Intravenous aortography after aortic dissection repair

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Abstract
Patients [11] were studied after aortic dissection repair, using i.v. angiography with a line-scanned projection radiography prototype. A computed tomographic scanner was modified to produce line-scanned projection images of the aorta, using temporal or dual energy subtraction in combination with i.v. injection of diatrizoate. Excellent visualization of the Dacron graft, persistent intimal flaps and aneurysmal dilation of the aorta were obtained in 9 patients. Patient respiration when temporal subtraction was used and prolonged circulation time contributed to the 2 inadequate studies.