A Primer on Computed Tomography Perfusion Imaging for the Emergency Physician |
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| Affiliation: | 1. Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts;2. Harvard Medical School, Boston, Massachusetts;3. Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts;1. Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan;2. Walter Reed National Military Medical Center, Bethesda, Maryland;1. Schwartz/Reisman Emergency Medicine Institute, Toronto, Ontario, Canada;2. Sinai Health System, Toronto, Ontario, Canada;3. Division of Emergency Medicine, Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada;1. UTHealth School of Public Health in San Antonio, San Antonio, Texas;2. UTHealth Long School of Medicine, San Antonio, Texas;3. University of Hawaii Internal Medicine Residency Program, Honolulu, Hawaii;4. UTHealth School of Public Health in Houston, Houston, Texas;1. Department of Pharmacy, Massachusetts General Hospital, Boston, Massachusetts;2. Department of Emergency Medicine, Harvard Medical School, Boston, Massachusetts;3. Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts |
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| Abstract: | BackgroundBrain noncontrast computed tomography (CT), CT angiography, and magnetic resonance imaging have been used clinically for decades, and emergency physicians have a good understanding of their indications, the meaning of their results, and some facility with the interpretation of CT. However, brain CT perfusion (CTP) is relatively new and emergency physicians are less familiar with its basic concepts, indications, and role in managing patients with neurological emergencies.ObjectiveWe will review the parameters of clinical interest on a CTP report, and how to incorporate them into clinical decision-making.DiscussionEndovascular therapies paired with CTP have opened up a new frontier in stroke management for severely debilitated stroke patients. It is important for emergency physicians to have an understanding of CTP and how to use it clinically.ConclusionTaking care of patients with large-vessel occlusions is multidisciplinary, and emergency physicians need to understand CTP imaging and its clinical utility. |
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| Keywords: | computed tomography perfusion CTP perfusion stroke large vessel occlusion |
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