肌肉回声强度和分形维数检测脆性表型的诊断价值。

IF 2.5 4区 医学 Q1 ACOUSTICS
Ultrasonic Imaging Pub Date : 2021-11-01 Epub Date: 2021-07-08 DOI:10.1177/01617346211029656
Rebeca Mirón Mombiela, Jelena Vucetic, Paloma Monllor, Jenny S Cárdenas-Herrán, Paloma Taltavull de La Paz, Consuelo Borrás
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引用次数: 2

摘要

探讨肌肉回声强度(EI)与分形维数(FD)之间的关系,以及两种超声参数对虚弱表型鉴别的诊断价值。对先前队列(2014年11月- 2015年2月)的超声扫描结果进行回顾性分析。样本包括健康参与者r =。38, p p = .001),具有较高的内比值(ICC: 0.98, 95%CI: 0.98-0.99);p p p = .18)。肌肉FD与EI相关,并根据虚弱表型表现出不同的模式,EI优于FD作为虚弱的可能诊断工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Diagnostic Performance of Muscle Echo Intensity and Fractal Dimension for the Detection of Frailty Phenotype.

To determine the relationship between muscle echo intensity (EI) and fractal dimension (FD), and the diagnostic performance of both ultrasound parameters for the identification of frailty phenotype. A retrospective interpretation of ultrasound scans from a previous cohort (November 2014-February 2015) was performed. The sample included healthy participants <60 years old, and participants ≥60 divided into robust, pre-frail, and frail groups according to Fried frailty criteria. A region of interest of the rectus femoris from the ultrasound scan was segmented, and histogram function was applied to obtain EI. For fractal analysis, images were processed using two-dimensional box-counting techniques to calculate FD. Statistical analyses were performed with diagnostic performance tests. A total of 102 participants (mean age 63 ± 16, 57 men) were evaluated. Muscle fractal dimension correlated with EI (r = .38, p < .01) and showed different pattern in the scatter plots when participants were grouped by non-frail (control + robust) and frail (pre-frail + frail). The diagnostic accuracy for EI to categorize frailty was of 0.69 (95%CI: 0.59-0.78, p = .001), with high intra-rater (ICC: 0.98, 95%CI: 0.98-0.99); p < .001) and inter-rater (ICC: 0.89, 95%CI: 0.75-0.95; p < .001) reliability and low measurement error for both parameters (EI: -0.18, LOA95%: -10.8 to 10.5; FD: 0.00, LOA95%: -0.09 to 0.10) in arbitrary units. The ROC curve combining both parameters was not better than EI alone (p = .18). Muscle FD correlated with EI and showed different patterns according to frailty phenotype, with EI outperforming FD as a possible diagnostic tool for frailty.

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来源期刊
Ultrasonic Imaging
Ultrasonic Imaging 医学-工程:生物医学
CiteScore
5.10
自引率
8.70%
发文量
15
审稿时长
>12 weeks
期刊介绍: Ultrasonic Imaging provides rapid publication for original and exceptional papers concerned with the development and application of ultrasonic-imaging technology. Ultrasonic Imaging publishes articles in the following areas: theoretical and experimental aspects of advanced methods and instrumentation for imaging
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