ArticleQuantitative imaging in medicine and surgery2026
Black-blood computed tomography with contrast-enhancement boost for optimized portal vein imaging and segmentation: a feasibility study.
Article in Quantitative imaging in medicine and surgery, 2026. 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
Background: Clear visualization of the portal vein is essential for managing liver diseases such as those requiring transplantation and portal hypertension. However, abdominal computed tomography angiography (CTA) is often challenged by poor vascular contrast and lingering arterial signals, complicating manual segmentation. This study assesses the feasibility and effectiveness of using contrast-enhancement boost (CE-boost) and black-blood computed tomography (BBCT) techniques to improve image quality and reduce the manual segmentation time of the portal venous system in abdominal CTA. Methods: In this retrospective study, 50 patients undergoing abdominal CTA were processed by three methods: conventional portal venous phase (Group A), CE-boost images (Group B), and combined CE-boost with BBCT images (Group C). Subjective image quality was scored by two experienced radiologists, whereas objective metrics [signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR)] were calculated from standardized region of interest (ROI) measurements. Manual segmentation times were recorded. Statistical analyses employed intraclass correlation coefficient (ICC) for interobserver agreement, Kruskal-Wallis test for subjective scores, and one-way analysis of variance (ANOVA) for objective metrics, with P<0.05 denoting significance. Results: Group C demonstrated significantly higher subjective image quality scores (median 5.0 Conclusions: The synergistic integration of CE-boost and BBCT markedly enhances portal vein visualization and substantially accelerates manual segmentation.
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