IN VIVO DRUG CONCENTRATION DISTRIBUTION MEASURING DEVICE, VARIABLE-WAVELENGTH FILTER USED FOR THE SAME, AND IN VIVO DRUG CONCENTRATION DISTRIBUTION MEASURING METHOD

摘要

An in vivo drug concentration distribution measuring device for measuring, when a drug having an imaging function is administered, in vivo concentration distribution of the drug is disclosed. The device includes: a light source which casts light to a living body as a measuring target; a variable-wavelength filter which, when the light is cast to the drug from outside of the living body, the light emitted from the drug to outside of the living body becomes incident on and transmits light of a predetermined wavelength range, of an entire wavelength range of the incident light, and which is capable of changing the predetermined wavelength range; a photodetector unit which detects intensity of light made incident through the variable-wavelength filter and acquires intensity distribution of light emitted from plural positions on the measuring target; and a drug concentration calculating unit which calculates a concentration of the drug in accordance with the intensity distribution of the light at the plural positions on the measuring target acquired by the photodetector unit.