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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1991-8-21
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pubmed:abstractText |
The CT features of 66 hepatic haemangiomas and 77 malignant mass lesions were evaluated in a retrospective study. On plain CT the attenuation values of haemangiomas varied from 30 to 50 HU, and 57 (86.4%) of them were homogeneous in density. Two haemangiomas did not enhance after contrast injection, while the others showed immediate peripheral rim-like enhancement, 46 (69.7%) of which enhanced intensely and 18 faintly. 45 (68.2%) haemangiomas enhanced completely, 19 (28.8%) becoming hyperdense within 2 to 13 min (median 5.5 min) and 26 isodense in 3-45 min (median 8 min). The central opacification was incomplete in 19 (28.8%) lesions. The attenuation values in the malignant tumours varied from 10 to 58 HU on the plain scans and 50 (64.9%) were non-homogeneous in density. After contrast injection, 2 did not enhance, 2 enhanced homogeneously and 73 (94.8%) non-homogeneously. Predominantly peripheral enhancement was seen in 42 (54.5%) of the malignant lesions, with 35 (45.5%) being classed as faint and 7 (9.1%) intense. The attempt to identify the haemangiomas among the malignant lesions resulted in 35 true-positive results reflecting a sensitivity of 64.8%, a specificity of 100%, and an accuracy of 85.5%. The results of this study suggest that a proportion of haemangiomas presents CT features which justify a confident diagnosis.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:issn |
1012-5655
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
58
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
29-32
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2070098-Adult,
pubmed-meshheading:2070098-Aged,
pubmed-meshheading:2070098-Aged, 80 and over,
pubmed-meshheading:2070098-Diagnosis, Differential,
pubmed-meshheading:2070098-Female,
pubmed-meshheading:2070098-Hemangioma, Cavernous,
pubmed-meshheading:2070098-Humans,
pubmed-meshheading:2070098-Liver Neoplasms,
pubmed-meshheading:2070098-Male,
pubmed-meshheading:2070098-Middle Aged,
pubmed-meshheading:2070098-Neoplasms, Multiple Primary,
pubmed-meshheading:2070098-Tomography, X-Ray Computed
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pubmed:year |
1991
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pubmed:articleTitle |
Computed tomography of hepatic haemangiomas: a chance for a definite diagnosis.
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pubmed:affiliation |
Department of Diagnostic Radiology, University of Oulu, Finland.
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pubmed:publicationType |
Journal Article
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