T. Gabata et al., ABERRANT GASTRIC VENOUS DRAINAGE INTO THE MEDIAL SEGMENT OF THE LIVER- DEMONSTRATION BY COLOR DOPPLER SONOGRAPHY, Abdominal imaging, 22(5), 1997, pp. 502-505
Citations number
18
Categorie Soggetti
Gastroenterology & Hepatology","Radiology,Nuclear Medicine & Medical Imaging
Background: Aberrant gastric venous drainage (AGVD) into the posterior
edge of the medial segment of the liver (segment IV) is the main caus
e of pseudolesion on computed tomography (CT) during arterial portogra
phy. We estimated the prevalence of AGVD into the medial segment of th
e liver with color and power Doppler ultrasound (US). Methods: Screeni
ng gray-scale and color Doppler and power Doppler US were performed in
100 consecutive patients. AGVD was defined as a venous structure that
ascended parallel to the main portal vein and drained independently i
nto segment IV. Results: AGVDs were observed in eight of 100 patients
(8%) with color and power Doppler US. Power Doppler US depicted these
veins more clearly than did color Doppler US. Gray-scale US did not sh
ow any AGVDs. Two of eight patients with AGVDs detected by color Doppl
er US underwent celiac arteriography and CT during arterial portograph
y (CTAP). In these two patients, celiac arteriography directly demonst
rated AGVDs draining into segment IV, which revealed nontumorous perfu
sion defects (pseudolesions) on CTAP. Conclusion: Color and power Dopp
ler US are useful imaging methods for demonstrating AGVDs.