A Prospective Study on IVUS and DSA Guidance in the Treatment of Budd-Chiari Syndrome

In the IVUS group, the diameter of the reference vessel (the normal segment of the artery distal to the occlusion) is measured using Intravascular Ultrasound (IVUS). Based on the IVUS measurements, an appropriate balloon is selected to dilate the occluded segment.

The DSA group patients will have the appropriate balloon dilation selected for the occluded segment based on the DSA measurement results.