Subtracted versus non-subtracted digital imaging in peripheral angiography

U. Fink, S. Heywang, B. Mayr, H. Berger

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Digital 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 the 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.

Original languageEnglish
Pages (from-to)236-240
Number of pages5
JournalEuropean Journal of Radiology
Issue number4
StatePublished - 1989
Externally publishedYes


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