Ultrasonic assessment of tissue hydration status

On the behaviour of porcine skeletal muscle tissue under shock compression

“…The bulk sound speed values calculated for the two tissue types in this work maintain good correlation with ultrasonic wave velocities determined for skeletal muscle tissue elsewhere [16,17]. However, somewhat lower longitudinal, shear, and bulk sound wave speeds are noticeable for the middle-white tissue, as opposed to the commercial tissue.…”

Validity of an acoustic method to assess whole-body hydration status

“…Furthermore, this investigation sought to expand upon the findings of an earlier investigation by Utter et al (2010) that examined male wrestlers. As identified by Sarvazyan et al (2005), tissue temperature, tissue composition (intramuscular fat content), internal changes to muscle structure following exercise (muscle damage), individual anatomical structure of musculature, changes in intramuscular blood flow, and adequate probe contact are sources of potential error when using ultra sound velocity as a measure of whole body hydration status. These areas of potential error provide the basis of discussion along with exploration of sex based differences, blood markers, and urinary markers.…”

“…Sarvazyan et al (2005) suggested that the contribution to error of measurement of muscle macro structure was equivalent to a decrease in ultrasound velocity of 0.4 cm/s to 4 m/s as determined by measuring ultrasound velocity in ex vivo muscle tissue before and after homogenization. This Means that when the macro structure of the muscle fiber is compromised (such as exercised induced damage) decreases in ultrasound velocity can occur.…”

Acoustical method of whole-body hydration status monitoring

“…The proposed method of ultrasonic assessment of body hydration status is based on the experimental fact that ultrasound velocity through soft tissue is a linear function of the tissue water content [1–4]. Because muscle provides the largest body reservoir for water, the assessment of water imbalance may be conducted by measuring ultrasound velocity in muscle.…”