Matches in SemOpenAlex for { <https://semopenalex.org/work/W2088392893> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2088392893 endingPage "1142" @default.
- W2088392893 startingPage "1136" @default.
- W2088392893 abstract "The goal of this study is to evaluate the quantitative accuracy of measuring in vivo tracer concentrations using multiplexed multi-pinhole microSPECT with CT-based attenuation correction (AC) and simple methods for scatter compensation. Phantom and in vivo rat cardiac images were acquired and reconstructed with no photon AC, with AC only, with attenuation and dual-energy window scatter correction, and using a reduced attenuation coefficient to compensate for scatter. Absolute calibration was also acquired using small sources to minimize self-attenuation and scatter. The phantom tracer concentrations measured with SPECT were compared to dose calibrator measurements. The rats were sacrificed and the cardiac activity measured in vivo was compared to well counter measurements of cardiac activity. With no correction, the tracer concentrations measured in phantoms was as much as 30% below the true value for the largest phantom (52 mm diameter). AC improved the accuracy of quantification, but overestimated activity concentrations by up to 5% for the larger phantoms. With DEW scatter correction, activity concentration measured with SPECT agrees with the dose calibrator measurements to within -2 ±2% and with a reduced attenuation coefficient, the agreement was better than -1 ±1%. In rats injected with <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>99m</sup> Tc-tetrofosmin, SPECT measurements of total cardiac activity were 24±2% below well counter measurements with no corrections, 5±3% above well counter measurements with only attenuation correction, 3±3% below with DEW scatter correction, and 1±3% below with reduced attenuation correction." @default.
- W2088392893 created "2016-06-24" @default.
- W2088392893 creator A5004927831 @default.
- W2088392893 creator A5039992836 @default.
- W2088392893 date "2014-06-01" @default.
- W2088392893 modified "2023-09-24" @default.
- W2088392893 title "Quantitative Measurement of In Vivo Tracer Concentration in Rats with Multiplexed Multi-Pinhole SPECT" @default.
- W2088392893 cites W1484402447 @default.
- W2088392893 cites W1659720364 @default.
- W2088392893 cites W1829489120 @default.
- W2088392893 cites W1969031584 @default.
- W2088392893 cites W1974187190 @default.
- W2088392893 cites W1979383935 @default.
- W2088392893 cites W1986544399 @default.
- W2088392893 cites W1990002809 @default.
- W2088392893 cites W2020291647 @default.
- W2088392893 cites W2027379560 @default.
- W2088392893 cites W2033932611 @default.
- W2088392893 cites W2034006273 @default.
- W2088392893 cites W2049427713 @default.
- W2088392893 cites W2060414276 @default.
- W2088392893 cites W2064015384 @default.
- W2088392893 cites W2084523554 @default.
- W2088392893 cites W2085176654 @default.
- W2088392893 cites W2085480504 @default.
- W2088392893 cites W2086685554 @default.
- W2088392893 cites W2089507107 @default.
- W2088392893 cites W2108145991 @default.
- W2088392893 cites W2112136242 @default.
- W2088392893 cites W2118147340 @default.
- W2088392893 cites W2118530654 @default.
- W2088392893 cites W2133447151 @default.
- W2088392893 cites W2149327167 @default.
- W2088392893 cites W2152945270 @default.
- W2088392893 cites W2156030504 @default.
- W2088392893 cites W2157812230 @default.
- W2088392893 cites W2160203786 @default.
- W2088392893 cites W2170974882 @default.
- W2088392893 cites W2275739917 @default.
- W2088392893 doi "https://doi.org/10.1109/tns.2014.2318235" @default.
- W2088392893 hasPublicationYear "2014" @default.
- W2088392893 type Work @default.
- W2088392893 sameAs 2088392893 @default.
- W2088392893 citedByCount "4" @default.
- W2088392893 countsByYear W20883928932015 @default.
- W2088392893 countsByYear W20883928932016 @default.
- W2088392893 countsByYear W20883928932019 @default.
- W2088392893 countsByYear W20883928932020 @default.
- W2088392893 crossrefType "journal-article" @default.
- W2088392893 hasAuthorship W2088392893A5004927831 @default.
- W2088392893 hasAuthorship W2088392893A5039992836 @default.
- W2088392893 hasConcept C104293457 @default.
- W2088392893 hasConcept C120665830 @default.
- W2088392893 hasConcept C121332964 @default.
- W2088392893 hasConcept C123688308 @default.
- W2088392893 hasConcept C159774933 @default.
- W2088392893 hasConcept C165838908 @default.
- W2088392893 hasConcept C184652730 @default.
- W2088392893 hasConcept C185544564 @default.
- W2088392893 hasConcept C192562407 @default.
- W2088392893 hasConcept C2778863792 @default.
- W2088392893 hasConcept C2989005 @default.
- W2088392893 hasConcept C62520636 @default.
- W2088392893 hasConcept C71924100 @default.
- W2088392893 hasConceptScore W2088392893C104293457 @default.
- W2088392893 hasConceptScore W2088392893C120665830 @default.
- W2088392893 hasConceptScore W2088392893C121332964 @default.
- W2088392893 hasConceptScore W2088392893C123688308 @default.
- W2088392893 hasConceptScore W2088392893C159774933 @default.
- W2088392893 hasConceptScore W2088392893C165838908 @default.
- W2088392893 hasConceptScore W2088392893C184652730 @default.
- W2088392893 hasConceptScore W2088392893C185544564 @default.
- W2088392893 hasConceptScore W2088392893C192562407 @default.
- W2088392893 hasConceptScore W2088392893C2778863792 @default.
- W2088392893 hasConceptScore W2088392893C2989005 @default.
- W2088392893 hasConceptScore W2088392893C62520636 @default.
- W2088392893 hasConceptScore W2088392893C71924100 @default.
- W2088392893 hasFunder F4320334593 @default.
- W2088392893 hasIssue "3" @default.
- W2088392893 hasLocation W20883928931 @default.
- W2088392893 hasOpenAccess W2088392893 @default.
- W2088392893 hasPrimaryLocation W20883928931 @default.
- W2088392893 hasRelatedWork W1970242536 @default.
- W2088392893 hasRelatedWork W2029167562 @default.
- W2088392893 hasRelatedWork W2093750196 @default.
- W2088392893 hasRelatedWork W2154522225 @default.
- W2088392893 hasRelatedWork W2272124829 @default.
- W2088392893 hasRelatedWork W2368729919 @default.
- W2088392893 hasRelatedWork W2385946940 @default.
- W2088392893 hasRelatedWork W2407861221 @default.
- W2088392893 hasRelatedWork W3129265855 @default.
- W2088392893 hasRelatedWork W4297347835 @default.
- W2088392893 hasVolume "61" @default.
- W2088392893 isParatext "false" @default.
- W2088392893 isRetracted "false" @default.
- W2088392893 magId "2088392893" @default.
- W2088392893 workType "article" @default.