UTILITY OF MRI IN DIAGNOSIS OF OF POSTERIOR REVERSIBLE ENCEPHALOPATHY SYNDROME (PRES) IN POST PARTUM FEMALES

Dr Anshul Shah; Dr Asutosh Dave; Dr Nikunj Desai; Dr Nishant Patel

Volume : IX, Issue : VI, June - 2019

UTILITY OF MRI IN DIAGNOSIS OF OF POSTERIOR REVERSIBLE ENCEPHALOPATHY SYNDROME (PRES) IN POST PARTUM FEMALES

Dr Anshul Shah, Dr Asutosh Dave, Dr Nikunj Desai, Dr Nishant Patel

Abstract :

Purpose: Our purpose is to characterize MRI, and diffusion–weighted imaging (DWI) findings in pregnant patients who were identified clinically to have PRES. We study the conversion of reversible vasogenic edema to irreversible cytotoxic edema and predict the progression to infarction. Patients and methods: 44 post partum females, aged between 20 and 46 years and with neurological manifestations had undergone conventional MRI, diffusion weighted image study, and ADC map. Results: Lesions were mainly affecting the parieto–occipital regions, symmetrical or slightly asymmetrical distribution of the lesions in both cereal hemispheres was found in most cases. The MRI findings in all the twenty two patients were: abnormal low SI in T1 WI, abnormal high SI on T2 and FLAIR WI. In DWI, hyperintensity with hyperintensity in ADC map was seen in 15 patients, hyperintensity with hypointensity in ADC map in 4 patients, normotensive in DWI with hyperintensity in ADC map in 3 patients. Conclusion: The diagnosis of PRES has important therapeutic and prognostic value. The use of diffusion–weighted imaging and ADC maps allows an earlier and clearer differentiation of cytotoxic and vasogenic edema, which can predict the development of infarction