Matches in SemOpenAlex for { <https://semopenalex.org/work/W2059776711> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2059776711 abstract "This paper proposes a more inclusivestatistical model for predicting image noise in Computed Tomography (CT),associated with scanning factors, considering the effect of beam hardening andimage processing filters. It is based on power functions where the levels ofthe parameters will determine the rate of noise variation with respect to agiven scanning factor. It includes the influence of tubepotential, tube current, slice thickness, Field of View (FOV), reconstructionmethods and post-processing filters. To validate the model, tomographicmeasurements were made by using a PMMA phantom that simulates paediatric head and adult abdomen, a PETbottle was used to simulate the head of the new-born. The influence of ROI(Region Of Interest) size over nonlinear model parameters was analysed, andhigh variations of powers of attenuation and FOV were found depending on ROIsize. A nonlinear robust regression method was used. The validation was performed graphically by weighted residualanalysis. A nonlinearnoise model was obtained with an adjusted coefficient of determination for ROI sizes between 10% and 70% of the phantom diameter or FOV. Themodel confirms the significance of the tube current, slice thickness and beamhardening effect on image. The process of estimation of the parameters of themodel by Nonlinear Robust Regression turned out to be optimal." @default.
- W2059776711 created "2016-06-24" @default.
- W2059776711 creator A5002929698 @default.
- W2059776711 creator A5015121967 @default.
- W2059776711 creator A5054815814 @default.
- W2059776711 creator A5089377058 @default.
- W2059776711 date "2014-01-01" @default.
- W2059776711 modified "2023-10-17" @default.
- W2059776711 title "Nonlinear Model of Image Noise: An Application on Computed Tomography including Beam Hardening and Image Processing Algorithms" @default.
- W2059776711 cites W1986776317 @default.
- W2059776711 cites W2018012226 @default.
- W2059776711 cites W2021797624 @default.
- W2059776711 cites W2067136793 @default.
- W2059776711 cites W2071189636 @default.
- W2059776711 cites W2085015136 @default.
- W2059776711 cites W2122450421 @default.
- W2059776711 cites W2123947540 @default.
- W2059776711 cites W2125385074 @default.
- W2059776711 cites W2171081674 @default.
- W2059776711 cites W2408900355 @default.
- W2059776711 doi "https://doi.org/10.4236/am.2014.58116" @default.
- W2059776711 hasPublicationYear "2014" @default.
- W2059776711 type Work @default.
- W2059776711 sameAs 2059776711 @default.
- W2059776711 citedByCount "0" @default.
- W2059776711 crossrefType "journal-article" @default.
- W2059776711 hasAuthorship W2059776711A5002929698 @default.
- W2059776711 hasAuthorship W2059776711A5015121967 @default.
- W2059776711 hasAuthorship W2059776711A5054815814 @default.
- W2059776711 hasAuthorship W2059776711A5089377058 @default.
- W2059776711 hasBestOaLocation W20597767111 @default.
- W2059776711 hasConcept C104293457 @default.
- W2059776711 hasConcept C105795698 @default.
- W2059776711 hasConcept C11413529 @default.
- W2059776711 hasConcept C115961682 @default.
- W2059776711 hasConcept C120665830 @default.
- W2059776711 hasConcept C121332964 @default.
- W2059776711 hasConcept C152877465 @default.
- W2059776711 hasConcept C154945302 @default.
- W2059776711 hasConcept C158622935 @default.
- W2059776711 hasConcept C163716698 @default.
- W2059776711 hasConcept C19609008 @default.
- W2059776711 hasConcept C33923547 @default.
- W2059776711 hasConcept C35772409 @default.
- W2059776711 hasConcept C41008148 @default.
- W2059776711 hasConcept C46889948 @default.
- W2059776711 hasConcept C62520636 @default.
- W2059776711 hasConcept C9417928 @default.
- W2059776711 hasConcept C99498987 @default.
- W2059776711 hasConceptScore W2059776711C104293457 @default.
- W2059776711 hasConceptScore W2059776711C105795698 @default.
- W2059776711 hasConceptScore W2059776711C11413529 @default.
- W2059776711 hasConceptScore W2059776711C115961682 @default.
- W2059776711 hasConceptScore W2059776711C120665830 @default.
- W2059776711 hasConceptScore W2059776711C121332964 @default.
- W2059776711 hasConceptScore W2059776711C152877465 @default.
- W2059776711 hasConceptScore W2059776711C154945302 @default.
- W2059776711 hasConceptScore W2059776711C158622935 @default.
- W2059776711 hasConceptScore W2059776711C163716698 @default.
- W2059776711 hasConceptScore W2059776711C19609008 @default.
- W2059776711 hasConceptScore W2059776711C33923547 @default.
- W2059776711 hasConceptScore W2059776711C35772409 @default.
- W2059776711 hasConceptScore W2059776711C41008148 @default.
- W2059776711 hasConceptScore W2059776711C46889948 @default.
- W2059776711 hasConceptScore W2059776711C62520636 @default.
- W2059776711 hasConceptScore W2059776711C9417928 @default.
- W2059776711 hasConceptScore W2059776711C99498987 @default.
- W2059776711 hasLocation W20597767111 @default.
- W2059776711 hasOpenAccess W2059776711 @default.
- W2059776711 hasPrimaryLocation W20597767111 @default.
- W2059776711 hasRelatedWork W133807435 @default.
- W2059776711 hasRelatedWork W1562981358 @default.
- W2059776711 hasRelatedWork W1835144218 @default.
- W2059776711 hasRelatedWork W195658138 @default.
- W2059776711 hasRelatedWork W1988724154 @default.
- W2059776711 hasRelatedWork W2008575114 @default.
- W2059776711 hasRelatedWork W2014086062 @default.
- W2059776711 hasRelatedWork W2034639952 @default.
- W2059776711 hasRelatedWork W2065135230 @default.
- W2059776711 hasRelatedWork W2068927608 @default.
- W2059776711 hasRelatedWork W2075304368 @default.
- W2059776711 hasRelatedWork W2111090697 @default.
- W2059776711 hasRelatedWork W2129932269 @default.
- W2059776711 hasRelatedWork W2325174206 @default.
- W2059776711 hasRelatedWork W2524479326 @default.
- W2059776711 hasRelatedWork W2538443073 @default.
- W2059776711 hasRelatedWork W2767177026 @default.
- W2059776711 hasRelatedWork W2792865335 @default.
- W2059776711 hasRelatedWork W2946370031 @default.
- W2059776711 hasRelatedWork W345369334 @default.
- W2059776711 isParatext "false" @default.
- W2059776711 isRetracted "false" @default.
- W2059776711 magId "2059776711" @default.
- W2059776711 workType "article" @default.