Quantifying differences in the material properties of the fiber regions of the pectoralis major using ultrasound shear wave elastography

Leonardis, Joshua M.; Desmet, David M.; Lipps, David B.

doi:10.1016/j.jbiomech.2017.07.031

Cited by 27 publications

(19 citation statements)

References 33 publications

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“…The shear wave speed may be dependent on the local compositional, structural and mechanical properties of the tissue. Therefore, we selected the central part of the muscle belly as in previous studies (Eby et al 2015;Hirata et al 2016;Kentaro et al 2012;Leonardis et al 2017;Miyamoto et al 2015;Umegaki et al 2015) to report the muscle data. Finally, to be clinically useful, the SWE-based method needs to be examined in human specimens and patients.…”

Section: Discussionmentioning

confidence: 99%

Non-invasive Quantitative Assessment of Muscle Force Based on Ultrasonic Shear Wave Elastography

Liu

Qian

Wang

et al. 2019

Ultrasound in Medicine & Biology

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The objective of this study was to investigate the feasibility of using shear wave elastography (SWE) to indirectly measure passive muscle force and to examine the effects of muscle mass and scan angle. We measured the Young's moduli of 24 specimens from six muscles of four swine at different passive muscle loads under different scan angles (0˚, 30˚, 60˚and 90˚) using SWE. Highly linear relationships between Young's modulus E and passive muscle force F were found for all 24 muscle specimens at 0 o scan angle with coefficients of determination R 2 ranging from 0.984 to 0.999. The results indicate that the muscle mass has no significant effect on the muscle EÀF relationship, whereas EÀF linearity decreases disproportionately with increased scan angle. These findings suggest that SWE, when carefully applied, can provide a highly reliable tool to measure muscle Young's modulus, and could be used to assess the muscle force quantitatively.

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Section: Discussionmentioning

confidence: 99%

Non-invasive Quantitative Assessment of Muscle Force Based on Ultrasonic Shear Wave Elastography

Liu

Qian

Wang

et al. 2019

Ultrasound in Medicine & Biology

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“…The material properties of the sternocostal and clavicular heads of the PM were acquired with ultrasound SWE using established protocols 21 . A Supersonic Imagine Aixplorer ultrasound machine with an SL14–5 transducer was placed on the skin above the muscle.…”

Section: Methodsmentioning

confidence: 99%

“…A faster shear wave velocity is associated with greater shear elastic modulus, and ultimately a stiffer soft tissue 41 . An established data processing algorithm in MATLAB was used to calculate the mean shear wave velocity and shear elastic modulus from the color map 21 . Images were collected from each muscle region of the PM while participants were relaxed or actively producing muscle force in horizontal flexion or vertical adduction scaled to 10% of their maximal strength.…”

Section: Methodsmentioning

confidence: 99%

Mechanical properties of the shoulder and pectoralis major in breast cancer patients undergoing breast-conserving surgery with axillary surgery and radiotherapy

Lipps

Leonardis

Dess

et al. 2019

Sci Rep

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Breast-conserving surgery (BCS) and radiotherapy reduce breast cancer recurrence but can cause functional deficits in breast cancer survivors. A cross-sectional study quantified the long-term pathophysiological impact of these treatments on biomechanical measures of shoulder stiffness and ultrasound shear wave elastography measures of the shear elastic modulus of the pectoralis major (PM). Nine node-positive patients treated with radiotherapy to the breast and regional nodes after BCS and axillary lymph node dissection (Group 1) were compared to nine node-negative patients treated with radiotherapy to the breast alone after BCS and sentinel node biopsy (Group 2) and nine healthy age-matched controls. The mean follow-up for Group 1 and Group 2 patients was 988 days and 754 days, respectively. Shoulder stiffness did not differ between the treatment groups and healthy controls (p = 0.23). The PM shear elastic modulus differed between groups (p = 0.002), with Group 1 patients exhibiting a stiffer PM than Group 2 patients (p < 0.001) and healthy controls (p = 0.027). The mean prescribed radiotherapy dose to the PM was significantly correlated with passive shear elastic modulus (p = 0.018). Breast cancer patients undergoing more extensive axillary surgery and nodal radiotherapy did not experience long-term functional deficits to shoulder integrity but did experience long-term mechanical changes of the PM.

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“…[5][6][7] Recently, some studies showed that SWE can be used in musculoskeletal evaluation, especially for characterization and differentiation between normal and damaged tendons. [8][9][10] SWE appears to be a utility tool to improve the diagnosis of tendon injury, and it can also be used as an evaluation index for therapeutic effects. But there is no previous study evaluating FPL after ORIF.…”

Section: Introductionmentioning

confidence: 99%

Shear Wave Elastography (SWE) Evaluation of Asymptomatic Flexor Pollicis Longus Tendon Condition After Volar Plate Fixation for Distal Radius Fracture

Bai¹,

Liu²,

Wang³

2021

IJGM

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This study aimed to evaluate asymptomatic flexor pollicis longus (FPL) tendon condition after volar plate fixation for distal radius fracture using shear wave elastography (SWE). Methods: We evaluated 36 distal radius fractures with shear wave elastography to evaluate the FPL tendon after volar plate fixation. Ultrasonography was used to measure the FPL distance to the volar plate in the involved wrists, and the thickness of the FPL tendon in the involved wrists was measured on SWE sonograms taken 12 months postoperatively. Measurements of the involved wrists were compared with those of the intact wrists. The radiographic parameters and Soong grade were collected to analyze the correlation between these indicators and the value of the Young's modulus and asymptomatic tendon injury. Results: The mean values of the Young's modulus for involved wrist were lower than for intact wrist tendons. The values of the Young's modulus were correlated with the FPL distance, radial inclination, and Soong grade. FPL tendons of involved wrists exhibited in the majority a yellow (intermediate) SWE signal, compared to intact wrist tendons, which exhibited a red (hard) signal in the vast majority, and there were significant differences between the involved and intact wrist. Conclusion: FPL tendon may develop asymptomatically changes after volar locking plate fixation of distal radius fractures, which can be detected by SWE effectively. FPL distance, radial accretion, and Soong grade may be the main causes of asymptomatic FPL tendon erosion.

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Quantifying differences in the material properties of the fiber regions of the pectoralis major using ultrasound shear wave elastography

Cited by 27 publications

References 33 publications

Non-invasive Quantitative Assessment of Muscle Force Based on Ultrasonic Shear Wave Elastography

Non-invasive Quantitative Assessment of Muscle Force Based on Ultrasonic Shear Wave Elastography

Mechanical properties of the shoulder and pectoralis major in breast cancer patients undergoing breast-conserving surgery with axillary surgery and radiotherapy

Shear Wave Elastography (SWE) Evaluation of Asymptomatic Flexor Pollicis Longus Tendon Condition After Volar Plate Fixation for Distal Radius Fracture

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