APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The four segments of right liver are: V (right anteroinferior); VI (right posteroinferior); VII (right posterosuperior) and VIII (right anterosuperior). The caudate lobe is often called an independent segment. Three vertical planes and a transverse plane divide the liver into four sectors and eight segments.

Detailed explanation-2: -Based on Couinaud classification, the liver is divided into eight independent functional segments (Figs. 6 and 7). Each segment has its own portal pedicle consisting of the hepatic arterial branch, portal branch, and the bile duct with a sepa-rate hepatic venous branch that provides outflow (Fig.