SPECT, CT, and MRI in head injury: acute abnormalities followed up at six months
| Autor: | L. C. Scott, D. J. Wyper, Jim Patterson, Donald M. Hadley, J T Wilson, Graham M. Teasdale, A. Mitchener, M. Jones |
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| Rok vydání: | 1997 |
| Předmět: |
Adult
Male Adolescent Hemodynamics Single-photon emission computed tomography Central nervous system disease Neuroimaging medicine Craniocerebral Trauma Humans Tomography Emission-Computed Single-Photon medicine.diagnostic_test business.industry Head injury Brain Magnetic resonance imaging Blood flow Middle Aged medicine.disease Magnetic Resonance Imaging Psychiatry and Mental health Cerebral blood flow Female Surgery Neurology (clinical) Tomography X-Ray Computed Nuclear medicine business Follow-Up Studies Research Article |
| Zdroj: | Journal of Neurology, Neurosurgery & Psychiatry. 62:633-636 |
| ISSN: | 0022-3050 |
| DOI: | 10.1136/jnnp.62.6.633 |
| Popis: | Neuroimaging with single photon emission computed tomography (SPECT) using the cerebral blood flow tracer 99Tc(m)-HMPAO has been used to study acute functional alterations after head injury and residual abnormalities at six month follow up in 32 patients. Comparison has been made with anatomical abnormalities defined acutely with CT and on follow up with MRI. SPECT showed slightly more abnormalities than CT in the acute phase (49 regions of abnormally low tracer uptake on SPECT and 45 lesions on CT). Twenty two of the acute SPECT abnormalities were in normal regions on CT. At follow up MRI showed more abnormalities than SPECT (30 on SPECT and 48 on MRI). Ten of the SPECT deficits were in regions with normal MRI. Comparison of the intensity of late and early SPECT deficits showed that only four early deficits deteriorated whereas 28 improved. Only five of 27 lesions seen on both acute SPECT and CT resolved compared with 16 of 22 lesions seen on SPECT but not on CT. Regions of abnormally high tracer uptake were detected in the acute stage in five of the patients. No high focal uptake was evident on follow up. Ten patients with a residual SPECT abnormality and eight with residual MRI lesions were graded clinically in the upper band of good recovery. |
| Databáze: | OpenAIRE |
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