Real-time and Doppler US after pediatric segmental liver transplantation : I. Portal vein stenosis.

Pediatric Radiology
Lisa SuzukiGiovanni Guido Cerri

Abstract

Accurate diagnosis of portal vein (PV) stenosis by real-time and color Doppler US (CD-US) after segmental liver transplantation in children can decrease morbidity by avoiding unnecessary biopsy, PV hypertension, thrombosis and loss of the graft. To evaluate CD-US parameters for the prediction of PV stenosis after segmental liver transplantation in children. We retrospectively reviewed 61 CD-US examinations measuring the diameter at the PV anastomosis, velocities at the anastomosis (PV1) and in the segment proximal to the anastomosis (PV2), and the PV1/PV2 velocity ratio. The study group comprised patients with stenosis confirmed by angiography and the control group comprised patients with a good clinical outcome. PV stenosis was seen in 12 CD-US examinations. The mean PV diameter was smaller in the study group (2.6 mm versus 5.7 mm) and a PV diameter of <3.5 mm was highly predictive of stenosis (sensitivity 100%, specificity 91.8%). A PV diameter of <3.5 mm is a highly predictive CD-US parameter for the detection of hemodynamically significant stenosis on angiography.

References

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Citations

May 25, 2011·Annals of Biomedical Engineering·Mikhail LaraKerem Pekkan
Dec 17, 2009·Journal of Pediatric Surgery·Kwong Leung ChanJohn Wong
Jul 19, 2018·American Journal of Transplantation : Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons·A C B S CavalcanteJ Seda-Neto
Nov 27, 2014·Pediatric Transplantation·Seyed Kamran Hejazi KenariReza F Saidi
Oct 20, 2018·Pediatric Transplantation·Eric J MonroeAndre A S Dick

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