Matches in SemOpenAlex for { <https://semopenalex.org/work/W1768022231> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W1768022231 abstract "The use of contrast enhancers has widened the possibilities of sonographic imaging, and allows the differentiation of characteristic enhancement patterns leading to diagnosis in focal liver lesions. The aim of our study was to evaluate contrast ultrasound signs in diagnosing malignant liver lesions.86 patients with 100 solid liver lesions were enrolled. A baseline gray-scale sonogram was obtained with a multifrequency 4 C convex array probe, followed by contrast-enhanced sonography with a low mechanical index (<0.2) over 300 seconds. Final diagnosis was confirmed by histology or in case of haemangioma by CT/NMR and quantitative contrast harmonic imaging (CHI) with perfusion analysis (contrast).55 malignant (6 HCC, 46 secondary malignant lesions - 3 of them lymphoma, 3 cholangiocarcinoma), and 45 benign lesions (8 FNH, 1 von Meyenburg complex, 1 granuloma, 3 adenoma, 21 hemangioma, 2 focal fat storage imbalances, 7 abscesses, one scar, and in one case normal liver) were found. 51/55 malignant (all but one filia and three HCC), but also 17/45 benign lesions showed hypoperfusion in the late phase. The ultrasound pattern in the arterial phase differed in malignant lesions: 22 lesions were initially hypervascular, 20 had rim enhancement and in 13 lesions there was a non-specific vascularisation. In all but one malignant lesion a diminishing of contrast agent in the late phase compared to the arterial phase with respect to the surrounding liver tissue was observed. Only three benign lesions with this later sign were falsely diagnosed as malignant: one adenoma, one epitheloid granuloma, and a scar. Quantitative perfusion pattern was analyzed exemplary. Diminishing of contrast agent in the late phase compared to the arterial phase with respect to the surrounding liver tissue as a sign for malignancy had a positive predictive value of 95%, a sensitivity of 98%, a negative predictive value of 98%, and a specificity of 93%.Diminishing of contrast agent in the late phase compared to the arterial phase with respect to the surrounding liver tissue is a helpful sign in contrast enhanced ultrasound to diagnose malignancies." @default.
- W1768022231 created "2016-06-24" @default.
- W1768022231 creator A5024224846 @default.
- W1768022231 creator A5032001306 @default.
- W1768022231 creator A5041065733 @default.
- W1768022231 creator A5043545448 @default.
- W1768022231 creator A5085788744 @default.
- W1768022231 creator A5089964625 @default.
- W1768022231 date "2009-01-01" @default.
- W1768022231 modified "2023-09-26" @default.
- W1768022231 title "Contrast-enhanced ultrasound in diagnosing liver malignancy" @default.
- W1768022231 doi "https://doi.org/10.3233/ch-2009-1225" @default.
- W1768022231 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19713605" @default.
- W1768022231 hasPublicationYear "2009" @default.
- W1768022231 type Work @default.
- W1768022231 sameAs 1768022231 @default.
- W1768022231 citedByCount "15" @default.
- W1768022231 countsByYear W17680222312012 @default.
- W1768022231 countsByYear W17680222312013 @default.
- W1768022231 countsByYear W17680222312014 @default.
- W1768022231 countsByYear W17680222312015 @default.
- W1768022231 countsByYear W17680222312017 @default.
- W1768022231 crossrefType "journal-article" @default.
- W1768022231 hasAuthorship W1768022231A5024224846 @default.
- W1768022231 hasAuthorship W1768022231A5032001306 @default.
- W1768022231 hasAuthorship W1768022231A5041065733 @default.
- W1768022231 hasAuthorship W1768022231A5043545448 @default.
- W1768022231 hasAuthorship W1768022231A5085788744 @default.
- W1768022231 hasAuthorship W1768022231A5089964625 @default.
- W1768022231 hasConcept C118552586 @default.
- W1768022231 hasConcept C126838900 @default.
- W1768022231 hasConcept C138010386 @default.
- W1768022231 hasConcept C142724271 @default.
- W1768022231 hasConcept C143753070 @default.
- W1768022231 hasConcept C146957229 @default.
- W1768022231 hasConcept C16568411 @default.
- W1768022231 hasConcept C2777428134 @default.
- W1768022231 hasConcept C2779399171 @default.
- W1768022231 hasConcept C2779585989 @default.
- W1768022231 hasConcept C2779889316 @default.
- W1768022231 hasConcept C2780191036 @default.
- W1768022231 hasConcept C2781156865 @default.
- W1768022231 hasConcept C2909655054 @default.
- W1768022231 hasConcept C64012434 @default.
- W1768022231 hasConcept C71924100 @default.
- W1768022231 hasConceptScore W1768022231C118552586 @default.
- W1768022231 hasConceptScore W1768022231C126838900 @default.
- W1768022231 hasConceptScore W1768022231C138010386 @default.
- W1768022231 hasConceptScore W1768022231C142724271 @default.
- W1768022231 hasConceptScore W1768022231C143753070 @default.
- W1768022231 hasConceptScore W1768022231C146957229 @default.
- W1768022231 hasConceptScore W1768022231C16568411 @default.
- W1768022231 hasConceptScore W1768022231C2777428134 @default.
- W1768022231 hasConceptScore W1768022231C2779399171 @default.
- W1768022231 hasConceptScore W1768022231C2779585989 @default.
- W1768022231 hasConceptScore W1768022231C2779889316 @default.
- W1768022231 hasConceptScore W1768022231C2780191036 @default.
- W1768022231 hasConceptScore W1768022231C2781156865 @default.
- W1768022231 hasConceptScore W1768022231C2909655054 @default.
- W1768022231 hasConceptScore W1768022231C64012434 @default.
- W1768022231 hasConceptScore W1768022231C71924100 @default.
- W1768022231 hasLocation W17680222311 @default.
- W1768022231 hasLocation W17680222312 @default.
- W1768022231 hasOpenAccess W1768022231 @default.
- W1768022231 hasPrimaryLocation W17680222311 @default.
- W1768022231 hasRelatedWork W111435775 @default.
- W1768022231 hasRelatedWork W2016132390 @default.
- W1768022231 hasRelatedWork W2136493427 @default.
- W1768022231 hasRelatedWork W2333808532 @default.
- W1768022231 hasRelatedWork W2351205559 @default.
- W1768022231 hasRelatedWork W2352717906 @default.
- W1768022231 hasRelatedWork W2353262795 @default.
- W1768022231 hasRelatedWork W2353959097 @default.
- W1768022231 hasRelatedWork W2354918171 @default.
- W1768022231 hasRelatedWork W2355385243 @default.
- W1768022231 hasRelatedWork W2357987490 @default.
- W1768022231 hasRelatedWork W2367371225 @default.
- W1768022231 hasRelatedWork W2367536819 @default.
- W1768022231 hasRelatedWork W2373218207 @default.
- W1768022231 hasRelatedWork W2374967062 @default.
- W1768022231 hasRelatedWork W2377698019 @default.
- W1768022231 hasRelatedWork W2378561559 @default.
- W1768022231 hasRelatedWork W2391951824 @default.
- W1768022231 hasRelatedWork W3029309564 @default.
- W1768022231 hasRelatedWork W3031755188 @default.
- W1768022231 isParatext "false" @default.
- W1768022231 isRetracted "false" @default.
- W1768022231 magId "1768022231" @default.
- W1768022231 workType "article" @default.