腹部脂肪量測定装置の開発 — 内臓脂肪計と電気インピーダンストモグラフィによる腹部脂肪画像化装置

抄録

The specific health check-up has been commenced since 2008, and a measurement of waist circumference became a required item in Japan. However, the waist circumference is not adequate for identifying the accumulation of visceral fat. Therefore, the more selectively measurable radiation-free device was expected to be developed. Thus, we developed a 4-electrodes belt-type visceral fat measuring device, and marketed in 2014 as a medical device. The visceral fat area measured by the device indicated strong correlation (R=0.85 - 0.93) with that estimated by X-ray CT scan image. However, we are developing a visceral fat meter using not only bio-impedance but also abdominal outline shape obtained by shape sensors attached on the belt to improve the measuring accuracy. On the other side, we are attempting to develop a 64-electrodes abdominal fat imaging device using electrical impedance tomography expecting the abdominal image become a strong motivator for behavior modification.