[Radiologic after-care of transjugular intrahepatic stent shunt (TIPSS)]].

The transjugular intrahepatic stent-shunt (TIPSS) is a well accepted minimal invasive therapy for complications of portal hypertension: recurrent variceal bleeding, refractory ascites and liver failure due to the Budd-Chiari syndrome. The high frequency of shunt stenoses and occlusions makes regular follow up examinations essential. Despite modern non invasive imaging methods direct portography still is the gold standard for shunt surveillance in TIPSS.

[The intra-arterial calcium stimulation test in site diagnosis for surgical therapy of insulinoma].

Background: Approximately 10% of all insulinomas--the most common neuroendocrine pancreatic tumor--occur in multiple sites of the pancreas (e.g., multiple endocrine neoplasia type I) and rarely as islet cell hyperplasia.

[Follow-up of TIPSS by color-coded duplex sonography using an ultrasonic signal enhancer. First results].

A study was performed to determine the visualization of the transjugular intrahepatic portosystemic stent shunt (TIPSS) and the detection of stenosis by the use of a capillary transversing signal enhancer. In 37 patients 37 colour-coded duplex sonographies were performed before and after intravenous injection of the ultrasound signal enhancer Levovist (Schering, Berlin). The examinations were evaluated using a four-category score.