Matches in SemOpenAlex for { <https://semopenalex.org/work/W2473008994> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W2473008994 abstract "Purpose:To evaluate an automated technique for measuring spatial resolution across a database of clinical CT exams.Methods:A fully automated algorithm was developed to extract a CT resolution index (RI) analogous to the modulation transfer function from clinical CT images by measuring the edge-spread function (ESF) across the patient's skin and converting the results into scalar values, frequency at 50% RI, f50. The program was previously validated against observer data. This algorithm was applied to a database of CT images from our hospital that were reconstructed with different reconstruction algorithms (filtered back-projection and iterative) and reconstruction kernels (soft and hard). The results were analyzed in terms of mean and variability within reconstruction methods and kernel aspects of the protocols.Results:The automated algorithm successfully measured the RI index from all of the clinical datasets examined. The measured f50 values increased with harder kernels for both FBP and iterative reconstruction. The mean f50 was 0.30 ± 0.02 mm-1 and 0.42 ± 0.03 mm-1 for images reconstructed with soft and hard kernels, respectively, using filtered back-projection. The corresponding values for iterative reconstructions were 0.34 ± 0.02 mm-1 and 0.39 ± 0.03 mm-1, respectively. Overall, there was more variability in the f50 measurements made on datasets reconstructed with a hard kernel. The differences were statistically significant (p<0.05).Conclusion:Clinically-informed, patient-specific spatial resolution can be measured from clinical datasets. The method is sufficiently sensitive to reflect changes in spatial resolution due to different reconstruction parameters. The method can be applied to automatically assess the spatial resolution of patient images and quantify dependencies that may not be captured in phantom data." @default.
- W2473008994 created "2016-07-22" @default.
- W2473008994 creator A5021555712 @default.
- W2473008994 creator A5038364835 @default.
- W2473008994 creator A5071052954 @default.
- W2473008994 date "2016-06-01" @default.
- W2473008994 modified "2023-09-27" @default.
- W2473008994 title "TH-CD-207B-02: An Automated Technique to Measure Spatial Resolution in Clinical CT Images: Application to Patient Data" @default.
- W2473008994 doi "https://doi.org/10.1118/1.4958208" @default.
- W2473008994 hasPublicationYear "2016" @default.
- W2473008994 type Work @default.
- W2473008994 sameAs 2473008994 @default.
- W2473008994 citedByCount "0" @default.
- W2473008994 crossrefType "journal-article" @default.
- W2473008994 hasAuthorship W2473008994A5021555712 @default.
- W2473008994 hasAuthorship W2473008994A5038364835 @default.
- W2473008994 hasAuthorship W2473008994A5071052954 @default.
- W2473008994 hasConcept C11413529 @default.
- W2473008994 hasConcept C114614502 @default.
- W2473008994 hasConcept C134306372 @default.
- W2473008994 hasConcept C141379421 @default.
- W2473008994 hasConcept C153180895 @default.
- W2473008994 hasConcept C154945302 @default.
- W2473008994 hasConcept C159694833 @default.
- W2473008994 hasConcept C175231954 @default.
- W2473008994 hasConcept C205372480 @default.
- W2473008994 hasConcept C2989005 @default.
- W2473008994 hasConcept C31601959 @default.
- W2473008994 hasConcept C33923547 @default.
- W2473008994 hasConcept C41008148 @default.
- W2473008994 hasConcept C57493831 @default.
- W2473008994 hasConcept C71924100 @default.
- W2473008994 hasConcept C74193536 @default.
- W2473008994 hasConceptScore W2473008994C11413529 @default.
- W2473008994 hasConceptScore W2473008994C114614502 @default.
- W2473008994 hasConceptScore W2473008994C134306372 @default.
- W2473008994 hasConceptScore W2473008994C141379421 @default.
- W2473008994 hasConceptScore W2473008994C153180895 @default.
- W2473008994 hasConceptScore W2473008994C154945302 @default.
- W2473008994 hasConceptScore W2473008994C159694833 @default.
- W2473008994 hasConceptScore W2473008994C175231954 @default.
- W2473008994 hasConceptScore W2473008994C205372480 @default.
- W2473008994 hasConceptScore W2473008994C2989005 @default.
- W2473008994 hasConceptScore W2473008994C31601959 @default.
- W2473008994 hasConceptScore W2473008994C33923547 @default.
- W2473008994 hasConceptScore W2473008994C41008148 @default.
- W2473008994 hasConceptScore W2473008994C57493831 @default.
- W2473008994 hasConceptScore W2473008994C71924100 @default.
- W2473008994 hasConceptScore W2473008994C74193536 @default.
- W2473008994 hasLocation W24730089941 @default.
- W2473008994 hasOpenAccess W2473008994 @default.
- W2473008994 hasPrimaryLocation W24730089941 @default.
- W2473008994 hasRelatedWork W171998481 @default.
- W2473008994 hasRelatedWork W1979889457 @default.
- W2473008994 hasRelatedWork W1994141795 @default.
- W2473008994 hasRelatedWork W2003767883 @default.
- W2473008994 hasRelatedWork W2009766183 @default.
- W2473008994 hasRelatedWork W2021061544 @default.
- W2473008994 hasRelatedWork W2040719240 @default.
- W2473008994 hasRelatedWork W2042547280 @default.
- W2473008994 hasRelatedWork W2044435041 @default.
- W2473008994 hasRelatedWork W2080394211 @default.
- W2473008994 hasRelatedWork W2508046624 @default.
- W2473008994 hasRelatedWork W2793894767 @default.
- W2473008994 hasRelatedWork W2895314407 @default.
- W2473008994 hasRelatedWork W2920132766 @default.
- W2473008994 hasRelatedWork W3004760824 @default.
- W2473008994 hasRelatedWork W3018309109 @default.
- W2473008994 hasRelatedWork W3092367503 @default.
- W2473008994 hasRelatedWork W3113446404 @default.
- W2473008994 hasRelatedWork W3194085382 @default.
- W2473008994 hasRelatedWork W3210190837 @default.
- W2473008994 isParatext "false" @default.
- W2473008994 isRetracted "false" @default.
- W2473008994 magId "2473008994" @default.
- W2473008994 workType "article" @default.