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- U Fink, S Heywang, B Mayr, and H Berger.
- Department of Radiology, Klinikum Grosshadern, University of Munich.
- Eur J Radiol. 1989 Nov 1;9(4):236-40.
AbstractDigital subtraction angiography (DSA) plays an important role in the management of vascular diseases of the lower extremities. A disadvantage is the lack of an automatically moving table top. We used a 1,024 x 1,024 matrix with a large-screen intensifier system and an automated "stepping" facility. In 161 examinations of the arteries of the lower extremity digital peripheral arteriography was performed with and without the subtraction technique. We compared the influence of different iodine concentrations in DA and DSA. Peripheral DA proved to be equal to peripheral DSA in the region of the pelvis, thigh and knee, with no adequate contrasting being obtained merely in the region of the lower leg arteries in about 45%. It is necessary to use contrast medium at a concentration of 300 mg I/ml. The installation of an automated "stepping" facility reduces the amount of contrast medium needed and the exposure time.
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