| English |
| ct |
  |
|
| Attestation |
3
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| Part of speech |
Acronym
|
| Variant |
Computerized Tomography, CAT
|
| Definition |
Imaging technique using ionizing radiation that permits noninvasive depiction of the brain and other structures.
Imaging technique using ionizing radiation that permits non-invasive depiction of the brain and other structures. Brain CT reveals ventricular enlargement, differentiates gray from white matter, reveals the basal ganglia, and can identify certain parenchymal changes. Computed tomography is good at detecting blood and thus identifying image acute hemorrhage.
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| Definition source |
Loring D. W. 1999
Loring D.W. 1999
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| Context |
This can be interpreted as either a high or low success rate, depending on the theoretical stance adopted. Despite this, developments in new techniques like positron emission tomography (PET), which allow examination of changes in chemical activity in parts of the brain which on CT scanning are not structurally damaged, are showing that glucose metabolism changes are consistently found in brain regions unaffected by structural damage in aphasic subjects (see Metter 1987, for detailed review). The syndrome of Broca’s aphasia has undergone major revision also in recent years, mainly as a result of the development of improved imaging. This work has identifìed two separate conditions tradition.
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| Context source |
Sarno 1991
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| Figure source |
http://policlinico.uniud.it/istituti/radiologia/aree/TAC.html
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| Subject field |
Aphasia
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| Sub-field (level 1) |
Aphasiology
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| Sub-field (level 2) |
Clinical neuropsychology
Cognitive neuropsychology
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| Sub-field (level 3) |
Diagnosis-Neurophisiopathology
|
| Generic concept |
Neuroimaging
|
| Related concept |
Positron emission tomography, Magnetic resonance imaging
|
| it |
TC
|
| Reliability code |
3
|
| Note |
Computed tomography was originally called computed axial tomography (CAT) because images could be acquired only in the axial plane.
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