2D shear wave elastography for the assessment of quadriceps entheses-a methodological study.

IF 1.9 3区 医学 Q2 ORTHOPEDICS
Skeletal Radiology Pub Date : 2024-03-01 Epub Date: 2023-08-18 DOI:10.1007/s00256-023-04425-1
Sook Sam Leong, Jeannie Hsiu Ding Wong, Faizatul Izza Rozalli, Fariz Yahya, Ying Chew Tee, Lyana Shahirah Mohamad Yamin, Mazuin Mohd Razalli, Hazlyna Baharuddin
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引用次数: 0

Abstract

Objective: To establish the scanning protocol for 2-dimensional shear wave elastography (SWE) on normal entheses by investigating the possible confounding factors that may increase the variability of measured elasticity.

Material and methods: 30 normal quadriceps entheses were scanned using SWE to compare the stiffness and coefficient variation by changing the ultrasonic coupling gel thickness, knee position, region of interest size, and scanning plane.

Results: No significant difference in median shear wave velocity (SWV) was observed in different coupling gel thicknesses. The median SWV was higher in the knee flexion position than in the extended position (p < 0.001). Increased knee flexion led to stiffer quadriceps enthesis and higher SWV (ρ = 0.8, p < 0.001). The median SWV was higher when the diameter region of interest was 4.0 mm than 2.0 mm (p = 0.001). The median SWV was higher in the transverse plane than in the longitudinal plane (p < 0.001). Strong correlation was found between SWV and the degree of the shear wave to muscle fiber direction (ρ = 0.8, p < 0.001). The coefficient variation was lower in a gel thickness of 2.5 cm, with an extended knee, a region of interest of 2.0 mm, and a longitudinal plane (p > 0.05). For interobserver reliability for the proposed protocol, the intraclass correlation coefficients was 0.763.

Conclusion: In this study, we determined supine position with the knee extended; using 2.0 mm diameter region of interest and image acquisition at the longitudinal plane with thicker layer coupling gel seems most appropriate to reliably image healthy quadriceps entheses with SWE.

二维剪切波弹性成像评估股四头肌内侧--方法学研究。
目的材料与方法:使用 SWE 扫描 30 个正常股四头肌内侧,通过改变超声耦合凝胶厚度、膝关节位置、感兴趣区大小和扫描平面来比较硬度和系数变化:不同耦合凝胶厚度的中位剪切波速度(SWV)无明显差异。膝关节屈曲位的中位剪切波速度高于伸展位(P 0.05)。对于拟议方案的观察者间可靠性,类内相关系数为 0.763:在这项研究中,我们确定了膝关节伸直的仰卧姿势;使用 2.0 毫米直径的感兴趣区和纵向平面的图像采集以及较厚的耦合凝胶层似乎最适合用 SWE 对健康的股四头肌内膜进行可靠成像。
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来源期刊
Skeletal Radiology
Skeletal Radiology 医学-核医学
CiteScore
4.40
自引率
9.50%
发文量
253
审稿时长
3-8 weeks
期刊介绍: Skeletal Radiology provides a forum for the dissemination of current knowledge and information dealing with disorders of the musculoskeletal system including the spine. While emphasizing the radiological aspects of the many varied skeletal abnormalities, the journal also adopts an interdisciplinary approach, reflecting the membership of the International Skeletal Society. Thus, the anatomical, pathological, physiological, clinical, metabolic and epidemiological aspects of the many entities affecting the skeleton receive appropriate consideration. This is the Journal of the International Skeletal Society and the Official Journal of the Society of Skeletal Radiology and the Australasian Musculoskelelal Imaging Group.
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