title: Elastic modulus of muscle and tendon with shear wave ultrasound elastography: variations with different technical settings.
abstract: Standardization on Shear wave ultrasound elastography (SWUE) technical settings will not only ensure that the results are accurate, but also detect any differences over time that may be attributed to true physiological changes. The present study evaluated the variations of elastic modulus of muscle and tendon using SWUE when different technical aspects were altered. The results of this study indicated that variations of elastic modulus of muscle and tendon were found when different transducer's pressure and region of interest (ROI)'s size were applied. No significant differences in elastic modulus of the rectus femoris muscle and patellar tendon were found with different acquisition times of the SWUE sonogram. The SWUE on the muscle and tendon should be performed with the lightest transducer's pressure, a shorter acquisition time for the SWUE sonogram, while measuring the mean elastic modulus regardless the ROI's size.
authors.affiliation: Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China. briankot@yahoo.co.uk
authors.forename: Brian Chin Wing
authors.initials: BC
authors.lastname: Kot
authors.forename: Zhi Jie
authors.initials: ZJ
authors.lastname: Zhang
authors.forename: Arthur Wai Chun
authors.initials: AW
authors.lastname: Lee
authors.forename: Vivian Yee Fong
authors.initials: VY
authors.lastname: Leung
authors.forename: Siu Ngor
authors.initials: SN
authors.lastname: Fu
mesh_terms: D000328:Adult; D055119:Elastic Modulus / Q000502:physiology*; D054459:Elasticity Imaging Techniques / Q000295:instrumentation* / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D010329:Patella / Q000000981:diagnostic imaging / Q000502:physiology; D052097:Quadriceps Muscle / Q000000981:diagnostic imaging* / Q000502:physiology*; D013710:Tendons / Q000000981:diagnostic imaging* / Q000502:physiology*; D014160:Transducers, Pressure; D055815:Young Adult