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CT and MRI of stroke
M M Bahn1, A B Oser, D T Cross
1Neuroradiology Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA.
Journal of Magnetic Resonance Imaging : JMRI
|September 1, 1996
Summary
This review covers CT and MRI imaging features for stroke, explaining how stroke pathophysiology influences findings. It details neuroimaging across hyperacute, acute, subacute, and chronic stages, including advanced MR techniques.
Area of Science:
- Radiology and Medical Imaging
- Neurology
- Neuroscience
Background:
- Stroke, a critical neurological event, necessitates timely and accurate diagnosis.
- Understanding the pathophysiology of stroke is fundamental to interpreting neuroimaging.
- Conventional computed tomography (CT) and magnetic resonance imaging (MRI) are cornerstones of stroke diagnosis.
Purpose of the Study:
- To present a comprehensive review of CT and MRI imaging features in stroke.
- To correlate neuroimaging findings with the underlying pathophysiology of stroke.
- To categorize and describe stroke imaging findings based on the time elapsed since ictus.
Main Methods:
- Review of existing literature on CT and MRI in stroke diagnosis.
- Discussion of stroke pathophysiology to contextualize imaging findings.
- Classification of neuroimaging findings into hyperacute, acute, subacute, and chronic phases.
Main Results:
- Detailed description of characteristic CT and MRI features for each stroke phase.
- Explanation of how pathophysiological changes manifest on imaging.
- Introduction to advanced magnetic resonance imaging (MRI) techniques, including perfusion and diffusion-weighted imaging (DWI).
Conclusions:
- CT and MRI provide crucial insights into stroke diagnosis and management.
- Temporal classification aids in understanding the evolution of imaging findings.
- Advanced MR techniques like DWI and perfusion imaging enhance early stroke detection and characterization.