| 摘要 |
In order to automatically determine a refractive index of light of a flush solution that is used during a pull-back scan and enable reconstruction of a vessel cross-sectional image with an appropriate scale, this image diagnostic device calculates, in advance, the reflected light intensity in a medium with a known refractive index, detects, from coherent light data obtained during the pull-back scan, the intensity of a reflected light at the boundary surface between a catheter sheath part and the flush solution, and, from this intensity of the reflected light, the intensity of an incident light calculated from the stored reflected light, and the known refractive index of the catheter sheath part, calculates the refractive index of the flush solution. |
