Matches in SemOpenAlex for { <https://semopenalex.org/work/W2736497215> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W2736497215 endingPage "780" @default.
- W2736497215 startingPage "779" @default.
- W2736497215 abstract "Quality assurance (QA) phantoms for testing different image quality parameters in computed tomography (CT) are commercially available. Such phantoms are also used as reference for acceptance in the specifications of CT-scanners. The aim of this study was to analyze the characteristics of the most commonly used QA phantom in CT: Catphan 500/504/600.Nine different phantoms were scanned on the same day, on one CT-scanner with the same parameter settings. Interphantom variations in CT-number values, image uniformity and low contrast resolution were evaluated for the phantoms. Comparisons between manual image analysis and results obtained from the automatic evaluation software QAlite were performed.Some interphantom variations were observed in the low contrast resolution and the CT-number modules of the phantoms. Depending on the chosen regulatory framework, the variations in CT-numbers can be interpreted as substantial. The homogenous modules were found more invariable. However, the automatic image analysis software QAlite measures image uniformity differently than recommended in international standards, and will not necessarily give results in agreement with these standards.It is important to consider the interphantom variations in relation to ones framework, and to be aware of which phantom is used to study CT-numbers and low contrast resolution for a specific scanner. Comparisons with predicted values from manual and acceptance values should be performed with care and consideration. If automatic software-based evaluations are to be used, users should be aware that large differences can exist for the image uniformity testing." @default.
- W2736497215 created "2017-07-31" @default.
- W2736497215 creator A5009342558 @default.
- W2736497215 date "1977-11-01" @default.
- W2736497215 modified "2023-10-17" @default.
- W2736497215 title "Communication between doctors and patients" @default.
- W2736497215 doi "https://doi.org/10.1016/0037-7856(77)90168-8" @default.
- W2736497215 hasPublicationYear "1977" @default.
- W2736497215 type Work @default.
- W2736497215 sameAs 2736497215 @default.
- W2736497215 citedByCount "0" @default.
- W2736497215 crossrefType "journal-article" @default.
- W2736497215 hasAuthorship W2736497215A5009342558 @default.
- W2736497215 hasConcept C104293457 @default.
- W2736497215 hasConcept C106436119 @default.
- W2736497215 hasConcept C115903868 @default.
- W2736497215 hasConcept C115961682 @default.
- W2736497215 hasConcept C126838900 @default.
- W2736497215 hasConcept C131377759 @default.
- W2736497215 hasConcept C142724271 @default.
- W2736497215 hasConcept C154945302 @default.
- W2736497215 hasConcept C19527891 @default.
- W2736497215 hasConcept C199360897 @default.
- W2736497215 hasConcept C205372480 @default.
- W2736497215 hasConcept C2776502983 @default.
- W2736497215 hasConcept C2777904410 @default.
- W2736497215 hasConcept C2778618615 @default.
- W2736497215 hasConcept C2779751349 @default.
- W2736497215 hasConcept C2989005 @default.
- W2736497215 hasConcept C31972630 @default.
- W2736497215 hasConcept C41008148 @default.
- W2736497215 hasConcept C544519230 @default.
- W2736497215 hasConcept C55020928 @default.
- W2736497215 hasConcept C71924100 @default.
- W2736497215 hasConceptScore W2736497215C104293457 @default.
- W2736497215 hasConceptScore W2736497215C106436119 @default.
- W2736497215 hasConceptScore W2736497215C115903868 @default.
- W2736497215 hasConceptScore W2736497215C115961682 @default.
- W2736497215 hasConceptScore W2736497215C126838900 @default.
- W2736497215 hasConceptScore W2736497215C131377759 @default.
- W2736497215 hasConceptScore W2736497215C142724271 @default.
- W2736497215 hasConceptScore W2736497215C154945302 @default.
- W2736497215 hasConceptScore W2736497215C19527891 @default.
- W2736497215 hasConceptScore W2736497215C199360897 @default.
- W2736497215 hasConceptScore W2736497215C205372480 @default.
- W2736497215 hasConceptScore W2736497215C2776502983 @default.
- W2736497215 hasConceptScore W2736497215C2777904410 @default.
- W2736497215 hasConceptScore W2736497215C2778618615 @default.
- W2736497215 hasConceptScore W2736497215C2779751349 @default.
- W2736497215 hasConceptScore W2736497215C2989005 @default.
- W2736497215 hasConceptScore W2736497215C31972630 @default.
- W2736497215 hasConceptScore W2736497215C41008148 @default.
- W2736497215 hasConceptScore W2736497215C544519230 @default.
- W2736497215 hasConceptScore W2736497215C55020928 @default.
- W2736497215 hasConceptScore W2736497215C71924100 @default.
- W2736497215 hasIssue "14-16" @default.
- W2736497215 hasLocation W27364972151 @default.
- W2736497215 hasOpenAccess W2736497215 @default.
- W2736497215 hasPrimaryLocation W27364972151 @default.
- W2736497215 hasRelatedWork W1503592206 @default.
- W2736497215 hasRelatedWork W1993699893 @default.
- W2736497215 hasRelatedWork W2026665463 @default.
- W2736497215 hasRelatedWork W2034235690 @default.
- W2736497215 hasRelatedWork W2499114499 @default.
- W2736497215 hasRelatedWork W2736497215 @default.
- W2736497215 hasRelatedWork W4206300121 @default.
- W2736497215 hasRelatedWork W4288689862 @default.
- W2736497215 hasRelatedWork W4308840296 @default.
- W2736497215 hasRelatedWork W4377982434 @default.
- W2736497215 hasVolume "11" @default.
- W2736497215 isParatext "false" @default.
- W2736497215 isRetracted "false" @default.
- W2736497215 magId "2736497215" @default.
- W2736497215 workType "article" @default.