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Computed tomography in aortobifemoral Y grafts
Cardiovascular and Interventional Radiology
|January 1, 1985
Summary
Dynamic CT scans effectively assess aortofemoral bifurcation grafts after surgery. This noninvasive method evaluates graft health, detecting issues like neointima formation and occlusion for better patient follow-up.
Area of Science:
- Vascular Surgery
- Medical Imaging
- Radiology
Background:
- Aortic aneurysms require monitoring after surgical repair.
- Noninvasive methods are needed for follow-up of aortoiliac surgery.
- Dynamic CT offers morphologic and hemodynamic assessment capabilities.
Purpose of the Study:
- To evaluate the utility of dynamic CT in assessing bifurcation prosthesis after aortofemoral surgery.
- To correlate CT findings with clinical outcomes in patients with Y grafts.
Main Methods:
- Dynamic CT scans were performed on 27 patients with Y grafts (Dacron or polytetrafluoroethylene) between 1 month and 7 years postoperatively.
- Graft patency was assessed by contrast medium enhancement.
- Morphologic changes such as neointima formation and dilatation were evaluated.
Main Results:
- Normal CT findings were observed in 16 patients.
- Neointima formation was detected in 6 patients.
- Graft occlusion occurred in 3 patients, and prosthesis dilatation in 2.
- Patent grafts demonstrated contrast enhancement, correlating with clinical findings in all cases.
Conclusions:
- Dynamic CT is a noninvasive tool for evaluating aortofemoral bifurcation grafts.
- It allows assessment of perivascular changes and semiquantitative measurements.
- Dynamic CT can be effectively used for the follow-up of patients undergoing aortofemoral bypass surgery.