Matches in SemOpenAlex for { <https://semopenalex.org/work/W2051032218> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2051032218 endingPage "381" @default.
- W2051032218 startingPage "372" @default.
- W2051032218 abstract "Objectives Computed tomography (CT) automatic exposure control (AEC) systems are now used in all modern PET-CT scanners. A collaborative study was undertaken to compare AEC techniques of the three major PET-CT manufacturers for fluorine-18 fluorodeoxyglucose half-body oncology imaging. Materials and methods An audit of 70 patients was performed for half-body CT scans taken on a GE Discovery 690, Philips Gemini TF and Siemens Biograph mCT (all 64-slice CT). Patient demographic and dose information was recorded and image noise was calculated as the SD of Hounsfield units in the liver. A direct comparison of the AEC systems was made by scanning a Rando phantom on all three systems for a range of AEC settings. Results The variation in dose and image quality with patient weight was significantly different for all three systems, with the GE system showing the largest variation in dose with weight and Philips the least. Image noise varied with patient weight in Philips and Siemens systems but was constant for all weights in GE. The z-axis mA profiles from the Rando phantom demonstrate that these differences are caused by the nature of the tube current modulation techniques applied. The mA profiles varied considerably according to the AEC settings used. Conclusion CT AEC techniques from the three manufacturers yield significantly different tube current modulation patterns and hence deliver different doses and levels of image quality across a range of patient weights. Users should be aware of how their system works and of steps that could be taken to optimize imaging protocols." @default.
- W2051032218 created "2016-06-24" @default.
- W2051032218 creator A5032802436 @default.
- W2051032218 creator A5061180165 @default.
- W2051032218 date "2014-04-01" @default.
- W2051032218 modified "2023-09-23" @default.
- W2051032218 title "Computed tomography automatic exposure control techniques in 18F-FDG oncology PET-CT scanning" @default.
- W2051032218 cites W1969850810 @default.
- W2051032218 cites W1976313006 @default.
- W2051032218 cites W1982060149 @default.
- W2051032218 cites W1983228293 @default.
- W2051032218 cites W1998809767 @default.
- W2051032218 cites W2005058208 @default.
- W2051032218 cites W2015892377 @default.
- W2051032218 cites W2027191323 @default.
- W2051032218 cites W2029580639 @default.
- W2051032218 cites W2046922927 @default.
- W2051032218 cites W2063887054 @default.
- W2051032218 cites W2074719332 @default.
- W2051032218 cites W2089221057 @default.
- W2051032218 cites W2111531268 @default.
- W2051032218 cites W2134276580 @default.
- W2051032218 cites W2166133072 @default.
- W2051032218 cites W2326218445 @default.
- W2051032218 cites W2004083297 @default.
- W2051032218 doi "https://doi.org/10.1097/mnm.0000000000000064" @default.
- W2051032218 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24445670" @default.
- W2051032218 hasPublicationYear "2014" @default.
- W2051032218 type Work @default.
- W2051032218 sameAs 2051032218 @default.
- W2051032218 citedByCount "16" @default.
- W2051032218 countsByYear W20510322182015 @default.
- W2051032218 countsByYear W20510322182017 @default.
- W2051032218 countsByYear W20510322182018 @default.
- W2051032218 countsByYear W20510322182019 @default.
- W2051032218 countsByYear W20510322182021 @default.
- W2051032218 countsByYear W20510322182022 @default.
- W2051032218 countsByYear W20510322182023 @default.
- W2051032218 crossrefType "journal-article" @default.
- W2051032218 hasAuthorship W2051032218A5032802436 @default.
- W2051032218 hasAuthorship W2051032218A5061180165 @default.
- W2051032218 hasConcept C100053769 @default.
- W2051032218 hasConcept C104293457 @default.
- W2051032218 hasConcept C115961682 @default.
- W2051032218 hasConcept C121332964 @default.
- W2051032218 hasConcept C126838900 @default.
- W2051032218 hasConcept C154945302 @default.
- W2051032218 hasConcept C178451039 @default.
- W2051032218 hasConcept C187954543 @default.
- W2051032218 hasConcept C19527891 @default.
- W2051032218 hasConcept C2775842073 @default.
- W2051032218 hasConcept C2776410896 @default.
- W2051032218 hasConcept C2989005 @default.
- W2051032218 hasConcept C35772409 @default.
- W2051032218 hasConcept C41008148 @default.
- W2051032218 hasConcept C544519230 @default.
- W2051032218 hasConcept C55020928 @default.
- W2051032218 hasConcept C62520636 @default.
- W2051032218 hasConcept C71924100 @default.
- W2051032218 hasConceptScore W2051032218C100053769 @default.
- W2051032218 hasConceptScore W2051032218C104293457 @default.
- W2051032218 hasConceptScore W2051032218C115961682 @default.
- W2051032218 hasConceptScore W2051032218C121332964 @default.
- W2051032218 hasConceptScore W2051032218C126838900 @default.
- W2051032218 hasConceptScore W2051032218C154945302 @default.
- W2051032218 hasConceptScore W2051032218C178451039 @default.
- W2051032218 hasConceptScore W2051032218C187954543 @default.
- W2051032218 hasConceptScore W2051032218C19527891 @default.
- W2051032218 hasConceptScore W2051032218C2775842073 @default.
- W2051032218 hasConceptScore W2051032218C2776410896 @default.
- W2051032218 hasConceptScore W2051032218C2989005 @default.
- W2051032218 hasConceptScore W2051032218C35772409 @default.
- W2051032218 hasConceptScore W2051032218C41008148 @default.
- W2051032218 hasConceptScore W2051032218C544519230 @default.
- W2051032218 hasConceptScore W2051032218C55020928 @default.
- W2051032218 hasConceptScore W2051032218C62520636 @default.
- W2051032218 hasConceptScore W2051032218C71924100 @default.
- W2051032218 hasIssue "4" @default.
- W2051032218 hasLocation W20510322181 @default.
- W2051032218 hasLocation W20510322182 @default.
- W2051032218 hasOpenAccess W2051032218 @default.
- W2051032218 hasPrimaryLocation W20510322181 @default.
- W2051032218 hasRelatedWork W2047952491 @default.
- W2051032218 hasRelatedWork W2051032218 @default.
- W2051032218 hasRelatedWork W2053086298 @default.
- W2051032218 hasRelatedWork W2105162923 @default.
- W2051032218 hasRelatedWork W2215132873 @default.
- W2051032218 hasRelatedWork W2745571083 @default.
- W2051032218 hasRelatedWork W2790296010 @default.
- W2051032218 hasRelatedWork W2802795036 @default.
- W2051032218 hasRelatedWork W3194988825 @default.
- W2051032218 hasRelatedWork W2004083297 @default.
- W2051032218 hasVolume "35" @default.
- W2051032218 isParatext "false" @default.
- W2051032218 isRetracted "false" @default.
- W2051032218 magId "2051032218" @default.
- W2051032218 workType "article" @default.