FIGURE 2. IOUS visualization of the clamp tip at the midway point of a retrohepatic dissection (transverse view). The proper hepatic vein for the caudate lobe (PrCV) is visualized (A). A long light curved Kelly clamp is inserted behind the caudal edge of the caudate lobe and passed cranially along the middle plane of the IVC. At the midpoint of the retrohepatic dissection, the relationship between the dissecting course (arrow) and the PrCV is checked (B).