Objectives—This study was intended to establish normal values for velocities in the hepatic artery and portal veins in pediatric patients after total pancreatectomy and islet autotransplantation (TPIAT). Methods—A retrospective review was performed of liver Doppler studies in pediatric patients after TPIAT over 6 years at an academic children’s hospital. Doppler velocities in the liver vasculature and the hepatic artery resistive index were recorded. Results—Sixty-five pediatric patients were evaluated. There were no cases of portal vein thrombosis or other hepatic vascular complications. The mean hepatic artery peak systolic velocity was 157.6 cm/s (SE, 60.9 cm/s), with a mean resistive index of 0.57 (SE, 0.09). The mean main portal vein velocity was 31.9 cm/s (SE, 12.9 cm/s). Conclusions—Portal vein thrombosis is rare in pediatric patients after TPIAT. A wide range of hepatic artery and portal vein velocities are encountered in children immediately after TPIAT without hepatic vascular complications and can be considered normal.
Bibliographical noteFunding Information:
We thank Melena Bellin, MD, Islet Auto transplant Program director of research, Department of Pediatrics, University of Minnesota Masonic Children’s Hospital, for her expertise and advice in the postoperative treatment of pediatric patients who underwent total pancreatectomy and islet autotransplantation. The research reported in this article was supported by the National Center for Advancing Translational Sciences of the National Institutes of Health (award UL1TR000114). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. These data were presented as a poster at the 2017 Society for Pediatric Radiology Annual Meeting; May 16–20, 2017; Vancouver, British Columbia, Canada and at the American Institute of Ultrasound in Medicine 2018 Convention, March 25th, 2018; New York, USA.
© 2018 by the American Institute of Ultrasound in Medicine.
- Doppler (abdominal)
- Islet autotransplantation
- Islet cell