Diagnostic significance of dynamic contrast enhanced magnetic resonance imaging in patients with brain tumours
84 patients with different brain tumours were investigated. The conventional and dynamic contrast enhanced magnetic resonance imaging was performed in all the patients. Malignant tumours were characterized by fast increase of signal intensity, achievement of peak of contrast enhancement in 12 minutes with a subsequent tendency to eliminating contrast agent after 3-5 minutes, without a plateau phase. Meningiomas differed by a pronounced plateau phase. Benign tumours were mainly characterized by gradual accumulation of the contrast agent. Assessment of dynamics of accumulation and elimination of contrast substance by brain tumours at dynamic contrast enhanced MRI provides insight into tumour histology.