FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1940721824> ?p ?o ?g. }

• W1940721824 endingPage "5969" @default.
• W1940721824 startingPage "5961" @default.
• W1940721824 abstract "Integrated positron emission tomography/magnetic resonance (PET/MR) systems derive the PET attenuation correction (AC) from dedicated MR sequences. While MR-AC performs reasonably well in clinical patient imaging, it may fail for phantom-based quality control (QC). The authors assess the applicability of different protocols for PET QC in multicenter PET/MR imaging.The National Electrical Manufacturers Association NU 2 2007 image quality phantom was imaged on three combined PET/MR systems: a Philips Ingenuity TF PET/MR, a Siemens Biograph mMR, and a GE SIGNA PET/MR (prototype) system. The phantom was filled according to the EANM FDG-PET/CT guideline 1.0 and scanned for 5 min over 1 bed. Two MR-AC imaging protocols were tested: standard clinical procedures and a dedicated protocol for phantom tests. Depending on the system, the dedicated phantom protocol employs a two-class (water and air) segmentation of the MR data or a CT-based template. Differences in attenuation- and SUV recovery coefficients (RC) are reported. PET/CT-based simulations were performed to simulate the various artifacts seen in the AC maps (μ-map) and their impact on the accuracy of phantom-based QC.Clinical MR-AC protocols caused substantial errors and artifacts in the AC maps, resulting in underestimations of the reconstructed PET activity of up to 27%, depending on the PET/MR system. Using dedicated phantom MR-AC protocols, PET bias was reduced to -8%. Mean and max SUV RC met EARL multicenter PET performance specifications for most contrast objects, but only when using the dedicated phantom protocol. Simulations confirmed the bias in experimental data to be caused by incorrect AC maps resulting from the use of clinical MR-AC protocols.Phantom-based quality control of PET/MR systems in a multicenter, multivendor setting may be performed with sufficient accuracy, but only when dedicated phantom acquisition and processing protocols are used for attenuation correction." @default.
• W1940721824 created "2016-06-24" @default.
• W1940721824 creator A5023581145 @default.
• W1940721824 creator A5047398592 @default.
• W1940721824 creator A5058402175 @default.
• W1940721824 creator A5060239102 @default.
• W1940721824 creator A5062344635 @default.
• W1940721824 creator A5062723738 @default.
• W1940721824 creator A5080659629 @default.
• W1940721824 date "2015-09-22" @default.
• W1940721824 modified "2023-10-12" @default.
• W1940721824 title "Quality control for quantitative multicenter whole-body PET/MR studies: A NEMA image quality phantom study with three current PET/MR systems" @default.
• W1940721824 cites W1589035167 @default.
• W1940721824 cites W1966456712 @default.
• W1940721824 cites W1997005521 @default.
• W1940721824 cites W2006162458 @default.
• W1940721824 cites W2015897296 @default.
• W1940721824 cites W2034675639 @default.
• W1940721824 cites W2035299311 @default.
• W1940721824 cites W2040139677 @default.
• W1940721824 cites W2061806683 @default.
• W1940721824 cites W2067148907 @default.
• W1940721824 cites W2110338249 @default.
• W1940721824 cites W2132612350 @default.
• W1940721824 cites W2140479375 @default.
• W1940721824 cites W2145537745 @default.
• W1940721824 cites W2150822300 @default.
• W1940721824 cites W2154346707 @default.
• W1940721824 cites W2163030916 @default.
• W1940721824 cites W2167157872 @default.
• W1940721824 cites W2294938186 @default.
• W1940721824 cites W2313407248 @default.
• W1940721824 doi "https://doi.org/10.1118/1.4930962" @default.
• W1940721824 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26429271" @default.
• W1940721824 hasPublicationYear "2015" @default.
• W1940721824 type Work @default.
• W1940721824 sameAs 1940721824 @default.
• W1940721824 citedByCount "51" @default.
• W1940721824 countsByYear W19407218242015 @default.
• W1940721824 countsByYear W19407218242016 @default.
• W1940721824 countsByYear W19407218242017 @default.
• W1940721824 countsByYear W19407218242018 @default.
• W1940721824 countsByYear W19407218242019 @default.
• W1940721824 countsByYear W19407218242020 @default.
• W1940721824 countsByYear W19407218242021 @default.
• W1940721824 countsByYear W19407218242022 @default.
• W1940721824 countsByYear W19407218242023 @default.
• W1940721824 crossrefType "journal-article" @default.
• W1940721824 hasAuthorship W1940721824A5023581145 @default.
• W1940721824 hasAuthorship W1940721824A5047398592 @default.
• W1940721824 hasAuthorship W1940721824A5058402175 @default.
• W1940721824 hasAuthorship W1940721824A5060239102 @default.
• W1940721824 hasAuthorship W1940721824A5062344635 @default.
• W1940721824 hasAuthorship W1940721824A5062723738 @default.
• W1940721824 hasAuthorship W1940721824A5080659629 @default.
• W1940721824 hasConcept C104293457 @default.
• W1940721824 hasConcept C115961682 @default.
• W1940721824 hasConcept C123688308 @default.
• W1940721824 hasConcept C126838900 @default.
• W1940721824 hasConcept C127077266 @default.
• W1940721824 hasConcept C143409427 @default.
• W1940721824 hasConcept C154945302 @default.
• W1940721824 hasConcept C19527891 @default.
• W1940721824 hasConcept C2775842073 @default.
• W1940721824 hasConcept C2989005 @default.
• W1940721824 hasConcept C41008148 @default.
• W1940721824 hasConcept C55020928 @default.
• W1940721824 hasConcept C71924100 @default.
• W1940721824 hasConceptScore W1940721824C104293457 @default.
• W1940721824 hasConceptScore W1940721824C115961682 @default.
• W1940721824 hasConceptScore W1940721824C123688308 @default.
• W1940721824 hasConceptScore W1940721824C126838900 @default.
• W1940721824 hasConceptScore W1940721824C127077266 @default.
• W1940721824 hasConceptScore W1940721824C143409427 @default.
• W1940721824 hasConceptScore W1940721824C154945302 @default.
• W1940721824 hasConceptScore W1940721824C19527891 @default.
• W1940721824 hasConceptScore W1940721824C2775842073 @default.
• W1940721824 hasConceptScore W1940721824C2989005 @default.
• W1940721824 hasConceptScore W1940721824C41008148 @default.
• W1940721824 hasConceptScore W1940721824C55020928 @default.
• W1940721824 hasConceptScore W1940721824C71924100 @default.
• W1940721824 hasIssue "10" @default.
• W1940721824 hasLocation W19407218241 @default.
• W1940721824 hasLocation W19407218242 @default.
• W1940721824 hasOpenAccess W1940721824 @default.
• W1940721824 hasPrimaryLocation W19407218241 @default.
• W1940721824 hasRelatedWork W2015071354 @default.
• W1940721824 hasRelatedWork W2047952491 @default.
• W1940721824 hasRelatedWork W2062195871 @default.
• W1940721824 hasRelatedWork W2073031339 @default.
• W1940721824 hasRelatedWork W2144778520 @default.
• W1940721824 hasRelatedWork W2225056549 @default.
• W1940721824 hasRelatedWork W2365285804 @default.
• W1940721824 hasRelatedWork W2604710047 @default.
• W1940721824 hasRelatedWork W2620563713 @default.
• W1940721824 hasRelatedWork W2620851791 @default.
• W1940721824 hasVolume "42" @default.
• W1940721824 isParatext "false" @default.

• next