Abstract:
BACKGROUND:Accurate diagnosis of hepatic vein (HV) stenosis by real-time and color Doppler US (CD-US) after segmental liver transplantation in children can decrease morbidity because it allows unnecessary biopsy, obstruction or thrombosis and loss of the graft to be avoided. OBJECTIVE:To evaluate CD-US parameters to predict HV stenosis after segmental liver transplantation in children. MATERIALS AND METHODS:Retrospective review of 79 CD-US examinations measuring velocity at the HV anastomosis (HV1) and the main trunk 1-2 cm proximal to the HV/IVC anastomosis (HV2), the HV1/HV2 ratio and the spectral waveform of HV2. The study group comprised patients with stenosis confirmed by angiography. The control group comprised patients with a good clinical outcome. RESULTS:HV stenosis was seen in 12 CD-US examinations. The mean HV1/HV2 ratio was higher in the study group (6.0 versus 4.0). An HV1/HV2 ratio of >4.1 was predictive of HV stenosis (sensitivity 83%, specificity 76%). CONCLUSION:An HV1/HV2 ratio of >4.1 is a highly predictive CD-US parameter for the detection of hemodynamically significant HV stenosis on angiography.
journal_name
Pediatr Radioljournal_title
Pediatric radiologyauthors
Suzuki L,de Oliveira IR,Widman A,Gibelli NE,Carnevale FC,Maksoud JG,Hubbard AM,Cerri GGdoi
10.1007/s00247-007-0731-7subject
Has Abstractpub_date
2008-04-01 00:00:00pages
409-14issue
4eissn
0301-0449issn
1432-1998journal_volume
38pub_type
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