Figure 4

Nomenclature employed to measure coagulation diameters. After ablations, livers were sectioned along the longitudinal and transverse axes of the "white zone" of coagulation necrosis (gray in figure). Three diameters were measured by consensus of two observers: diameter along applicator track (a) and both perpendicular diameters (i.e., transverse diameters) to the applicator axis (b and c). The perfusion distance is d.