Diagnostic Ultrasound - Abdomen and Pelvis

Venoocclusive Disease
(Left) Grayscale ultrasound of
the liver in a patient with VOD
shows marked hepatomegaly
with craniocaudal length
measuring 22.6 cm. Liver
extension beyond the edge of
the kidney is indicative of
hepatomegaly. (Right)
Grayscale ultrasound of the
spleen shows an enlarged
spleen measuring 15 cm in
length in this patient with
venoocclusive disease.
Diagnoses: Liver
(Left) Grayscale ultrasound
shows a small-caliber hepatic
vein ſt and inferior vena cava
st due to marked liver edema
causing compression upon the
compliant venous structures.
Also note small right pleural
effusion in this patient
with VOD. (Right) Color
Doppler ultrasound of the liver
shows a narrowed middle ſt
and right st hepatic veins due
to diffuse edema of the liver in
this patient with VOD.
(Left) Color Doppler
ultrasound of the liver shows
undetectable flow in the main
portal vein . Portal flow is
hepatofugal in the left portal
vein st and hepatopetal flow
in the right portal vein .
(Right) Power Doppler
ultrasound in the same patient
shows the flow in the main
portal vein is indeed so slow
that it is not detectable ſt
even with power Doppler.
Real-time grayscale imaging
(not shown) was able to
demonstrate slow flow in the
portal vein with moving
rouleaux formation.
http://radiologyebook.com/
195