Validity of real-time ultrasound imaging to measure anterior hip muscle size: A comparison with magnetic resonance imaging

Mendis, MD, Wilson, SJ, Stanton, W and Hides, JA (2010) Validity of real-time ultrasound imaging to measure anterior hip muscle size: A comparison with magnetic resonance imaging. Journal of Orthopaedic and Sports Physical Therapy, 40 9: 577-581. doi:10.2519/jospt.2010.3286


Author Mendis, MD
Wilson, SJ
Stanton, W
Hides, JA
Title Validity of real-time ultrasound imaging to measure anterior hip muscle size: A comparison with magnetic resonance imaging
Journal name Journal of Orthopaedic and Sports Physical Therapy   Check publisher's open access policy
ISSN 0190-6011
1938-1344
Publication date 2010-09
Sub-type Article (original research)
DOI 10.2519/jospt.2010.3286
Volume 40
Issue 9
Start page 577
End page 581
Total pages 5
Place of publication Alexandria, VA, U.S.A.
Publisher American Physical Therapy Association, Orthopedic Section
Collection year 2011
Language eng
Formatted abstract
STUDY DESIGN: Clinical measurement, criterion standard.
OBJECTIVES: To investigate the validity of real-time ultrasound imaging (USI) to measure individual anterior hip muscle cross-sectional area.
BACKGROUND: The hip flexor muscles are important for hip joint function and could be affected by joint pathology or injury. Objectively documenting individual anterior hip muscle size can be useful in identifying muscle size asymmetry and monitoring treatment efficacy for patients with hip problems. USI offers a novel method of measuring individual muscle size in the clinic, but its validity in measuring the anterior hip muscles has not been investigated.
METHODS: Nine healthy participants (5 males, 4 females) underwent imaging of their iliopsoas, sartorius, and rectus femoris muscles with USI and magnetic resonance imaging. Bilateral muscle cross-sectional areas were measured on images from both modalities.
RESULTS: There was no significant difference (P>.05) in mean cross-sectional area measurements from USI and magnetic resonance imaging for each muscle. Agreement between measurements was high for the iliopsoas (left: intraclass correlation coefficient [ICC3,1] = 0.86; 95% confidence interval [CI]: 0.51, 0.97; right: ICC3,1 = 0.88; 95% CI: 0.57, 0.97), sartorius (left: ICC3,1 = 0.82; 95% CI: 0.41, 0.96; right: ICC3,1 = 0.81; 95% CI: 0.39, 0.95), and rectus femoris (left: ICC3,1 = 0.85; 95% CI: 0.49, 0.96; right: ICC3,1 = 0.89; 95% CI: 0.61, 0.97). Reliability of measuring each muscle with USI was high between 2 trials (ICCs3,1 = 0.84 to 0.94).
CONCLUSION: USI is a valid measure of iliopsoas, sartorius, and rectus femoris muscle size in healthy people, as long as a strict measurement protocol is followed.
Keyword Iliopsoas
MRI
Rectus femoris
Reliability
Sartorius
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Sun, 26 Sep 2010, 00:03:21 EST