MRI in intracerebral hemorrhage
There has been a widespread belief that conventional MRI is less sensitive than CT in the detection of intracerebral hemorrhage. Much of this pessimism is based on a number of early trials using MR scanners with low field strengths. However, there is increasing evidence that echoplanar gradient-echo T2*-weighted imaging, also termed susceptibility
weighted imaging, is reliable in the detection of acute intraparenchymal hemorrhage. In addition, fluid-attenuated inversion recovery (FLAIR) imaging may detect subarachnoid hemorrhage. However, until large randomized controlled trials confirm the ability of MRI to detect intraparenchymal and subarachnoid hemorrhage, a screening CT must be considered in all stroke patients. The expense of any screening CT must be added to the
cost of performing MRI.
weighted imaging, is reliable in the detection of acute intraparenchymal hemorrhage. In addition, fluid-attenuated inversion recovery (FLAIR) imaging may detect subarachnoid hemorrhage. However, until large randomized controlled trials confirm the ability of MRI to detect intraparenchymal and subarachnoid hemorrhage, a screening CT must be considered in all stroke patients. The expense of any screening CT must be added to the
cost of performing MRI.
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