Evaluation of human muscle hardness after dynamic exercise with ultrasound real-time tissue elastography: A feasibility study

Yanagisawa, Osamu; Niitsu, Mamoru; Kurihara, Toshiyuki; Fukubayashi, Toru

doi:10.1016/j.crad.2011.03.012

Cited by 113 publications

(97 citation statements)

References 17 publications

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“…1,2 When muscle fibres are damaged, muscles show shortening and hardening. [3][4][5][6] Exercise of muscles induces fluid accumulation and an increase in the intramuscular pressure, and, consequently, changes muscle hardness and thickness. 3,4 For these reasons, the hardness of skeletal muscles is widely used as an index in the fields of orthopaedics and sports medicine.…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5][6] Exercise of muscles induces fluid accumulation and an increase in the intramuscular pressure, and, consequently, changes muscle hardness and thickness. 3,4 For these reasons, the hardness of skeletal muscles is widely used as an index in the fields of orthopaedics and sports medicine. [7][8][9][10] Similarly, the hardness of the masticatory muscles can aid in the diagnosis and treatment of myalgia in patients with temporomandibular disorders.…”

Section: Introductionmentioning

confidence: 99%

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Shear-wave sonoelastography for assessing masseter muscle hardness in comparison with strain sonoelastography: study with phantoms and healthy volunteers

Ariji¹,

Nakayama²,

Nishiyama³

et al. 2016

Dentomaxillofacial Radiology

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Objectives: Shear-wave sonoelastography is expected to facilitate low operator dependency, high reproducibility and quantitative evaluation, whereas there are few reports on available normative values of in vivo tissue in head and neck fields. The purpose of this study was to examine the reliabilities on measuring hardness using shear-wave sonoelastography and to clarify normal values of masseter muscle hardness in healthy volunteers. Methods: Phantoms with known hardness ranging from 20 to 140 kPa were scanned with shear-wave sonoelastography, and inter-and intraoperator reliabilities were examined compared with strain sonoelastography. The relationships between the actual and measured hardness were analyzed. The masseter muscle hardness in 30 healthy volunteers was measured using shear-wave sonoelastography. Results: The inter-and intraoperator intraclass correlation coefficients were almost perfect. Strong correlations were seen between the actual and measured hardness. The mean hardness of the masseter muscles in healthy volunteers was 42.82 ± 5.56 kPa at rest and 53.36 ± 8.46 kPa during jaw clenching. Conclusions: The hardness measured with shear-wave sonoelastography showed high-level reliability. Shear-wave sonoelastography may be suitable for evaluation of the masseter muscles.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Shear-wave sonoelastography for assessing masseter muscle hardness in comparison with strain sonoelastography: study with phantoms and healthy volunteers

Ariji¹,

Nakayama²,

Nishiyama³

et al. 2016

Dentomaxillofacial Radiology

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show abstract

“…The technique has been used to assess the hardness of various normal and abnormal tissues, [1][2][3][4][5][6] and to differentiate malignant from benign lesions in the breast, prostate, thyroid, lymph nodes and salivary glands. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Ultrasound elastography uses either strain or shear wave velocity.…”

Section: Introductionmentioning

confidence: 99%

“…1,[6][7][8][9][10]12,[15][16][17][19][20][21][22][23][24] Semi-quantitative analysis, in which strain is represented in numerical values, has recently been used as a more objective method. [1][2][3][4][5][9][10][11]13,17 However, whether these values can be effectively used for clinical assessment remains unclear because the image quality of strain elastography, which is performed manually, depends strongly on the imaging procedure. 14,18 To the best of our knowledge, the effects of compression force on hardness values have not yet been reported.…”

Section: Introductionmentioning

confidence: 99%

Effects of compression force on elasticity index and elasticity ratio in ultrasound elastography

Imaizumi¹,

Sasaki²,

Sakamoto³

et al. 2014

Dentomaxillofacial Radiology

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Objectives: The purpose of this study was to investigate the relationship between compression force and hardness values in ultrasound elastography. Methods: Ultrasound elastography was performed using an elastography phantom, comprising inclusions with different elasticities and echogenicities. The compression force was set to approximately 100 gw (light force) and approximately 500 gw (heavy force). The elasticity index (EI) of the inclusion was measured. The EI was a relative hardness value of a structure within an elastographic image. Similarly, the EI of the background was measured as a reference. The elasticity ratio (ER) was calculated as the EI of the inclusion divided by the EI of the reference. Results: The hardness of the phantom could be discerned with both the EI and ER, regardless of the compression force. The EI and ER with heavy force tended to be higher than those with light force, but the difference was not significant. A strong correlation was observed between the EI and ER of soft structures, whereas the correlation between the EI and ER of hard structures was weak, and the ER values varied widely.

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“…Hardness sensing especially for soft material is one of important problem in many fields such as foods industry and material science, including robotics [1][2][3][4][5][6][7][8][9][10][11].For application, the hardness sensing used many fields such as breast cancer diagnosis [6,12], tension-type headache from the musculoskeletal complaints [13,14], trapezius muscle hardness changes from the reason of visual display terminal height [15], muscle hardness measurements using ultrasound [16,17], hardness sensing using optical (IR frequency) techniques [18].As the force sensor, gauge sensor has been used for the hardness measurement. Since gauge sensor measures a distortion of metal, the accuracy of weak force range (0.1 to few N) inevitably drops, and it is considered difficult to measure the hardness of soft material [3,[19][20][21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Hardness Measurement affected by a Cushion between Probe and PTF Pressure sensor

Toda¹,

Takata²,

Okumura³

2017

IJOER

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Evaluation of human muscle hardness after dynamic exercise with ultrasound real-time tissue elastography: A feasibility study

Cited by 113 publications

References 17 publications

Shear-wave sonoelastography for assessing masseter muscle hardness in comparison with strain sonoelastography: study with phantoms and healthy volunteers

Shear-wave sonoelastography for assessing masseter muscle hardness in comparison with strain sonoelastography: study with phantoms and healthy volunteers

Effects of compression force on elasticity index and elasticity ratio in ultrasound elastography

Experimental Study of Hardness Measurement affected by a Cushion between Probe and PTF Pressure sensor

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