Intrarater Reliability of Shear Wave Elastography for the Quantification of Lateral Abdominal Muscle Elasticity in Idiopathic Scoliosis Patients

Linek, Paweł; Wolny, Tomasz; Sikora, Damian; Klepek, Anna

doi:10.1016/j.jmpt.2018.11.034

Cited by 8 publications

(10 citation statements)

References 23 publications

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“…A recent systematic review showed that USI has good interand intra-rater reliability, and the reported standard error of measurement and minimal detectable change for USI were in an acceptable range [20]. To date, the reliability of LAMs shear modulus measurements by SWE were conducted in three studies [16,21,22]. The reliability results on adults have shown fair to excellent intra-and inter-rater reliability [21].…”

Section: Introductionmentioning

confidence: 99%

Lateral Abdominal Muscles Shear Modulus and Thickness Measurements under Controlled Ultrasound Probe Compression by External Force Sensor: A Comparison and Reliability Study

Mikołajowski

Pałac

Wolny

et al. 2021

Sensors

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The aim of this study was to perform a reliability and agreement analysis and to compare lateral abdominal muscles (LAMs) thickness and elasticity results obtained by an experienced operator, by a non-experienced operator, and in an ultrasound imaging probe compression controlled (PCC) condition with minimal force necessary to obtain a proper ultrasound image. The sample consisted of 39 adolescents. An Aixplorer ultrasound scanner was used to evaluate the LAM. The probe in PCC condition was positioned in a prepared probe holder coupled with a pressure sensor. The LAM thickness and elasticity measurements were significantly (p < 0.05) different in the ultrasound PCC condition, compared to results obtained by both examiners. The abdominal oblique external and internal muscle thickness measurements were underestimated and all LAM shear moduli were overestimated during measurements without controlling the probe compression by an external sensor. The intra-class correlation coefficient was excellent in all conditions, but the smallest detectable differences were approximately 43–60% lower during the measurements collected in PCC condition. Differences in LAM measurements between PCC and ‘on-hand’ conditions may be clinically irrelevant when the force applied by the probe is consciously controlled by the examiner. However, during ultrasound measurements of the LAM morphology, the potential under/over estimation should always be considered when measurements are performed without controlling probe compression by an external sensor.

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Section: Introductionmentioning

confidence: 99%

Lateral Abdominal Muscles Shear Modulus and Thickness Measurements under Controlled Ultrasound Probe Compression by External Force Sensor: A Comparison and Reliability Study

Mikołajowski

Pałac

Wolny

et al. 2021

Sensors

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“…The RS85 Prestige ultrasound unit, coupled with a 2–10 MHz linear probe LA2‐14A (Samsung Medicine), was used to assess the stiffness of the TrA. The probe was positioned transversely along the direction of the TrA muscle fibres (Linek et al, 2020). The probe was placed on the skin perpendicularly to the measurement site, with the participants in a supine position with knees bent at 90°, after which they were asked to relax their abdominal muscles for an SWE measurement (Linek et al, 2020; MacDonald et al, 2016).…”

Section: Methodsmentioning

confidence: 99%

“…The probe was positioned transversely along the direction of the TrA muscle fibres (Linek et al, 2020). The probe was placed on the skin perpendicularly to the measurement site, with the participants in a supine position with knees bent at 90°, after which they were asked to relax their abdominal muscles for an SWE measurement (Linek et al, 2020; MacDonald et al, 2016). Abdominal muscle contraction was performed by each participant, according to the bracing manoeuvre instructions provided before the starting the experiment (MacDonald et al, 2016).…”

Section: Methodsmentioning

confidence: 99%

Association between abdominal muscle stiffness, diaphragm thickness and peak expiratory flow in younger versus older adults

