肝ヘモグロビン濃度分布の画像化

概要

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We attempted to image tissue hemoglobin distribution by analyzing images obtained with an electronic peritoneoscope, using two narrow-band of 569nm and 650nm interference filters. At 569nm, variations in oxygen saturation have no effect, and at 650nm, hemoglobin concentration has no influence. The images of hemoglobin distribution obtained with the present system offer many useful advantages which are not available with conventional endoscopy. These are: 1. The ability to produce two-dimensional hemoglobin distribution charts. 2. The average hemoglobin concentration (hemoglobin index, Hb-I) can be measured within any region of interest (ROI). 3. Measurement can be performed under physiological conditions because of non-contact method. 4. High reproducibility is assessed because of the abscence of inter or intraindividual errors. 5. Instantaneous and repetitious measurements are possible. Because of these advantages, this imaging method is considered the most excellent method of blood flow measure both in experimental and clinical research.
社団法人日本肝臓学会の論文