Matches in SemOpenAlex for { <https://semopenalex.org/work/W2134951181> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2134951181 endingPage "433" @default.
- W2134951181 startingPage "423" @default.
- W2134951181 abstract "Spatiotemporal reconstruction of cardiac-gated SPECT images permits us to obtain valuable information related to cardiac function. However, the task of reconstructing this four-dimensional (4-D) data set is computation intensive. Typically, these studies are reconstructed frame-by-frame: a nonoptimal approach because temporal correlations in the signal are not accounted for. In this work, we show that the compression and signal decorrelation properties of the Karhunen-Loève (KL) transform may be used to greatly simplify the spatiotemporal reconstruction problem. The gated projections are first KL transformed in the temporal direction. This results in a sequence of KL-transformed projection images for which the signal components are uncorrelated along the time axis. As a result, the 4-D reconstruction task is simplified to a series of three-dimensional (3-D) reconstructions in the KL domain. The reconstructed KL components are subsequently inverse KL transformed to obtain the entire spatiotemporal reconstruction set. Our simulation and clinical results indicate that KL processing provides image sequences that are less noisy than are conventional frame-by-frame reconstructions. Additionally, by discarding high-order KL components that are dominated by noise, we can achieve savings in computation time because fewer reconstructions are needed in comparison to conventional frame-by-frame reconstructions." @default.
- W2134951181 created "2016-06-24" @default.
- W2134951181 creator A5003106189 @default.
- W2134951181 creator A5013064030 @default.
- W2134951181 creator A5043182454 @default.
- W2134951181 creator A5075447974 @default.
- W2134951181 creator A5081376258 @default.
- W2134951181 creator A5088260644 @default.
- W2134951181 date "2000-05-01" @default.
- W2134951181 modified "2023-10-07" @default.
- W2134951181 title "Improved image quality and computation reduction in 4-D reconstruction of cardiac-gated SPECT images" @default.
- W2134951181 cites W1919722873 @default.
- W2134951181 cites W1977595064 @default.
- W2134951181 cites W1978043757 @default.
- W2134951181 cites W1992065047 @default.
- W2134951181 cites W2044618122 @default.
- W2134951181 cites W2060189352 @default.
- W2134951181 cites W2095354186 @default.
- W2134951181 cites W2109115094 @default.
- W2134951181 cites W2133097426 @default.
- W2134951181 cites W2135054999 @default.
- W2134951181 cites W2144933051 @default.
- W2134951181 cites W2165830279 @default.
- W2134951181 cites W2171396536 @default.
- W2134951181 cites W50973899 @default.
- W2134951181 doi "https://doi.org/10.1109/42.870253" @default.
- W2134951181 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/11021686" @default.
- W2134951181 hasPublicationYear "2000" @default.
- W2134951181 type Work @default.
- W2134951181 sameAs 2134951181 @default.
- W2134951181 citedByCount "42" @default.
- W2134951181 countsByYear W21349511812012 @default.
- W2134951181 countsByYear W21349511812013 @default.
- W2134951181 countsByYear W21349511812014 @default.
- W2134951181 countsByYear W21349511812015 @default.
- W2134951181 countsByYear W21349511812019 @default.
- W2134951181 crossrefType "journal-article" @default.
- W2134951181 hasAuthorship W2134951181A5003106189 @default.
- W2134951181 hasAuthorship W2134951181A5013064030 @default.
- W2134951181 hasAuthorship W2134951181A5043182454 @default.
- W2134951181 hasAuthorship W2134951181A5075447974 @default.
- W2134951181 hasAuthorship W2134951181A5081376258 @default.
- W2134951181 hasAuthorship W2134951181A5088260644 @default.
- W2134951181 hasConcept C104267543 @default.
- W2134951181 hasConcept C11413529 @default.
- W2134951181 hasConcept C115961682 @default.
- W2134951181 hasConcept C126042441 @default.
- W2134951181 hasConcept C141379421 @default.
- W2134951181 hasConcept C153180895 @default.
- W2134951181 hasConcept C154945302 @default.
- W2134951181 hasConcept C177860922 @default.
- W2134951181 hasConcept C31972630 @default.
- W2134951181 hasConcept C33923547 @default.
- W2134951181 hasConcept C41008148 @default.
- W2134951181 hasConcept C45374587 @default.
- W2134951181 hasConcept C55020928 @default.
- W2134951181 hasConcept C554190296 @default.
- W2134951181 hasConcept C57493831 @default.
- W2134951181 hasConcept C70958404 @default.
- W2134951181 hasConcept C76155785 @default.
- W2134951181 hasConceptScore W2134951181C104267543 @default.
- W2134951181 hasConceptScore W2134951181C11413529 @default.
- W2134951181 hasConceptScore W2134951181C115961682 @default.
- W2134951181 hasConceptScore W2134951181C126042441 @default.
- W2134951181 hasConceptScore W2134951181C141379421 @default.
- W2134951181 hasConceptScore W2134951181C153180895 @default.
- W2134951181 hasConceptScore W2134951181C154945302 @default.
- W2134951181 hasConceptScore W2134951181C177860922 @default.
- W2134951181 hasConceptScore W2134951181C31972630 @default.
- W2134951181 hasConceptScore W2134951181C33923547 @default.
- W2134951181 hasConceptScore W2134951181C41008148 @default.
- W2134951181 hasConceptScore W2134951181C45374587 @default.
- W2134951181 hasConceptScore W2134951181C55020928 @default.
- W2134951181 hasConceptScore W2134951181C554190296 @default.
- W2134951181 hasConceptScore W2134951181C57493831 @default.
- W2134951181 hasConceptScore W2134951181C70958404 @default.
- W2134951181 hasConceptScore W2134951181C76155785 @default.
- W2134951181 hasIssue "5" @default.
- W2134951181 hasLocation W21349511811 @default.
- W2134951181 hasLocation W21349511812 @default.
- W2134951181 hasOpenAccess W2134951181 @default.
- W2134951181 hasPrimaryLocation W21349511811 @default.
- W2134951181 hasRelatedWork W1967456564 @default.
- W2134951181 hasRelatedWork W2018749733 @default.
- W2134951181 hasRelatedWork W2074869029 @default.
- W2134951181 hasRelatedWork W2080322084 @default.
- W2134951181 hasRelatedWork W2383285980 @default.
- W2134951181 hasRelatedWork W2611645609 @default.
- W2134951181 hasRelatedWork W2806096627 @default.
- W2134951181 hasRelatedWork W3217021205 @default.
- W2134951181 hasRelatedWork W4225259759 @default.
- W2134951181 hasRelatedWork W4312095940 @default.
- W2134951181 hasVolume "19" @default.
- W2134951181 isParatext "false" @default.
- W2134951181 isRetracted "false" @default.
- W2134951181 magId "2134951181" @default.
- W2134951181 workType "article" @default.