TY - JOUR ID - TI - Diffusion‐weighted MRI in patients with acute stroke AU - Sahar Basim Ahmed PY - 2014 VL - 13 IS - 2 SP - 7 EP - 11 JO - Mustansiriya Medical Journal مجلة المستنصرية الطبية SN - 20701128 22274081 AB - Background: Acute stroke is an abrupt non‐traumatic brain insult, caused byeither brain infarction (75%) or hemorrhage (25%).Aim of the Study: To compare the sensitivity of Diffusion ‐ weighted imaging(DWI) and apparent diffusion coefficient (ADC) map in detection of acutestroke with sensitivity of conventional MRI study.Patients &methods: Thirty ‐ eight patients (24 male and 14 female with agerange between 43‐90 years) with a clinically suggestive stroke and negativeCT‐scan, all patients referred for MRI study within 4‐40 hours [mean of 17 hrs]of acute attack. brain MRI was performed for these patients. Starting withconventional MRI sequences done followed by diffusion weighted in thesame study and follow up clinically afterwards. The study was conducted ina general hospital in Baghdad from January 2012 to January 2013 .Ratios werecalculated between the apparent diffusion coefficient value of normalappearing brain in the right & left hemispheres & between apparent diffusioncoefficient value of the ischemic area & the corresponding contralateralregion .Results: With diffusion ‐ weighted images , 100% of the ischemic lesionswere detected, and with fluid‐attenuated inversion recovery, 73.7% weredetected, whereas with early T2‐weighted or T1‐weighted, only 52.6 % and21% of lesions were detected , respectively , using McNemar test we foundstatistically significant differences in sensitivity between Diffusion weightedimages and T1W (p ER -