Diagnostic ultrasound ( PDFDrive )

A
B
C
D
E
F
G
FIG. 51.2 Anatomy of Segmental Portal Veins. (A) Left hepatic lobe, shown on a dissected specimen (with pale-blue dye in portal vein); (B)
on a subxiphoid transverse sonogram; (C) on computed tomography (CT) scan; and (D) on more cephalad transverse sonogram. The left portal
vein, with branches to segments 2, 3, and 4, forms a horizontally placed H. The umbilical portion of the left portal vein forms the crossbar of the
H. Falciform ligament (arrows in [A] and [C] and F in [D]) is an extension of the umbilical part of the left portal vein. (E) Right hepatic lobe of a
dissected specimen, and (F) on a transverse sonogram obtained at the branch point of the main portal vein into right and left branches. (G) Left
and right, Diagrams of the portal vein branches to the left and right lobes. Portal vein branches to segments 5 through 8 and 6 and 7 form the
main limbs of the H, and the right portal vein forms its crossbar. Once again, the H is turned horizontally. (With permission from Bismuth H. Surgical
anatomy and anatomical surgery of the liver. World J Surg. 1982;6[1]:3-9. 1 )