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

IF 2.1 4区医学 Q2 ACOUSTICS

Journal of Ultrasound in Medicine Pub Date : 2024-09-09 DOI:10.1002/jum.16570

Jing Gao MD, Andrew Flick BS, Austin Allen BS, Masha Krasnoff BS, Dennis Kinder MD, Trinh Nguyen DO

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引用次数: 0

Abstract

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 (R² = .87 in sagittal; R² = .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.

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超声波成像中使用不同视角测量肝脏大小的变异性

目的：本研究旨在以磁共振成像（MRI）测量为参考，比较不同传统 B 型超声图像（US）视野下的肝脏大小测量结果：在获得机构审查委员会批准和知情同意后，三位操作者在三个 US 图像视野（90°、120° 和 140°）上使用单个曲线换能器测量成人肝脏的最大矢状面和横向尺寸。我们使用单因素方差分析（ANOVA）分析了三个像场视图中肝脏大小的差异，并使用斯皮尔曼回归法检验了核磁共振成像和超声测量之间的相关性。我们使用 95% Bland-Altman 一致性限值（95% LOA）来分析核磁共振成像和超声波测量肝脏大小的置信区间。使用类内相关系数（ICC）评估肝脏大小测量的观察者内部和观察者之间的可靠性：根据肝脏矢状面长度，28 名成年参与者（7 名男性和 21 名女性，平均年龄 43 岁）被分为第 1 组（矢状面 2 = 0.87；横断面 R2 = 0.79）。Bland-Altman LOA 也表明核磁共振成像和超宽视角测量结果之间具有良好的一致性。测量肝脏大小的观察者内和观察者间可靠性良好（ICC = 0.82-0.98）：该研究表明，超声超宽视角可提供最准确的肝脏大小测量，且观察者内部和观察者之间的可靠性良好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Ultrasound in Medicine 医学-核医学

CiteScore

5.10

自引率

4.30%

发文量

205

审稿时长

1.5 months

期刊介绍： The Journal of Ultrasound in Medicine (JUM) is dedicated to the rapid, accurate publication of original articles dealing with all aspects of medical ultrasound, particularly its direct application to patient care but also relevant basic science, advances in instrumentation, and biological effects. The journal is an official publication of the American Institute of Ultrasound in Medicine and publishes articles in a variety of categories, including Original Research papers, Review Articles, Pictorial Essays, Technical Innovations, Case Series, Letters to the Editor, and more, from an international bevy of countries in a continual effort to showcase and promote advances in the ultrasound community. Represented through these efforts are a wide variety of disciplines of ultrasound, including, but not limited to: -Basic Science- Breast Ultrasound- Contrast-Enhanced Ultrasound- Dermatology- Echocardiography- Elastography- Emergency Medicine- Fetal Echocardiography- Gastrointestinal Ultrasound- General and Abdominal Ultrasound- Genitourinary Ultrasound- Gynecologic Ultrasound- Head and Neck Ultrasound- High Frequency Clinical and Preclinical Imaging- Interventional-Intraoperative Ultrasound- Musculoskeletal Ultrasound- Neurosonology- Obstetric Ultrasound- Ophthalmologic Ultrasound- Pediatric Ultrasound- Point-of-Care Ultrasound- Public Policy- Superficial Structures- Therapeutic Ultrasound- Ultrasound Education- Ultrasound in Global Health- Urologic Ultrasound- Vascular Ultrasound