Evaluating Imaging for Rex Shunt Planning
Author Information
Author(s): Kwan Sharon W., Fidelman Nicholas, Durack Jeremy C., Roberts John P., Kerlan Robert K. Jr
Primary Institution: University of California San Francisco
Hypothesis
The study aims to evaluate the diagnostic capability of different imaging modalities used for preoperative Rex shunt planning.
Conclusion
Computed tomographic arterial portography is the most reliable imaging modality for assessing left portal vein patency, superior mesenteric vein patency, and intrahepatic portal vein contiguity.
Supporting Evidence
- CTAP allowed for confident assessment of left PV patency in 100% of studies.
- Single phase CECT, multi-phase CECT, and CEMR enabled determination of left PV patency in 33.3%, 80.0%, and 75.0% of studies, respectively.
- Transhepatic portography provided the greatest diagnostic capability for the left PV among planar angiographic techniques, at 90.9%.
Takeaway
Doctors used different types of imaging to see if patients could get a special surgery for a blocked vein, and they found that one type of scan worked best.
Methodology
The study involved a retrospective review of imaging studies from 20 patients with extrahepatic portal vein thrombosis.
Limitations
The study did not compare the accuracy of different imaging modalities and was limited by non-standardized imaging protocols.
Participant Demographics
20 patients (9 male, 11 female, mean age 26 years, age range 19 months to 65 years)
Statistical Information
P-Value
0.039
Statistical Significance
p=0.039
Digital Object Identifier (DOI)
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