Intracerebral hemorrhage MRI: Difference between revisions
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Revision as of 17:17, 30 November 2016
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Intracerebral hemorrhage Microchapters |
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Diagnosis |
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Treatment |
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AHA/ASA Guidelines for the Management of Spontaneous Intracerebral Hemorrhage (2015) |
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AHA/ASA Guideline Recommendation for the Primary Prevention of Stroke (2014) |
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Case Studies |
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Intracerebral hemorrhage MRI On the Web |
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American Roentgen Ray Society Images of Intracerebral hemorrhage MRI |
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Risk calculators and risk factors for Intracerebral hemorrhage MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sara Mehrsefat, M.D. [2]
Overview
MRI is better than CT for detection of acute and chronic hemorrhage. Therefore it should be the preferred test for accurate diagnosis of patients with suspected intracerebral hemorrhage.[1]
MRI
MRI is better than CT for detection of acute and chronic hemorrhage. Therefore it should be the preferred test for accurate diagnosis of patients with suspected intracerebral hemorrhage.[1]
- T2 susceptibility-weighted MRI are as sensitive as CT for detection of acute blood and are more sensitive for identification of prior hemorrhage.[1]
- The appearance of Intracerebral hemorrhage on MRI depends on the age of the hematoma and the type of MR sequence (T1-MRI or T2-MRI).
- As the hematoma ages, hemoglobin (Hb) goes through the following stages:
- Initial 7 days: oxy-Hb→deoxy-Hb→met-Hb
| Stage | Age | Hemoglobin | 1-MRI | 2-MRI |
|---|---|---|---|---|
| Hyperacute | < 24 hours | Intracellular oxy-Hb | Isointense | Very hyperintense |
| Acute | 1-3 days | Intracellular deoxy-Hb | Slightly hypointense | Very hypointense |
| Early subacute | >3 days | Intracellular met-Hb | Very hyperintense | Very hypointense |
| Late subacute | >7 days | Extracellular met-Hb | Very hyperintense | Very hypointense |
| Chronic center | >14 days | Extracellular hemichromes | Isointense | Very hyperintense |
| Chronic rim | >14 days | Intracellular hemosiderin | Slightly hypointense | Very hypointense |
Images
The following are images associated with intracerebral hemorrhage involves the left lentiform nucleus and internal capsule.[2]
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Axial T1 -
T2 -
Sagittal T1 C+
References
- ↑ 1.0 1.1 1.2 Chalela JA, Kidwell CS, Nentwich LM, Luby M, Butman JA, Demchuk AM; et al. (2007). "Magnetic resonance imaging and computed tomography in emergency assessment of patients with suspected acute stroke: a prospective comparison". Lancet. 369 (9558): 293–8. doi:10.1016/S0140-6736(07)60151-2. PMC 1859855. PMID 17258669.
- ↑ Intracerebral Hemotrrhage https://radiopaedia.org/cases/intracerebral-haemorrhage-2 Accessed on November 9, 2016