Measurement method and measurement device for brown adipose tissue

A measurement method for brown adipose tissue, comprising:

• a light input step of inputting near-infrared light from a light input unit into a measurement target portion;
• a light detection step of detecting light intensity of the near-infrared light having propagated through an interior of the measurement target portion by a light detection unit;
• a calculation step of measuring any one value of a scattering coefficient and a deoxygenated hemoglobin concentration of the measurement target portion, which are acquired by near-infrared spectroscopy based on the detection result by the light detection unit;
• a defining step in which an index value for a brown adipose tissue amount is defined as the any one value measured;
• and
• a determination step of comparing the index value with a threshold value to determine whether the brown adipose tissue amount is negative or positive.

A measurement apparatus for brown adipose tissue, comprising:

• a light input unit inputting near-infrared light into a measurement target portion;
• a light detection unit detecting light intensity of the near-infrared light having propagated through an interior of the measurement target portion;
• and
• a calculator configured to define an index value for a brown adipose tissue amount by any one value of an oxygenated hemoglobin concentration, a total hemoglobin concentration, and a first parameter of the measurement target portion, the first parameter increasing or decreasing depending upon the oxygenated hemoglobin concentration or the total hemoglobin concentration, which are acquired by near-infrared spectroscopy based on the detection result by the light detection unit, wherein the calculator is configured to compare the index value with a threshold value to determine whether the brown adipose tissue amount is negative or positive.

A measurement apparatus for brown adipose tissue, comprising:

• a light input unit inputting near-infrared light into a measurement target portion;
• a light detection unit detecting light intensity of the near-infrared light having propagated through an interior of the measurement target portion;
• and
• a calculator configured to define an index value for a brown adipose tissue amount by any one of a scattering coefficient and a deoxygenated hemoglobin concentration of the measurement target portion, which are acquired by near-infrared spectroscopy based on the detection result by the light detection unit, wherein the calculator is configured to compare the index value with a threshold value to determine whether the brown adipose tissue amount is negative or positive.