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  • acute ischemic
  • 9,10 Most recently, diffusion-weighted imaging (DWI) MRI studies have shown that nearly half of traditionally defined TIA patients will exhibit a DWI lesion consistent with acute ischemic cerebral injury and nearly half of these DWI-positive lesions maintain persistent evidence of infarction on follow-up imaging. (ahajournals.org)
  • cerebral ischemic
  • 1 Time-based definitions for TIA first arose in the 1950s as an imprecise means to distinguish between the cerebral ischemic episodes that caused brain injury and those that did not in the absence of imaging or other laboratory measures that could directly determine tissue parenchymal status. (ahajournals.org)
  • occurs
  • Atherosclerosis (atheroma=deposits of cholesterol and fatty tissue + sclerosis + narrowing) of the brain arteries is the same as the narrowing that occurs in heart arteries preceding a heart attack . (emedicinehealth.com)
  • A transient ischemic attack occurs when blood flow to a part of the brain stops for a brief time. (adam.com)
  • Imaging
  • DR. CHELSEA KIDWELL said the biggest challenge is getting the larger medical community to understand the importance of early imaging and prognosis because the time-based definition is so ingrained in the medical field. (lww.com)
  • If you had a transient ischemic attack many months ago would any type of imaging show any signs of it now? (healthtap.com)