Matches in SemOpenAlex for { <https://semopenalex.org/work/W1808386757> ?p ?o ?g. }
- W1808386757 endingPage "6578" @default.
- W1808386757 startingPage "6572" @default.
- W1808386757 abstract "This technical note quantifies the dose and image quality performance of a clinically available organ-dose-based tube current modulation (ODM) technique, using experimental and simulation phantom studies. The investigated ODM implementation reduces the tube current for the anterior source positions, without increasing current for posterior positions, although such an approach was also evaluated for comparison.Axial CT scans at 120 kV were performed on head and chest phantoms on an ODM-equipped scanner (Optima CT660, GE Healthcare, Chalfont St. Giles, England). Dosimeters quantified dose to breast, lung, heart, spine, eye lens, and brain regions for ODM and 3D-modulation (SmartmA) settings. Monte Carlo simulations, validated with experimental data, were performed on 28 voxelized head phantoms and 10 chest phantoms to quantify organ dose and noise standard deviation. The dose and noise effects of increasing the posterior tube current were also investigated.ODM reduced the dose for all experimental dosimeters with respect to SmartmA, with average dose reductions across dosimeters of 31% (breast), 21% (lung), 24% (heart), 6% (spine), 19% (eye lens), and 11% (brain), with similar results for the simulation validation study. In the phantom library study, the average dose reduction across all phantoms was 34% (breast), 20% (lung), 8% (spine), 20% (eye lens), and 8% (brain). ODM increased the noise standard deviation in reconstructed images by 6%-20%, with generally greater noise increases in anterior regions. Increasing the posterior tube current provided similar dose reduction as ODM for breast and eye lens, increased dose to the spine, with noise effects ranging from 2% noise reduction to 16% noise increase. At noise equal to SmartmA, ODM increased the estimated effective dose by 4% and 8% for chest and head scans, respectively. Increasing the posterior tube current further increased the effective dose by 15% (chest) and 18% (head) relative to SmartmA.ODM reduced dose in all experimental and simulation studies over a range of phantoms, while increasing noise. The results suggest a net dose/noise benefit for breast and eye lens for all studied phantoms, negligible lung dose effects for two phantoms, increased lung dose and/or noise for eight phantoms, and increased dose and/or noise for brain and spine for all studied phantoms compared to the reference protocol." @default.
- W1808386757 created "2016-06-24" @default.
- W1808386757 creator A5016049919 @default.
- W1808386757 creator A5068445241 @default.
- W1808386757 creator A5068810454 @default.
- W1808386757 creator A5091232558 @default.
- W1808386757 date "2015-10-20" @default.
- W1808386757 modified "2023-10-16" @default.
- W1808386757 title "Technical Note: Phantom study to evaluate the dose and image quality effects of a computed tomography organ‐based tube current modulation technique" @default.
- W1808386757 cites W1508982818 @default.
- W1808386757 cites W1964883381 @default.
- W1808386757 cites W1985330190 @default.
- W1808386757 cites W1993933932 @default.
- W1808386757 cites W2007413430 @default.
- W1808386757 cites W2015892377 @default.
- W1808386757 cites W2017579767 @default.
- W1808386757 cites W2043806601 @default.
- W1808386757 cites W2068515193 @default.
- W1808386757 cites W2080712992 @default.
- W1808386757 cites W2086156696 @default.
- W1808386757 cites W2101114793 @default.
- W1808386757 cites W2115971940 @default.
- W1808386757 cites W2145775966 @default.
- W1808386757 cites W2163968166 @default.
- W1808386757 cites W2165291296 @default.
- W1808386757 cites W2166133072 @default.
- W1808386757 cites W2167236160 @default.
- W1808386757 cites W2331021829 @default.
- W1808386757 cites W4250477264 @default.
- W1808386757 doi "https://doi.org/10.1118/1.4933197" @default.
- W1808386757 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26520748" @default.
- W1808386757 hasPublicationYear "2015" @default.
- W1808386757 type Work @default.
