Abstract
In 21 patients with sonographic signs of occlusions or stenoses of the splenoportal axis additionally pulsed Doppler measurements in the region of the splenic and portal veins were conducted with a Duplex system. Examinations using the pulsed Doppler Duplex system yield functional data in respect of blood flow in addition to the analysis of morphological changes. It is possible to differentiate between cystic structures and collaterals as well as to assess residual perfusions or cavernous transformations in vascular occlusions. Besides qualitative information on blood flow in a vessel and determination of the direction of blood flow, quantitative data on the acceleration of blood flow in stenosis are also possible.
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