Prospective evaluation of post-interventional passive expansion of partially dilated transjugular intrahepatic portosystemic shunt (TIPS) stents – A 3D-sonography study

Aim: To prospectively investigate early expansion kinetics of underdilated self-expanding Viatorr stent-grafts used for TIPS-creation within the first six weeks after intervention. Materials and methods: Patients undergoing TIPS-creation with underdilatation of 10 mm Viatorrstent-grafts, received 2D- and 3D-sonography examinations immediately after TIPS-creation, one and six weeks later. Using a commercially available 3D-transducer volume data sets were generated in longitudinal direction of the stent. Orthogonal views of the TIPS within the parenchymal tract were reconstructed from 3D-data. Reconstructed 3D- an…