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Magnetic resonance imaging of cerebral hemorrhagic stroke
A Zaheer1, Y Ozsunar, P W Schaefer
1Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, USA. azaheer@caregroup.harvard.edu
Abstract:
Despite a traditional perception of reliance on computed tomography and lack of acceptance of magnetic resonance imaging (MRI) for detecting acute hemorrhage, MRI appears to be used increasingly in hemorrhagic stroke. This review addresses the MRI findings of acute hemorrhagic stroke obtained using relatively new imaging techniques. These new techniques have resulted in more acute stroke patients undergoing MRI examination. New information about the frequency and appearance of hemorrhage is emerging: for example, approximately 15-26% of cases of acute cerebral infarctions appear to be complicated by intracerebral hemorrhage. The MRI appearances of hemorrhagic transformation of ischemic infarction, as well as acute hypertensive intracerebral hemorrhage, are discussed based on clinical, biochemical, and technical aspects.
Insights
Magnetic resonance imaging (MRI) is increasingly used for acute hemorrhage detection in stroke, offering new insights into hemorrhagic transformation of ischemic infarction and hypertensive intracerebral hemorrhage.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Traditionally, computed tomography (CT) was preferred for acute hemorrhage detection.
- Magnetic resonance imaging (MRI) acceptance for acute hemorrhage is growing.
- Newer MRI techniques are enhancing its utility in acute stroke cases.
Purpose of the Study:
- To review MRI findings in acute hemorrhagic stroke using novel imaging techniques.
- To highlight emerging information on hemorrhage frequency and appearance in stroke.
- To discuss MRI characteristics of hemorrhagic transformation and hypertensive hemorrhage.
Main Methods:
- Review of current literature on MRI in acute hemorrhagic stroke.
- Analysis of new imaging techniques for hemorrhage detection.
- Discussion of clinical, biochemical, and technical aspects of MRI findings.
Main Results:
- MRI is increasingly utilized for acute hemorrhagic stroke.
- Approximately 15-26% of acute cerebral infarctions are complicated by intracerebral hemorrhage.
- New MRI techniques provide detailed insights into hemorrhage appearance.
Conclusions:
- MRI is becoming a valuable tool for diagnosing acute hemorrhagic stroke.
- Advanced MRI techniques improve the detection and characterization of hemorrhage.
- Understanding MRI findings is crucial for managing hemorrhagic stroke complications.