| 摘要 |
<p>PURPOSE:To relieve the pain of the examinee of an endoscope, by taking the photographs of both of an object and a standard white body outside the body at every irradiation lights having plural kinds of narrow-band wavelengths to obtain image data and using said image data to calculate a blood flow amount and an oxygen saturation degree. CONSTITUTION:When a blood flow amount image and oxygen saturation degree image collecting button 12 is pushed, a stepping motor 25 rotates an interference filter disc 24 under the control of a controller 36 and filters of wavelengths lambda4, lambda1, lambda2, lambda3 are successively selected. The image data Elambda4, Elambda1, Elambda2, Elambda3 of the filters taken in synchronous relation to the selection of the filters under the control of a controller 36 are respectively stored in image memories 334, 331, 332, 333. The operation calculating a blood flow amount and an oxygen saturation degree from the image data Elambdai obtained by taking the photograph of an object such as the stomach at every irradiation light having each narrow-band wavelength lambdai and the image data ESlambdai obtained by taking the photograph of standard white body outside the body, for example, the operation represented by formula is executed to obtain image data with respect to each pixel and the blood flow amount and oxygen saturation degree imaging of the two-dimensional mucous membrane of the stomack are obtained at a high speed.</p> |
