Variability in Liver Size Measurements Using Different View Angles in Ultrasound Imaging.

Autor: Gao J; Rocky Vista University, Montana College of Osteopathic Medicine, Billings, Montana, USA., Flick A; Rocky Vista University, Montana College of Osteopathic Medicine, Billings, Montana, USA., Allen A; Rocky Vista University, Montana College of Osteopathic Medicine, Billings, Montana, USA., Krasnoff M; Rocky Vista University, Montana College of Osteopathic Medicine, Billings, Montana, USA., Kinder D; Rocky Vista University, Montana College of Osteopathic Medicine, Billings, Montana, USA., Nguyen T; Department of Radiology, Billings Clinic, Billings, Montana, USA.
Jazyk: angličtina
Zdroj: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine [J Ultrasound Med] 2024 Dec; Vol. 43 (12), pp. 2345-2355. Date of Electronic Publication: 2024 Sep 09.
DOI: 10.1002/jum.16570
Abstrakt: Purpose: The aim of this study was to compare liver size measurements in different conventional B-mode ultrasound image (US) field views using magnetic resonance imaging (MRI) measurement as a reference.
Methods: After receiving Institutional Review Board approval and informed consent, three operators measured the largest sagittal and transverse dimensions of adult livers on three US image field views (90°, 120°, and 140°) with a single curvilinear transducer. We analyzed the differences in liver size across three image field views using one-way analysis of variance (ANOVA) and examined the correlations between MRI and ultrasound measurements using Spearman regression. We used 95% Bland-Altman limits of agreement (95% LOA) to analyze the confidence interval for liver size measurements between MRI and US. Intra-observer and inter-observer reliability in measuring liver size were assessed using intraclass correlation coefficient (ICC).
Results: Based on sagittal liver length, 28 adult participants (7 men and 21 women, mean age 43 years) were divided into Group 1 (<17 cm, n = 10) or Group 2 (≥17 cm, n = 18). There was a significant difference in the liver size measurements across the three image field views (P < .001) in both groups. The highest correlation in liver size measurements between MRI and US was with ultra-wide-view (R 2  = .87 in sagittal; R 2  = .79 in transverse). Bland-Altman LOA also indicated good agreement between MRI and ultra-wide-view measurements. Intra-observer and inter-observer reliability in measuring liver size were good (ICC = 0.82-0.98).
Conclusion: The study suggests that ultrasound ultra-wide-view provides the most accurate liver size measurement and good intra- and inter-operator reliability.
(© 2024 American Institute of Ultrasound in Medicine.)
Databáze: MEDLINE
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