Chronic subdural hematoma: demonstration by magnetic resonance

Journal Article · Sun Jan 01 00:00:00 EST 1984 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.150.1.6689791· OSTI ID:6724772

Sipponen, J T; Sepponen, R E; Sivula, A

The ability of magnetic resonance (MR) to identify intracranial hematomas was tested in five patients with clinical and computed tomographic signs of chronic subdural hematoma. The extracerebral collections were displayed as a zone of bright intensity using the T1-weighted inversion recovery (IR 1500/400) sequence, reflecting the lesions' short T1 relaxation times. The collections also showed high intensity using the spin echo (SE) sequence, with a longer delay of 100ms and 160ms, reflecting the long T2 relaxation time. The spin echo sequence with a repetition time of 500ms and an echo delay of 160ms (SE 500/160) almost effaced other structures in the image, thus increasing the specificity of this pulse scheme for detection of chronic blood collections. Although in two of the five patients the subdural hematomas were in the isodense CT phase, all were easily visualized with MR.

• Research Organization: Univ. Central Hospital, Helsinki, Finland
• OSTI ID: 6724772
• Journal Information: Radiology; (United States), Vol. 150:1
• Country of Publication: United States
• Language: English

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62 RADIOLOGY AND NUCLEAR MEDICINE
BRAIN
COMPUTERIZED TOMOGRAPHY
NUCLEAR MAGNETIC RESONANCE
COMPARATIVE EVALUATIONS
HEMATOMAS
DIAGNOSIS
HEMORRHAGE
MENINGES
PATIENTS
SPIN ECHO
BODY
CENTRAL NERVOUS SYSTEM
DIAGNOSTIC TECHNIQUES
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MEMBRANES
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SYMPTOMS
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550602* - Medicine- External Radiation in Diagnostics- (1980-)