Figure 4
From: Realization of real-time X-ray stereoscopic vision during interventional procedures
(a) In a 60-year-old man with TIPS placement, duplicate X-ray images of indirect portography at different rotation angles were horizontally combined to realize X-ray stereo vision to overcome repeated puncture failure. Observation with VR glasses produced stereo vision for easily identifying spatial relationships (the left portal vein was located at the left rear of the puncture needle). (b) After the puncture angle was adjusted toward the right rear, the puncture needle successfully entered the right portal vein. The subsequent portography confirmed that the needle had entered the right portal vein toward the right rear of the previous position.
