Assessment of the supraspinatus muscle fiber architecture with diffusion tensor imaging in healthy volunteers.

IF 4.1 2区医学 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Insights into Imaging Pub Date : 2024-10-09 DOI:10.1186/s13244-024-01800-x

Adrian Alexander Marth, Stefan Sommer, Georg Wilhelm Kajdi, Sophia Samira Goller, Thorsten Feiweier, Reto Sutter, Daniel Nanz, Constantin von Deuster

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引用次数: 0

Abstract

Objectives: This study presents a framework for the calculation of supraspinatus (SSP) muscle pennation angles (PAs) from diffusion tensor imaging (DTI).

Materials and methods: Ten healthy individuals (five females and five males; age 32.0 ± 4.7 years) underwent three sessions of 3-T MRI, including a stimulated echo acquisition mode DTI sequence. The imaging plane of the DTI sequence was angled along the intramuscular part of the SSP tendon. A custom-built software was developed and implemented to compute DTI-based PAs of the anterior and posterior SSP in relation to the orientation of the tendon. Subsequently, three readers measured PAs from the post-processed images. Test-retest reliability, inter-reader agreement, and intra-reader agreement of PA measurements were evaluated with intraclass correlation coefficients (ICCs).

Results: The mean PA in the anterior SSP was 15.6 ± 2.1° and 10.7 ± 0.9° in the posterior SSP. MRI-derived PAs showed good to excellent test-retest reliability (ICC: 0.856-0.945), inter-reader agreement (ICC: 0.863-0.955), and intra-reader agreement (ICC: 0.804-0.955).

Conclusion: PAs derived from DTI demonstrated good to excellent test-retest reliability, inter-reader agreement, and intra-reader agreement. We successfully implemented a highly standardized technique for evaluating PAs of the SSP muscle.

Critical relevance statement: This proposed low-complex method might facilitate the increased use of the PA as a biomarker for pathological conditions of the rotator cuff.

Key points: A low-complex method for measuring PAs of the SSP might help identify pathology early. The mean PA was 15.6 ± 2.1° and 10.7 ± 0.9° in the anterior and posterior SSP, respectively. ICCs were ≥ 0.856 for test-retest reliability, ≥ 0.863 for inter-reader agreement, and ≥ 0.804 for intra-reader agreement.

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利用弥散张量成像技术评估健康志愿者的冈上肌纤维结构。

目的：本研究提出了从弥散张量成像（DTI）计算冈上肌奔马角（PA）的框架：本研究提出了一个通过扩散张量成像（DTI）计算冈上肌奔马角（PA）的框架：10 名健康人（5 名女性和 5 名男性；年龄 32.0 ± 4.7 岁）接受了三次 3 T MRI 扫描，包括刺激回波采集模式 DTI 序列。DTI 序列的成像平面沿 SSP 肌腱肌内部分倾斜。开发并实施了一个定制软件，用于计算与肌腱方向相关的前部和后部 SSP 的基于 DTI 的 PA。随后，三位读者根据后处理图像测量了PA。通过类内相关系数（ICC）评估了PA测量的重测可靠性、读数间一致性和读数内一致性：结果：前SSP的平均PA为15.6 ± 2.1°，后SSP的平均PA为10.7 ± 0.9°。MRI 导出的 PA 显示出良好至卓越的测试-重复测试可靠性（ICC：0.856-0.945）、读数间一致性（ICC：0.863-0.955）和读数内一致性（ICC：0.804-0.955）：结论：从 DTI 得出的 PAs 在测试-重复测试可靠性、读数者之间的一致性和读数者内部的一致性方面都表现出了良好到卓越的水平。我们成功地采用了一种高度标准化的技术来评估 SSP 肌肉的 PAs：关键相关性声明：这一低复杂度方法可能有助于将 PA 作为肩袖病理状况的生物标志物：要点：测量SSP PA的低复杂度方法可能有助于早期发现病变。SSP前部和后部的平均PA分别为15.6 ± 2.1°和10.7 ± 0.9°。测试重复可靠性的 ICC 值≥ 0.856，读数间一致性的 ICC 值≥ 0.863，读数内一致性的 ICC 值≥ 0.804。

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

Insights into Imaging Medicine-Radiology, Nuclear Medicine and Imaging

CiteScore

7.30

自引率

4.30%

发文量

182

审稿时长

13 weeks

期刊介绍： Insights into Imaging (I³) is a peer-reviewed open access journal published under the brand SpringerOpen. All content published in the journal is freely available online to anyone, anywhere! I³ continuously updates scientific knowledge and progress in best-practice standards in radiology through the publication of original articles and state-of-the-art reviews and opinions, along with recommendations and statements from the leading radiological societies in Europe. Founded by the European Society of Radiology (ESR), I³ creates a platform for educational material, guidelines and recommendations, and a forum for topics of controversy. A balanced combination of review articles, original papers, short communications from European radiological congresses and information on society matters makes I³ an indispensable source for current information in this field. I³ is owned by the ESR, however authors retain copyright to their article according to the Creative Commons Attribution License (see Copyright and License Agreement). All articles can be read, redistributed and reused for free, as long as the author of the original work is cited properly. The open access fees (article-processing charges) for this journal are kindly sponsored by ESR for all Members. The journal went open access in 2012, which means that all articles published since then are freely available online.