Incidence of portal vein thrombosis complicating liver metastasis as detected by duplex ultrasound.
In a prospective study of 100 patients with liver metastasis using real-time ultrasound, 8 patients (8%) were found to have portal vein thrombosis (PVT). Sixty seven of these patients, which included all with PVT, also underwent duplex examination. Pulsed Doppler showed absent flow in 4 of 8 patients, indicating complete obstruction. The other 4 showed different degrees of flow suggesting incomplete obstruction or collateral formation. We conclude that PVT complicating liver metastasis is not a rare finding.
Department of Diagnostic Radiology, Montreal General Hospital, Quebec, Canada.
M
M
Atri
J
J
de Stempel
P M
PM
Bret
F F
FF
Illescas
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003097:Collateral Circulation; D005260:Female; D006801:Humans; D015994:Incidence; D008113:Liver Neoplasms / Q000150:complications* / Q000556:secondary; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000473:pathology*; D011446:Prospective Studies; D012039:Regional Blood Flow; D013927:Thrombosis / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D014463:Ultrasonography; D014654:Vascular Patency