Interobserver variability and stiffness measurements of normal common extensor tendon in healthy volunteers using shear wave elastography

BACKGROUND: In the past ten years, liver biopsies have been used as a method to accurately diagnose the stage of fibrosis. OBJECTIVE: This study aimed to evaluate whether body position and exercise affect the measurement of liver Young’s modulus of healthy volunteers by real-time shear wave elastography (RT-SWE). Methods: RT-SWE was used to measure liver Young’s modulus in the supine and left lateral positions of 70 healthy volunteers at rest and measure the liver Young’s modulus in the lying position before exercise, and at zero, five, and ten minutes of rest after exercise. RESULTS: The liver Young’s modulus in the left lateral position was significantly higher than in the supine position (P< 0.05), and the measured value in the supine position was more stable than the left lateral position. The liver Young’s modulus measured at zero minutes after exercise was significantly higher than that measured before exercise (P< 0.05). The liver Young’s modulus measured at five minutes after exercise was significantly higher than that measured at zero minutes after exercise (P<0.05) and was not statistically different from the measured value before exercise (P> 0.05). The liver Young’s modulus measured at ten minutes after exercise was significantly higher from that measured at zero minutes after exercise (P< 0.05) and was not statistically different from the measured value at five minutes after exercise (P> 0.05). CONCLUSION: Body position and exercise have a significant impact on the measurement of liver Young’s modulus. It is recommended that the examinees take a supine position during the measurement, and measurement should be conducted at least ten minutes after exercise.

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Evaluation of spleen stiffness in healthy volunteers using point shear wave elastography

Annals of Hepatology ◽

10.1016/j.aohep.2019.03.004 ◽

2019 ◽

Vol 18 (5) ◽

pp. 736-741 ◽

Cited By ~ 11

Author(s):

Mauro Giuffrè ◽

Daniele Macor ◽

Flora Masutti ◽

Cristiana Abazia ◽

Fabio Tinè ◽

...

Keyword(s):

Healthy Volunteers ◽

Shear Wave ◽

Shear Wave Elastography ◽

Spleen Stiffness

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Shear wave elastography of the spleen: evaluation of spleen stiffness in healthy volunteers

Abdominal Radiology ◽

10.1007/s00261-016-0834-4 ◽

2016 ◽

Vol 41 (11) ◽

pp. 2169-2174 ◽

Cited By ~ 14

Author(s):

Aleksander Pawluś ◽

Marcin S. Inglot ◽

Kinga Szymańska ◽

Krzysztof Kaczorowski ◽

Bartosz D. Markiewicz ◽

...

Keyword(s):

Healthy Volunteers ◽

Shear Wave ◽

Shear Wave Elastography ◽

Spleen Stiffness

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Evaluation of the optic nerve using strain and shear wave elastography in patients with multiple sclerosis and healthy subjects

Medical Ultrasonography ◽

10.11152/mu-939 ◽

2017 ◽

Vol 19 (1) ◽

pp. 39 ◽

Cited By ~ 11

Author(s):

Mikail İnal ◽

Sinan Tan ◽

Erhan M. Yumusak ◽

Mehmet Hamdi Şahan ◽

Murat Alpua ◽

...

Keyword(s):

