Source:http://linkedlifedata.com/resource/pubmed/id/10525772
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1999-11-30
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pubmed:abstractText |
Our purpose was to assess the value of routine administration of intravenous gadolinium-DTPA (Gd-DTPA) for cranial MR in a series of human immunodeficiency virus (HIV)-positive patients. Two radiologists retrospectively reviewed 150 consecutive examinations of 104 patients. All patients underwent unenhanced and contrast-enhanced images. Each radiologist independently assessed first the unenhanced images alone and then the pre- and postinjection images together. Then both reviewed the complete study and produced a consensus report. The history, investigations and management were collated separately and were unknown to the radiologists. Contrast-enhanced T1-weighted images showed new focal abnormalities, not seen on the T2-weighted or unenhanced images in 15 (14 %) patients, but almost always in the context of abnormal unenhanced images. In only 2 patients (2 %) did contrast medium reveal abnormalities when the unenhanced study had been considered normal. In only 1 of these (1 %) was the new finding, cytomegalovirus diffuse ependymal enhancement, of clinical importance, although the diagnosis of encephalitis was made on routine examination of cerebrospinal-fluid. The other revealed a toxoplasma lesion in a patient known to have resolving disease. Meningeal disease not suspected on the unenhanced images was shown in 2 patients (2 %). In these case the unenhanced images were abnormal in other respects. Intravenous Gd-DTPA was helpful to the radiologist in making a radiological diagnosis in 11 patients (11 %), usually by improving characterisation of a lesion seen on the unenhanced images. The contribution of intravenous Gd-DTPA in this series does not warrant recommending its use in every case.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0028-3940
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
41
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
687-95
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:10525772-AIDS Dementia Complex,
pubmed-meshheading:10525772-AIDS-Related Opportunistic Infections,
pubmed-meshheading:10525772-Adult,
pubmed-meshheading:10525772-Brain,
pubmed-meshheading:10525772-Brain Diseases,
pubmed-meshheading:10525772-Contrast Media,
pubmed-meshheading:10525772-Diagnosis, Differential,
pubmed-meshheading:10525772-Female,
pubmed-meshheading:10525772-Gadolinium DTPA,
pubmed-meshheading:10525772-Humans,
pubmed-meshheading:10525772-Image Enhancement,
pubmed-meshheading:10525772-Magnetic Resonance Imaging,
pubmed-meshheading:10525772-Male,
pubmed-meshheading:10525772-Middle Aged,
pubmed-meshheading:10525772-Retrospective Studies,
pubmed-meshheading:10525772-Sensitivity and Specificity
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pubmed:year |
1999
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pubmed:articleTitle |
MRI of the brain in HIV-positive patients: what is the value of routine intravenous contrast medium?
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pubmed:affiliation |
Department of Radiology, Guy's & Thomas' Trust, St. Thomas' Hospital, London SE1 7EH, UK.
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pubmed:publicationType |
Journal Article
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