Extended field of view ultrasound imaging to evaluate Achilles tendon length and thickness: a reliability and validity study
Extended field of view ultrasound imaging to evaluate Achilles tendon length and thickness: a reliability and validity study
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DOI：
10.11138/mltj/2016.6.1.104
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发表时间：
2016-01-01
影响因子：
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通讯作者：
Varrecchia, Shaun
中科院分区：
文献类型：
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作者：
Silbernagel, Karin Gravare;Shelley, Kristen;Varrecchia, Shaun
背景：跟腱损伤后结构改变很常见，并与功能恢复相关。简单、廉价、有效、可靠的跟腱结构测量方法在研究和临床上都是有用的。本研究的目的是进行扩展视野（EFOV）超声（US）成像的Achilles tendon.Methods的可靠性和有效性措施：8具尸体（16肌腱）被用于验证研究比较跟腱长度测量从美国图像与实际测量长度从解剖肌腱。结果：跟骨和腓肠肌之间的长度与尸体测量值的相关性最好（ICC=0.895），跟骨和比目鱼肌之间的长度与尸体测量值的相关性最好（ICC=0.744）。肌腱长度测量的肢体间可靠性极佳（ICC 0.886-0.940），跟骨至比目鱼肌的测量标准误差（SEM）为0.64 cm，跟骨至腓肠肌的测量标准误差为0.67 cm。日间重测信度也很好（ICC= 0.898-0.944）。结论：本研究支持使用EFOV US成像作为确定跟腱长度和厚度的可靠和有效的方法，并使用未受伤肢体进行比较。
Background: Achilles tendon structural changes are common after injury and correlate with recovery of function. Having simple, inexpensive, yet valid and reliable measures of Achilles tendon structure are useful both in research and clinical. The purpose of this study was to perform reliability and validity measures of extended field of view (EFOV) ultrasound (US) imaging of the Achilles tendon.Methods: eight cadavers (16 tendons) were used for the validation study to compare Achilles tendon length measurements from US images with actual measured length from dissected tendons. Nine healthy subjects (18 tendons) were included in the test-retest evaluation.Results: the correlation between the US images and cadaveric measurements was excellent (ICC=0.895) for the length between calcaneus and the gastrocnemius and good (ICC=0.744) for the length between the calcaneus and the soleus. The between-limb reliability was excellent (ICC 0.886-0.940) for the tendon length measurements with standard error of measurements (SEM) of 0.64 cm for calcaneus to soleus and 0.67 cm for calcaneus to gastrocnemius. Between-day test-retest reliability was also excellent (ICC= 0.898-0.944).Conclusion: this study supports the use of EFOV US imaging as a reliable and valid method to determine Achilles tendon length and thickness, and using the uninjured limb for comparison.