Matches in SemOpenAlex for { <https://semopenalex.org/work/W2016965677> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W2016965677 abstract "To study the effects of overlapping anatomy on microcalcification detection at various incident exposure levels. Images of an anthropomorphic breast phantom (RMI 169) overlapping with simulated microcalcifications ranging from 150 to 212 μm in size placed in two breast density regions, fatty and heterogeneously dense, were acquired with an a-Si/a-Se flat panel based digital mammography system (Selenia) operated with Mo-Mo target/filter combination at 28 kVp. The mammograms were exposed with 20, 30, 40, 60, 80, 120, 160, 240 and 325 mAs for varying the exposure level. A 4-AFC study was performed for evaluation of the detection performance. Four 400×400-pixel images were displayed as 2×2 array on a LCD flat panel based review workstation. One of the four images contained a cluster of five microcalcifications and was randomly placed in one of the four quadrants. A physicist was asked to select the image containing the microcalcifications and to report the number of visible microcalcifications. The fraction of correct responses was computed with two different criteria: (1) the selected images contained one or more microcalcifications, and (2) the selected images contained 4 or 5 visible microcalcifications. The statistical significance of the differences in fractions for different exposure levels and regions was evaluated. The results showed that, if visibility of one or more microcalcifications is required, the fractions of correct responses were 1 for all size groups and most exposure levels in both fatty and heterogeneously dense regions. If a visibility of 80% or more of the microcalcifications was required, the fractions of correct responses significantly decreased in both regions. The results indicated that microcalcification detection in the fatty region appeared to be mainly limited by the quantum noise, and that in the heterogeneously dense region may be limited by both the anatomic noise and the quantum noise." @default.
- W2016965677 created "2016-06-24" @default.
- W2016965677 creator A5006696681 @default.
- W2016965677 creator A5013252766 @default.
- W2016965677 creator A5032172525 @default.
- W2016965677 creator A5035160285 @default.
- W2016965677 creator A5041078152 @default.
- W2016965677 creator A5047187017 @default.
- W2016965677 creator A5068961920 @default.
- W2016965677 creator A5080464782 @default.
- W2016965677 creator A5080817268 @default.
- W2016965677 creator A5081265349 @default.
- W2016965677 creator A5082458012 @default.
- W2016965677 creator A5083868441 @default.
- W2016965677 creator A5086990455 @default.
- W2016965677 creator A5039186914 @default.
- W2016965677 date "2010-03-04" @default.
- W2016965677 modified "2023-09-25" @default.
- W2016965677 title "Detection of simulated microcalcifications in digital mammography: effects of quantum and anatomic noises: preliminary study" @default.
- W2016965677 doi "https://doi.org/10.1117/12.844426" @default.
- W2016965677 hasPublicationYear "2010" @default.
- W2016965677 type Work @default.
- W2016965677 sameAs 2016965677 @default.
- W2016965677 citedByCount "1" @default.
- W2016965677 countsByYear W20169656772018 @default.
- W2016965677 crossrefType "proceedings-article" @default.
- W2016965677 hasAuthorship W2016965677A5006696681 @default.
- W2016965677 hasAuthorship W2016965677A5013252766 @default.
- W2016965677 hasAuthorship W2016965677A5032172525 @default.
- W2016965677 hasAuthorship W2016965677A5035160285 @default.
- W2016965677 hasAuthorship W2016965677A5039186914 @default.
- W2016965677 hasAuthorship W2016965677A5041078152 @default.
- W2016965677 hasAuthorship W2016965677A5047187017 @default.
- W2016965677 hasAuthorship W2016965677A5068961920 @default.
- W2016965677 hasAuthorship W2016965677A5080464782 @default.
- W2016965677 hasAuthorship W2016965677A5080817268 @default.
- W2016965677 hasAuthorship W2016965677A5081265349 @default.
- W2016965677 hasAuthorship W2016965677A5082458012 @default.
- W2016965677 hasAuthorship W2016965677A5083868441 @default.
- W2016965677 hasAuthorship W2016965677A5086990455 @default.
- W2016965677 hasConcept C104293457 @default.
- W2016965677 hasConcept C120665830 @default.
- W2016965677 hasConcept C121332964 @default.
- W2016965677 hasConcept C121608353 @default.
- W2016965677 hasConcept C123403432 @default.
- W2016965677 hasConcept C126322002 @default.
- W2016965677 hasConcept C154945302 @default.
- W2016965677 hasConcept C160633673 @default.
- W2016965677 hasConcept C173163844 @default.
- W2016965677 hasConcept C2780472235 @default.
- W2016965677 hasConcept C2781129008 @default.
- W2016965677 hasConcept C2781281974 @default.
- W2016965677 hasConcept C2989005 @default.
- W2016965677 hasConcept C41008148 @default.
- W2016965677 hasConcept C530470458 @default.
- W2016965677 hasConcept C71924100 @default.
- W2016965677 hasConceptScore W2016965677C104293457 @default.
- W2016965677 hasConceptScore W2016965677C120665830 @default.
- W2016965677 hasConceptScore W2016965677C121332964 @default.
- W2016965677 hasConceptScore W2016965677C121608353 @default.
- W2016965677 hasConceptScore W2016965677C123403432 @default.
- W2016965677 hasConceptScore W2016965677C126322002 @default.
- W2016965677 hasConceptScore W2016965677C154945302 @default.
- W2016965677 hasConceptScore W2016965677C160633673 @default.
- W2016965677 hasConceptScore W2016965677C173163844 @default.
- W2016965677 hasConceptScore W2016965677C2780472235 @default.
- W2016965677 hasConceptScore W2016965677C2781129008 @default.
- W2016965677 hasConceptScore W2016965677C2781281974 @default.
- W2016965677 hasConceptScore W2016965677C2989005 @default.
- W2016965677 hasConceptScore W2016965677C41008148 @default.
- W2016965677 hasConceptScore W2016965677C530470458 @default.
- W2016965677 hasConceptScore W2016965677C71924100 @default.
- W2016965677 hasLocation W20169656771 @default.
- W2016965677 hasOpenAccess W2016965677 @default.
- W2016965677 hasPrimaryLocation W20169656771 @default.
- W2016965677 hasRelatedWork W1968245523 @default.
- W2016965677 hasRelatedWork W1989380545 @default.
- W2016965677 hasRelatedWork W2016965677 @default.
- W2016965677 hasRelatedWork W2045192796 @default.
- W2016965677 hasRelatedWork W2056791574 @default.
- W2016965677 hasRelatedWork W2087367853 @default.
- W2016965677 hasRelatedWork W2159680502 @default.
- W2016965677 hasRelatedWork W2842041207 @default.
- W2016965677 hasRelatedWork W3025352395 @default.
- W2016965677 hasRelatedWork W3150799132 @default.
- W2016965677 isParatext "false" @default.
- W2016965677 isRetracted "false" @default.
- W2016965677 magId "2016965677" @default.
- W2016965677 workType "article" @default.