ArticleDiagnostic and interventional radiology (Ankara, Turkey)2025
Grading portal vein stenosis following partial hepatectomy by high-frequency ultrasonography: an
Article in Diagnostic and interventional radiology (Ankara, Turkey), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate the diagnostic value of ultrasound in grading portal vein stenosis (PVS) in a rat model of 70% partial hepatectomy (PH).
methodsA total of 96 Sprague-Dawley rats were randomly divided into a PH group and PVS groups with mild, moderate, and severe PVS following PH. Hemodynamic parameters were measured using high-frequency ultrasound (5-12 MHz high-frequency linear transducer), including pre-stenotic, stenotic, and post-stenotic portal vein diameters (PVD
resultsPortal vein hemodynamics showed gradient changes as PVS aggravated. For identifying >50% PVS, PVD
conclusionHigh-frequency ultrasonography can be used to grade PVS in rats, with PVD CLINICAL SIGNIFICANCE: Ultrasonography serves as a first-line technology for diagnosing PVS following LDLT. However, the grading criteria for PVS severity remain unclear. Investigating the use of ultrasonic hemodynamics in the early diagnosis of PVS and grading stenosis severity is important for early postoperative intervention and improving recipient survival rates.
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