Multiple Sclerosis ◽

Optic Nerve ◽

Healthy Volunteers ◽

Shear Wave ◽

Healthy Subjects ◽

Shear Wave Elastography ◽

Optic Nerves ◽

Type 3

Aims: Our aim was to evaluate the elasticity features of the optic nerve using strain (SE) and shear wave elastography (SWE) in multiple sclerosis (MS) patients in comparison with healthy subjects. Material and methods: One hundred and seven optic nerves from 54 MS patients and 118 optic nerves from 59 healthy subjects were examined prospectively by SE and SWE. Optic nerves were divided into three types in accordance to the elasticity designs, as follows: type 1 predominantly blue (hardest tissue); type 2 predominantly blue/green (hard tissue); and type 3 predominantly green (intermediate tissue). Quantitative measurements of optic nerve hardness with SWE were analyzed in kilopascals. Results: Elastographic images from healthy volunteers showed mostly type 3 optic nerves (61.9%); type 2 was also found (38.1%), but type 1 was not observed. Elastographic examination of MS patients showed mostly type 2 optic nerves (88%), while some type 1 (4.6%) and type 3 optic nerves (6.5%) were rarely observed. There was a statistically significant difference in terms of elasticity patterns between patients and healthy volunteers (p<0.001). Statistically significant differences were observed between patients and healthy volunteers in the analysis of SWE values (10.381±3.48 kPa and 33.87±11.64 p<0.001). The receiver operating characteristic curve analysis was perfect (0.993; 95% confidence interval [CI]=0.971–0.999), and a cut-off value of 18.3 kPa shear had very high sensitivity and specificity for the patient group. No significant differences were observed between patients with and without previous optic neuritis. Conclusion: SE and SWE examination findings concerning the optic nerve in MS patients demonstrated remarkable differences according to the healthy group.

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Assessment of common extensor tendon elasticity in patients with lateral epicondylitis using shear wave elastography

Quantitative Imaging in Medicine and Surgery ◽

10.21037/qims.2019.10.07 ◽

2020 ◽

Vol 10 (1) ◽

pp. 211-219

Author(s):

Bihui Zhu ◽

Yingqi You ◽

Xi Xiang ◽

Liyun Wang ◽

Li Qiu

Keyword(s):

Shear Wave ◽

Lateral Epicondylitis ◽

Extensor Tendon ◽

Shear Wave Elastography

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Shear-wave elastography of the ulnar collateral ligament of the elbow in healthy volunteers: a pilot study

Skeletal Radiology ◽

10.1007/s00256-019-3162-2 ◽

2019 ◽

Vol 48 (8) ◽

pp. 1241-1249

Author(s):

Nakul Gupta ◽

John S. Labis ◽

Joshua Harris ◽

Michael A. Trakhtenbroit ◽

Leif E. Peterson ◽

...

Keyword(s):

Pilot Study ◽

Healthy Volunteers ◽

Shear Wave ◽

Ulnar Collateral Ligament ◽

Shear Wave Elastography ◽

Collateral Ligament

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Potential of Using Shear Wave Elastography in the Clinical Evaluation and Monitoring of Changes in Masseter Muscle Stiffness

Pain Research and Management ◽

10.1155/2020/4184268 ◽

2020 ◽

Vol 2020 ◽

pp. 1-5

Author(s):

Cyprian Olchowy ◽

Mieszko Więckiewicz ◽

Luca Maria Sconfienza ◽

Mateusz Łasecki ◽

Piotr Seweryn ◽

...

Keyword(s):

Healthy Volunteers ◽

Shear Wave ◽

Masseter Muscle ◽

Severe Pain ◽

Shear Wave Elastography ◽

Muscle Stiffness ◽

Sensitive Tool ◽

Massage Treatment ◽

The Mean ◽

Evaluation And Monitoring

The study aimed to evaluate masseter muscle stiffness in adult healthy volunteers referred to a massage treatment and also to investigate whether shear-wave elastography can be used to monitor the effect of massage on the masseter muscle. The study included 21 healthy volunteers, who were subjected to a 30-minute massage of the masseter muscle. Muscle stiffness was measured by shear-wave elastography before and directly after the massage. Pain during the massage was assessed using the visual analogue scale (VAS). The data of 20 patients (one excluded due to severe pain) with a median age of 34.5 years were analysed. The stiffness values were 11.46 ± 1.55 kPa before and 8.97 ± 0.96 kPa after the massage ( p < 0.0001 ). The mean drop was 2.49 ± 1.09 kPa. The greatest decrease was observed in people with higher elasticity values before the massage (r = 0.79; p < 0.0001 ). The median intensity of pain was 7.2 (range: 6–9.5). We concluded that shear-wave elastography is a sensitive tool to monitor changes in the stiffness of the masseter muscle.

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