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What to see when you are looking at confusion : a review of the neuroimaging of acute encephalopathy

Sutter, Raoul and Kaplan, Peter W.. (2014) What to see when you are looking at confusion : a review of the neuroimaging of acute encephalopathy. Journal of neurology, neurosurgery and psychiatry, Vol. 86, H. 4. pp. 446-459.

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Official URL: http://edoc.unibas.ch/dok/A6308384

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Abstract

Acute encephalopathy is a clinical conundrum in neurocritical care facing physicians with diagnostic and therapeutic challenges. Encephalopathy arises from several concurrent causes, and delayed diagnosis adds to its grim prognosis. Diagnosis is reached by melding clinical, neurophysiological and biochemical features with various neuroimaging studies. We aimed to compile the pathophysiology of acute encephalopathies in adults, and the contribution of cerebral CT, MRI, MR spectroscopy (MRS), positron emission tomography (PET) and single-photon emission CT (SPECT) to early diagnosis, treatment and prognostication. Reports from 1990 to 2013 were identified. Therefore, reference lists were searched to identify additional publications. Encephalopathy syndromes best studied by neuroimaging emerge from hypoxic-ischaemic injury, sepsis, metabolic derangements, autoimmune diseases, infections and rapidly evolving dementias. Typical and pathognomonic neuroimaging patterns are presented. Cerebral imaging constitutes an important component of diagnosis, management and prognosis of acute encephalopathy. Its respective contribution is dominated by rapid exclusion of acute cerebral lesions and further varies greatly depending on the underlying aetiology and the range of possible differential diagnoses. CT has been well studied, but is largely insensitive, while MRI appears to be the most helpful in the evaluation of encephalopathies. MRS may provide supplementary biochemical information and determines spectral changes in the affected brain tissue. The less frequently used PET and SPECT may delineate areas of high or low metabolic activity or cerebral blood flow. However, publications of MRS, PET and SPECT are limited only providing anecdotal evidence of their usefulness and sensitivity.
Faculties and Departments:03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik)
03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Neurologie
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Neurologie
03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Intensivmedizin > Intensivmedizin (Marsch)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Intensivmedizin > Intensivmedizin (Marsch)
03 Faculty of Medicine
UniBasel Contributors:Sutter, Raoul Christian
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:British Medical Association
ISSN:0022-3050
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:08 May 2015 08:45
Deposited On:08 May 2015 08:45

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