vascular condition in Asia.
- Accurate diagnosis is crucial for effective management.
Purpose of the Study:
- To evaluate the diagnostic utility of digital subtraction angiography (DSA) for aorto-arteritis.
- To compare intravenous (IV) DSA with conventional arteriography.
Main Methods:
- Retrospective analysis of 51 DSA studies in 50 patients with aorto-arteritis.
- Utilized intravenous (IV) DSA in 48 studies and intra-arterial (IA) DSA in 3 studies.
- Assessed visualization quality and diagnostic accuracy.
Main Results:
- Good-to-excellent visualization was achieved in 96% of patients.
- IV DSA clearly demonstrated aorto-arteritis involving the thoraco-abdominal aorta and major branches.
- IV DSA showed comparable or superior results to conventional arteriography.
Conclusions:
- IV DSA is a valuable diagnostic tool for aorto-arteritis, potentially replacing conventional arteriography.
- Limitations include high contrast media requirements and challenges in visualizing intrarenal arteries.
Abstract:
Aorto-arteritis is one of the commonest vascular diseases in China as well as in Japan and other parts of Asia. The results of digital subtraction angiography (DSA) in 50 patients with aorto-arteritis are reported, and the merits and demerits of intravenous (IV) DSA in the diagnosis of this entity are evaluated. Among the 51 studies performed on 50 patients, IV DSA was used in 48, intraarterial (IA) DSA in 3, and good-to-excellent visualization was obtained in 96% of patients. Aorto-arteritis of varying severity and involving the thoraco-abdominal aorta, the iliac arteries, and other major branches was clearly demonstrated by IV DSA. IV DSA, as compared to our previous experience with conventional arteriography in this entity, may be substituted for conventional arteriography in most patients. A large dose of contrast media needed for a complete study is a major deficiency of IV DSA, and it also has limitations for showing the intrarenal arterial branches.