METHOD FOR ASSESSING THE DEGREE OF MALIGNANCY OF BRAIN TUMORS Russian patent published in 2022 - IPC A61B6/03 G01T1/164 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to radiology, and can be used to assess the degree of malignancy of brain tumors. The radiopharmaceutical drug (RPD) "^99mTc-1-thio-D-glucose" is administered at a dose of 500 MBq. 40 minutes after drug administration, single photon emission tomography (SPECT) is performed. When visualizing foci of metabolic hyperfixation of the drug in the projection of the brain, the tumor/background index is calculated. If the tumor/background value is <4.425, a brain tumor with Grade II malignancy is diagnosed, with a tumor/background value of 4.425-8.205, a brain tumor with Grade III malignancy, and with a tumor/background value >8.205, a brain tumor with Grade malignancy IV.

EFFECT: method provides increased accessibility, efficiency, accuracy and informative value of assessing the degree of malignancy of brain tumors due to the use of a quantitative indicator tumor/background during SPECT with RFLP "^99mTc-1-thio-D-glucose".

1 cl, 1 tbl, 6 dwg, 3 ex