The impact of body position and exercise on the measurement of liver Young’s modulus by real-time shear wave elastography

Autor:	Hong-Yuan Xue, Li Li, Xia Jiang
Rok vydání:	2022
Předmět:	medicine.medical_specialty Supine position Posture Biomedical Engineering Biophysics Health Informatics Bioengineering Young's modulus Biomaterials symbols.namesake Liver stiffness Elastic Modulus Internal medicine Healthy volunteers medicine Humans Exercise Shear wave elastography business.industry Left lateral position Body position Liver Cardiology symbols Elasticity Imaging Techniques business Information Systems
Zdroj:	Technology and Health Care. 30:445-454
ISSN:	1878-7401 0928-7329
DOI:	10.3233/thc-213218
Popis:	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). 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74d7e8455b080b1d8d6268cc6ed5a7b6 https://doi.org/10.3233/thc-213218 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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