| Diagnosis of brain death using two-phase spiral CT. | |
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MedLine Citation:
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PMID: 9576648 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The purpose of this study was to determine the utility of spiral CT in the diagnosis of brain death. METHODS: Spiral CT was evaluated prospectively in 14 brain-dead patients and in 11 healthy subjects. A two-phase protocol was used. Twenty seconds after intravenous injection of a nonionic iodinized contrast medium, the CT table was drawn through the gantry at a rate of 10 mm/s while scanning was in progress. The second scanning phase was started automatically a mean of 54 seconds later, using the same parameters. Opacification or absence of opacification of carotid, vertebral, and basilar arteries and intracerebral veins was ascertained for each image in both phases. The diagnosis of brain death was confirmed by elecroencephalography (n = 7), angiography (n = 5), or both (n = 2). Statistical analysis with the Fisher exact test enabled us to compare the brain-dead patients with the healthy control subjects. RESULTS: In brain death, the pericallosal and terminal arteries of the cortex did not opacify during the two phases of spiral CT, whereas the superficial temporal arteries were always visible. The internal cerebral veins, the great cerebral vein, and the straight sinus did not opacify, whereas the superior ophthalmic veins were visible on both sides 13 times. For each vessel type, specificity was 100% for nonvascular opacification criteria on the right and left sides. CONCLUSION: Two-phase spiral CT can demonstrate the absence of intracerebral blood flow in brain death. |
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Authors:
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B Dupas; M Gayet-Delacroix; D Villers; D Antonioli; M F Veccherini; J P Soulillou |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: AJNR. American journal of neuroradiology Volume: 19 ISSN: 0195-6108 ISO Abbreviation: AJNR Am J Neuroradiol Publication Date: 1998 Apr |
Date Detail:
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Created Date: 1998-06-19 Completed Date: 1998-06-19 Revised Date: 2008-02-14 |
Medline Journal Info:
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Nlm Unique ID: 8003708 Medline TA: AJNR Am J Neuroradiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 641-7 Citation Subset: IM |
Affiliation:
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Service de Radiologie et d'Imagerie Médicale, Centre Hospitalier Universitaire de Nantes, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Brain Death / radiography* Cerebral Angiography Child Electroencephalography Female Humans Male Middle Aged Subtraction Technique Tomography, X-Ray Computed / methods* |
| Comments/Corrections | |
Comment In:
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AJNR Am J Neuroradiol. 1998 Apr;19(4):796
[PMID:
9576677
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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