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Abstract
The pixel values in fat/water suppression magnetic resonance (MR) images were measured for the thigh muscles of 18 healthy volunteers to investigate age-related changes in muscle water and fat content. Prior to the human studies the reproducibility of the data was confirmed using phantoms. The standard deviations (SDs) of the pixel values for one of the phantoms examined five times were found to be within a relatively narrow range. Both the pixel values in the fat suppression images (PV1) and the pixel values in the water suppression images (PV2) of all muscles tended to be higher in the oldest group. The results indicate that the water and fat content of skeletal muscles is higher in aged persons. Moreover, the PV1 in the non-dominant limbs was found to be increased in the extensor muscles of the knee joints, while the PV2 in the non-dominant limbs did not show a significant difference, except for the rectus femoris.
Additional information
Notes on contributors
A. Tsubahara
It is with great sadness that we have to inform the readership of the Journal that shortly after completing the final editorial work on this Special Issue, Professor Kalman Jacob Mann was seriously injured in a car accident and subsequently died.
Professor Mann was responsible for establishing the two Hadassah Hospitals and Community Health Centres in Jerusalem and for the past 20 years headed the Presidium of Yad Sarah, Israel's largest community based, volunteer operated organization which provides a spectrum of free or nominal cost home care services nation-wide.
We offer our condolences to his family and friends, and trust that this Special Issue stands as a testament to his work in the field.