FIGURE 1. IOUS visualization of a cranial retrohepatic dissection (A, transverse view; B, sagittal view). A long heavy curved Kelly clamp is inserted between the pocket-like space between the MHV and RHV. The clamp tip is clearly visualized as a strongly hyperechoic structure with a reverberation artifact (arrow). MHV, middle hepatic vein; RHV, right hepatic vein; IVC, inferior vena cava.