The DW MR pulse sequence is a valuable technique. It provides information on the physiologic state of the brain and is particularly sensitive to ischemic infarction.
We recommend its use when there is an acute neurologic deficit.
As DW imaging improves and becomes more widespread, it is expected to play a greater role in the diagnosis of hyperacute and acute stroke and in the differentiation of stroke from other disease processes that manifest with acute neurologic deficits.
DW MR imaging will also play a greater role in the management of stroke and may be helpful in the selection of patients for thrombolysis and in the evaluation of new neuroprotective agents. It may prove to be valuable in the evaluation of a wide variety of other disease processes, as described in this review.
Finally, in patient with acute neurologic deficits, if difffusion weighted image is positive, you can diagnose brain infarction, but if it is negative, now you are confronted with transient ischemic attack or other causes.
Finally, in patient with acute neurologic deficits, if difffusion weighted image is positive, you can diagnose brain infarction, but if it is negative, now you are confronted with transient ischemic attack or other causes.
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