Lim

Lee

2023

Clin Physio Funct Imaging

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The present study aimed to evaluate forced expiration based on transverse abdominis (TrA) stiffness by identifying the relationship between TrA stiffness and peak expiratory flow (PEF) in both younger and older adults. We also assessed the relationship between diaphragm thickness and PEF. A total of 31 younger (21.24 ± 2.73 years) and 34 older (71.35 ± 5.26 years) adults were included in the present study. TrA muscle stiffness was measured at rest and during abdominal bracing using shear wave elastography. Diaphragm thickness was measured during deep inspiration and expiration using B‐mode ultrasound, and respiratory function was assessed by measuring PEF using a spirometer. We found that TrA stiffness during bracing was significantly lower in older than younger adults (p < 0.05). Similarly, the difference in absolute stiffness of the TrA when bracing versus at rest was significantly lower in older than younger adults (p < 0.05). Additionally, TrA stiffness during bracing was positively associated with PEF in the younger group (r = 0.483), while a very weak correlation was found in the older group (r = 0.172). Similarly, PEF was moderately correlated with diaphragm thickness during expiration as well as during changes between inspiration and expiration in the younger group (r = 0.405 and r = 0.403); however, no significant correlation was found in the older group. These findings of the present study indicate that the variations in PEF between younger and older adults may be due to age‐associated changes in the musculoskeletal structure and muscle fibre type.

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“…Additionally, SWE allows measuring muscle thickness and elasticity simultaneously. Recently, Linek et al ( 2019b ; 2020b ) confirmed the reliable estimation of muscle thickness and elasticity in an adolescent population using ultrasound (US) measurements in the SWE mode. Also, those authors developed a reliable method for assessing LAM during isometric contraction whereby participants volition was maximally limited ( Linek et al, 2019b ).…”

Section: Introductionmentioning

confidence: 97%

Ultrasound Shear Modulus and Thickness of Lateral Abdominal Muscles in Different Contractile States in Relation to Self‐ Reported Hip/Groin Problems in Youth Soccer Players

Linek

Booysen

Stokes

2022

Journal of Human Kinetics

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To date, no studies have assessed lateral abdominal muscles’ (LAM) elasticity and thickness in relation to hip and groin symptoms in any population. The objectives were to a) assess the relationship between LAM ultrasound measurements (elasticity and thickness) and self-reported subscales of the Copenhagen Hip and Groin Outcome Score (HAGOS) and b) compare LAM elasticity and thickness between asymptomatic and symptomatic sides. Shear modulus and thickness of the oblique external (OE), internal (OI) and transversus abdominis (TrA) muscles in 25 young soccer players were assessed at rest and during isometric contraction using ultrasound shear wave elastography. HAGOS subscales were used to assess self-reported hip/groin problems. There was a significant (p < 0.05) moderate correlation between allometric-scaled OI resting thickness (mean of right and left) and the Activities of Daily Living (r = 0.40), Sport (r = 0.57) and Quality of Life (QOL) (r = 0.41) HAGOS subscales. Also, a moderate significant correlation was found between allometric-scaled TrA resting thickness and the QOL subscale (r = 0.47). Moderate correlations were found between resting OI shear modulus and the QOL (r = 0.44), between right TrA shear modulus during contraction and Symptoms (r = 0.57), and between the left TrA shear modulus during contraction and Physical Activity (r = 0.41) subscales. No differences were found between the symptomatic and asymptomatic side in thickness and elasticity measurements among soccer players with unilateral symptoms (p > 0.05). The relationships found between LAM and hip/groin problems in youth male soccer players indicate that muscles are thinner and more elastic (less stiff) in more symptomatic athletes.

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Intrarater Reliability of Shear Wave Elastography for the Quantification of Lateral Abdominal Muscle Elasticity in Idiopathic Scoliosis Patients

Cited by 8 publications

References 23 publications

Lateral Abdominal Muscles Shear Modulus and Thickness Measurements under Controlled Ultrasound Probe Compression by External Force Sensor: A Comparison and Reliability Study

Lateral Abdominal Muscles Shear Modulus and Thickness Measurements under Controlled Ultrasound Probe Compression by External Force Sensor: A Comparison and Reliability Study

Association between abdominal muscle stiffness, diaphragm thickness and peak expiratory flow in younger versus older adults

Ultrasound Shear Modulus and Thickness of Lateral Abdominal Muscles in Different Contractile States in Relation to Self‐ Reported Hip/Groin Problems in Youth Soccer Players

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