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Effective doses in angiography and interventional radiology: calculation of conversion coefficients for angiography of the lower limbs

¹ SCK-CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, ² Department of Radiology, University Hospitals of the KU Leuven, Herestraat 49, 3000 Leuven and ³ Free University of Brussels, Pleinlaan 2, 1050 Brussels, Belgium

View larger version (41K): [in a new window]   Figure 1. Radiation fields for exposure of the abdomen, pelvis and upper legs in the six hospitals. The anteroposterior (AP)-projection of the pelvis in hospital C is illustrated by the bold rectangle. The field for exposure of the upper legs, adjoins the AP projection of the pelvis.

View larger version (34K): [in a new window]   Figure 2. Low and high level for (a) the abdomen and (b) the pelvis exposure in the factorial experiment. In practice, the fields have the same horizontal dimensions. In the figures they are offset to illustrate the different fields more clearly.