الفهرس 
Introduction and aim of the workOnly 14 pages are availabe for public view
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Abstract
<U+2022>?MRI could reliably diagnose intracranial hemorrhage even hyperacute stage. <U+2022>?The use of functional MRI should be complementary to conventional MRI and not used alone in diagnosis of hemorrhage. <U+2022>?Gradient recalled echo sequence is the sequence of choice in diagnosis of all stages of intracerebral hemorrhage. <U+2022>?FLAIR is the most sensitive sequence in diagnosis of SAH. However, combination with spin echo is recommended to overcome flow artifacts which appear in the third and fourth ventricles in FLAIR images. <U+2022>?T1WI, GRE and b0 DWI are the best sequences in diagnosis of IVH. <U+2022>?Combined T1 and T2 are the best sequences in diagnosis of EDH, SDH, HI and hemorrhagic SOL. <U+2022>?Measuring the ADC value inside the lesion could be used to differentiate between stages of intracerebral hemorrhage specially stages with intact RBCs membrane (hyperacute, acute and early subacute) and stages with lysed membrane (late subacute and chronic stages). <U+2022>?ADC map is not specific in detection of hemorrhage. <U+2022>?Measuring ADC value inside different parts of ischemic lesions is helpful in differentiation between hemorrhagic infarction and non hemorrhagic one. <U+2022>?Inspite of low sensitivity of DWI in detection of SAH, it is very sensitive in detection of infarction occurring as a complication of vasospasm after hemorrhage and it detects it earlier than other modalities. <U+2022>?Hyperacute blood can be clearly differentiated from infarction by the presence of hypointense rim surrounding the hematoma in T2 WI and to less extent in T1WI. In absence of this rim, DWI can differentiate between both of them as infraction appears hyperintense in b1000 DWI while hemorrhage appears hypointense or of mixed intensity.