MALIGNANT MELANOMA DIAGNOSTIC APPARATUS

To provide a malignant melanoma diagnostic apparatus which can reduce the burden on a patient with a laser Doppler blood flow measurement method using a simple optical system and highly accurately perform diagnosis of a malignant melanoma in a non-invasive manner.SOLUTION: The malignant melanoma diagnostic apparatus comprises a laser Doppler blood flow measurement device 10 including: a condensing optical system 20 which makes laser beams of branched sheet light intersect with each other at a prescribed position in a living body; a light reception member 24 which is arranged at an image formation position of scattered light in a portion where the sheet light intersects with each other; and a photoelectric conversion element 32 which converts the scattered light incident on the light reception member 24 into an electric signal. The laser Doppler blood flow measurement device calculates a blood flow speed with the blood flow in a blood vessel at a prescribed position in a biological tissue. The malignant melanoma diagnostic apparatus comprises deep learning means 40 which can determine a malignant melanoma by performing deep learning of a known photographed image a and a blood flow image b in advance. The malignant melanoma diagnostic apparatus acquires the photographed image a obtained by photographing the skin suspected to have a malignant melanoma and the blood flow image b measured by the laser Doppler blood flow measurement device 10 and determines whether or not the skin has the malignant melanoma on the basis of a learning result of the deep learning means 40.SELECTED DRAWING: Figure 1 【課題】簡単な光学系を用いたレーザドップラー血流測定方法により、患者の負担を軽減し、非侵襲で高精度に悪性黒色腫の診断を行うことができる悪性黒色腫診断装置を提供する。【解決手段】分岐したシート光のレーザ光を生体内の所定位置で互いに交差させる集光光学系２０と、シート光が交差した部位での散乱光の結像位置に配置された受光部材２４と、受光部材２４に入射した散乱光を電気信号に変換する光電変換素子３２を備え、生体組織内の所定位置の血管の血流により血流速を演算するレーザドップラー血流測定装置１０を有する。既知の撮影画像ａと血流画像ｂとを予め深層学習して、悪性黒色腫であるか否かを峻別可能にした深層学習手段４０を備える。悪性黒色腫の疑いのある皮膚を撮影した撮影画像ａと、レーザドップラー血流測定装置１０により測定した血流画像ｂとを取得して、深層学習手段４０の学習結果を基に、悪性黒色腫であるか否かを判断する。【選択図】図１