INTRODUCTION: Nerve and muscle ultrasound has been studied in several conditions, but validity and reliability have not been assessed systematically. METHODS: Nerve cross-sectional area and muscle thickness were measured ultrasonographically at several sites in 4 cadavers, which were then dissected, and actual measurements were obtained. To assess intrarater and interrater reliability, between 3 and 5 ultrasonographers, with varying experience levels, made repeated measurements on healthy volunteers. RESULTS: Correlation coefficients for nerve and muscle validity were >0.968 (P < 0.001), and for intrarater reliability were >0.901 (P < 0.001) for still and real-time images. Correlation coefficients for interrater reliability were more varied, but for still images they were all significant at the P < 0.001 (0.542-0.998) level, and for real-time images they were significant at the P < 0.05 level for half the sites (0.243-0.981). CONCLUSION: Overall, nerve and muscle ultrasound is a valid and reliable diagnostic imaging technique.
INTRODUCTION: Nerve and muscle ultrasound has been studied in several conditions, but validity and reliability have not been assessed systematically. METHODS: Nerve cross-sectional area and muscle thickness were measured ultrasonographically at several sites in 4 cadavers, which were then dissected, and actual measurements were obtained. To assess intrarater and interrater reliability, between 3 and 5 ultrasonographers, with varying experience levels, made repeated measurements on healthy volunteers. RESULTS: Correlation coefficients for nerve and muscle validity were >0.968 (P < 0.001), and for intrarater reliability were >0.901 (P < 0.001) for still and real-time images. Correlation coefficients for interrater reliability were more varied, but for still images they were all significant at the P < 0.001 (0.542-0.998) level, and for real-time images they were significant at the P < 0.05 level for half the sites (0.243-0.981). CONCLUSION: Overall, nerve and muscle ultrasound is a valid and reliable diagnostic imaging technique.
Authors: Selina M Parry; Catherine L Granger; Sue Berney; Jennifer Jones; Lisa Beach; Doa El-Ansary; René Koopman; Linda Denehy Journal: Intensive Care Med Date: 2015-02-05 Impact factor: 17.440
Authors: Stephanie A Sontag; Michael A Trevino; Trent J Herda; Adam J Sterczala; Jonathan D Miller; Mandy E Parra; Hannah L Dimmick; Jake Deckert Journal: Eur J Appl Physiol Date: 2021-02-18 Impact factor: 3.078
Authors: Michael S Cartwright; Leah P Griffin; Hugh Dowlen; Jessica M Bargoil; James B Caress; Zhongyu J Li; Anthony J Defranzo; Ethan R Wiesler; Christopher J Tuohy; Nikhil Balakrishnan; Joseph A Molnar; Vanessa Baute; L Andrew Koman; Gary G Poehling; Francis O Walker Journal: Muscle Nerve Date: 2015-09-10 Impact factor: 3.217
Authors: Justin W Andrushko; Joel L Lanovaz; Kelsey M Björkman; Saija A Kontulainen; Jonathan P Farthing Journal: J Appl Physiol (1985) Date: 2017-12-14