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Demonstration of extended field-of-view ultrasound's potential to increase the pool of muscles for which in vivo fascicle length is measurable.
Adkins, Amy N; Franks, Patrick W; Murray, Wendy M.
Afiliación
  • Adkins AN; Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA; Arms + Hands Lab, Shirley Ryan AbilityLab (formerly the Rehabilitation Institute of Chicago), Chicago, IL, USA; Edward Hines, Jr. VA Hospital, Hines, IL, USA.
  • Franks PW; Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA.
  • Murray WM; Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA; Department of Physical Medicine & Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Department of Physical Therapy & Human Movement Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Arms + Hands Lab, Shirley Ryan AbilityLab (formerly the Rehabilitation Institute of Chicago), Chicago, IL, USA; Edward Hines, Jr. VA Hospital, Hines, IL, USA. E
J Biomech ; 63: 179-185, 2017 10 03.
Article en En | MEDLINE | ID: mdl-28882331
Static, B-mode ultrasound is the most common method of measuring fascicle length in vivo. However, most forearm muscles have fascicles that are longer than the field-of-view of traditional ultrasound (T-US). As such, little work has been done to quantify in vivo forearm muscle architecture. The extended field-of-view ultrasound (EFOV-US) method, which fits together a sequence of B-mode images taken from a continuous ultrasound scan, facilitates direct measurements of longer, curved fascicles. Here, we test the validity and reliability of the EFOV-US method for obtaining fascicle lengths in the extensor carpi ulnaris (ECU). Fascicle lengths from images of the ECU captured in vivo with EFOV-US were compared to lengths from a well-established method, T-US. Images were collected in a joint posture that shortens the ECU such that entire fascicle lengths were captured within a single T-US image. Resulting measurements were not significantly different (p=0.18); a Bland-Altman test demonstrated their agreement. A novice sonographer implemented EFOV-US in a phantom and in vivo on the ECU. The novice sonographer's measurements from the ultrasound phantom indicate that the combined imaging and analysis method is valid (average error=2.2±1.3mm) and the in vivo fascicle length measurements demonstrate excellent reliability (ICC=0.97). To our knowledge, this is the first study to quantify in vivo fascicle lengths of the ECU using any method. The ability to define a muscle's architecture in vivo using EFOV-US could lead to improvements in diagnosis, model development, surgery guidance, and rehabilitation techniques.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Músculo Esquelético / Antebrazo Tipo de estudio: Diagnostic_studies / Guideline / Prognostic_studies Límite: Adult / Animals / Female / Humans / Male Idioma: En Revista: J Biomech Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Músculo Esquelético / Antebrazo Tipo de estudio: Diagnostic_studies / Guideline / Prognostic_studies Límite: Adult / Animals / Female / Humans / Male Idioma: En Revista: J Biomech Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos
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