Fully automated frame selection and region-of-interest placement in 2D shear wave elastography: reduced examination time with comparable reproducibility in diffuse liver disease

作者：Hyo-Jin Kang, Jeong Hee Yoon, Jeong Min Lee · 发表于：ULTRASONOGRAPHY · 年份：2025 · DOI：10.14366/usg.25161 · 被引用次数：1 · 研究领域：Ultrasound Imaging and Elastography、Liver Disease Diagnosis and Treatment、Bone health and osteoporosis research

PURPOSE: This study evaluated the clinical utility of a fully automated two-dimensional shear wave elastography (2D-SWE) method incorporating automated frame selection and region-of-interest (ROI) placement algorithms in participants with diffuse liver disease. The analysis assessed examination time and reproducibility compared with semi-automated and manual methods. METHODS: This prospective study included 40 participants who underwent liver stiffness measurements with a Samsung Medison ultrasound system using three. METHODS: fully automated (automated frame selection via a reliability indicator derived from elasticity uniformity and the reliability measurement index, with automated ROI placement); semi-automated (automated frame selection with manual ROI placement); and manual (fully operator-controlled). Examination time and inter-method (n=40), intra-observer (n=21), and inter-observer (n=15) variabilities were analyzed using analysis of variance, paired t-tests, and intraclass correlation coefficients (ICCs). All participants underwent comparative measurements with a Canon i800 system for cross-platform analysis. RESULTS: One technical failure each occurred during the intra-observer and cross-platform measurement sessions. Fully automated measurement significantly reduced total examination time (14.38±5.01 seconds) compared to semi-automated (30.46±7.11 seconds, P<0.001) and manual (33.05±7.10 seconds, P<0.001) measurements. No significant differences in liver stif...