FIELD: medicine.
SUBSTANCE: invention relates to field of medicine, namely to oncology. Catheterisation of patient's venous system is carried out. Fibre-optic spectrometer sensor is moved via veins to corresponding organs to the level of segmental veins and absorption coefficient of sample β is determined in real time mode. β value higher or equal 900 cm-1 testifies to presence of malignant neoplasm or metastases in organ or its segment.
EFFECT: method makes it possible to determine metastatic disease at early stages, point to exact metastasis localisation.
2 ex
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