B-Flow Sonography for Detecting Portal Venous Stenosis After Liver Transplantation

A case of a patient in his early 60s with a portal vein stenosis after liver transplantation (LTx) detected by sonography in B-flow mode is reported. Two weeks after LTx, the patient developed ascites and severe alteration of liver function tests. Color Doppler (CD) demonstrated a stenosis in the po...

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Bibliographic Details
Published in:Journal of diagnostic medical sonography 2006-07, Vol.22 (4), p.253-257
Main Authors: Clevert, D.-A., Stickel, M., Michaely, H. J., Loehe, F., Graeb, C., Steitz, H. O., Strautz, T., Flach, P., Schoenberg, S. O., Jauch, K. W., Reiser, M. F.
Format: Article
Language:English
Subjects:
Care and treatment
Case studies
Causes of
Complications and side effects
Diagnosis
Doppler ultrasonography
Liver
Stenosis
Transplantation
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Summary:A case of a patient in his early 60s with a portal vein stenosis after liver transplantation (LTx) detected by sonography in B-flow mode is reported. Two weeks after LTx, the patient developed ascites and severe alteration of liver function tests. Color Doppler (CD) demonstrated a stenosis in the portal vein with a maximum flow of 340 cm/sec. Due to aliasing, correct assessment of stenosis diameter was not possible by means of CD. However, by using the B-flow imaging technique, slow and fast velocities in the pre-, intra-, and poststenotic segment could be detected without aliasing or overwriting. In addition, a second stenosis in the portal vein was identified. For the follow-up outcome of patients, it is essential to detect and treat this complication. After surgical intervention, graft function recovered and postoperative flow measurements showed a normal portal vein flow of 70 cm/sec in the poststenotic segment.
ISSN:8756-4793
1552-5430
DOI:10.1177/8756479306290730