- W1808386757 sameAs 1808386757 @default.
- W1808386757 citedByCount "25" @default.
- W1808386757 countsByYear W18083867572016 @default.
- W1808386757 countsByYear W18083867572017 @default.
- W1808386757 countsByYear W18083867572018 @default.
- W1808386757 countsByYear W18083867572019 @default.
- W1808386757 countsByYear W18083867572020 @default.
- W1808386757 countsByYear W18083867572021 @default.
- W1808386757 countsByYear W18083867572022 @default.
- W1808386757 countsByYear W18083867572023 @default.
- W1808386757 crossrefType "journal-article" @default.
- W1808386757 hasAuthorship W1808386757A5016049919 @default.
- W1808386757 hasAuthorship W1808386757A5068445241 @default.
- W1808386757 hasAuthorship W1808386757A5068810454 @default.
- W1808386757 hasAuthorship W1808386757A5091232558 @default.
- W1808386757 hasBestOaLocation W18083867572 @default.
- W1808386757 hasConcept C104293457 @default.
- W1808386757 hasConcept C105636585 @default.
- W1808386757 hasConcept C115961682 @default.
- W1808386757 hasConcept C120665830 @default.
- W1808386757 hasConcept C121332964 @default.
- W1808386757 hasConcept C136229726 @default.
- W1808386757 hasConcept C154945302 @default.
- W1808386757 hasConcept C2779751349 @default.
- W1808386757 hasConcept C2989005 @default.
- W1808386757 hasConcept C35772409 @default.
- W1808386757 hasConcept C41008148 @default.
- W1808386757 hasConcept C55020928 @default.
- W1808386757 hasConcept C71924100 @default.
- W1808386757 hasConcept C75088862 @default.
- W1808386757 hasConcept C99498987 @default.
- W1808386757 hasConceptScore W1808386757C104293457 @default.
- W1808386757 hasConceptScore W1808386757C105636585 @default.
- W1808386757 hasConceptScore W1808386757C115961682 @default.
- W1808386757 hasConceptScore W1808386757C120665830 @default.
- W1808386757 hasConceptScore W1808386757C121332964 @default.
- W1808386757 hasConceptScore W1808386757C136229726 @default.
- W1808386757 hasConceptScore W1808386757C154945302 @default.
- W1808386757 hasConceptScore W1808386757C2779751349 @default.
- W1808386757 hasConceptScore W1808386757C2989005 @default.
- W1808386757 hasConceptScore W1808386757C35772409 @default.
- W1808386757 hasConceptScore W1808386757C41008148 @default.
- W1808386757 hasConceptScore W1808386757C55020928 @default.
- W1808386757 hasConceptScore W1808386757C71924100 @default.
- W1808386757 hasConceptScore W1808386757C75088862 @default.
- W1808386757 hasConceptScore W1808386757C99498987 @default.
- W1808386757 hasFunder F4320306076 @default.
- W1808386757 hasIssue "11" @default.
- W1808386757 hasLocation W18083867571 @default.
- W1808386757 hasLocation W18083867572 @default.
- W1808386757 hasLocation W18083867573 @default.
- W1808386757 hasOpenAccess W1808386757 @default.
- W1808386757 hasPrimaryLocation W18083867571 @default.
- W1808386757 hasRelatedWork W1970166536 @default.
- W1808386757 hasRelatedWork W2039636959 @default.
- W1808386757 hasRelatedWork W2057198737 @default.
- W1808386757 hasRelatedWork W2356852134 @default.
- W1808386757 hasRelatedWork W2385647946 @default.
- W1808386757 hasRelatedWork W2791849425 @default.
- W1808386757 hasRelatedWork W2810545718 @default.
- W1808386757 hasRelatedWork W3044124462 @default.
- W1808386757 hasRelatedWork W3189757624 @default.
- W1808386757 hasRelatedWork W4307737245 @default.
- W1808386757 hasVolume "42" @default.
- W1808386757 isParatext "false" @default.