Matches in SemOpenAlex for { <https://semopenalex.org/work/W4220796611> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W4220796611 endingPage "3032" @default.
- W4220796611 startingPage "3023" @default.
- W4220796611 abstract "The DMI PET/CT is a modular silicon photomultiplier-based scanner with an axial field-of-view (FOV) between 15 and 25 cm depending on ring configuration (3, 4, or 5 rings). A new generation of the system includes a reengineered detector module, featuring improved electronics and an additional 6th ring, extending the axial FOV to 30 cm. We report on the performance evaluation of the 6-ring upgraded Generation 2 (Gen2) system while values are also reported for the 5-ring configuration of the very same system prior to the upgrade.PET performance was evaluated using the NEMA NU 2-2018 standard for spatial resolution, sensitivity, image quality, count rate performance, timing resolution, and image co-registration accuracy. Patient images were used to assess image quality.The average system sensitivity was measured at 32.76 cps/kBq (~ 47% increase to 5 rings at 22.29 cps/kBq) while noise equivalent count rate peaked at 434.3 kcps corresponding to 23.6 kBq/mL (~ 60% increase to Generation 1 (Gen1) and 39% to Gen2 5 rings). Contrast recovery ranged between 54.5 and 85.8% similar to 5 rings, while the 6 rings provided lower background variability (2.3-8.5% for 5 rings vs 1.9-6.8% for 6 rings) and lower lung error (4.0% for the 5 rings and 3.16% for the 6 rings). Transverse/axial full width at half-maximum (FWHM) at 1 cm (3.79/4.26 mm) and 10 cm (4.29/4.55 mm), scatter fraction (40.2%), energy resolution (9.63%), and time-of-flight (TOF) resolution (389.6 ps at 0 kBq/mL) were in line to previously reported values measured across different system configurations. Improved patient image quality is obtained with the 6 rings compared to the 5 rings, while image quality is retained even at reduced scan times, enabling WB dynamic acquisitions.The higher sensitivity of the 6-ring DMI compared to the 5-ring configuration may lead to improved image quality of clinical images at reduced scan time. Additionally, it could equally be used to allow improved temporal sampling and/or reduced overall scan time in dynamic acquisitions. Conversely, temporal sampling and scan time could be traded per application to further drive injected dose at lower levels." @default.
- W4220796611 created "2022-04-03" @default.
- W4220796611 creator A5036774533 @default.
- W4220796611 creator A5045688766 @default.
- W4220796611 creator A5046518576 @default.
- W4220796611 creator A5051162619 @default.
- W4220796611 creator A5075030656 @default.
- W4220796611 creator A5087007972 @default.
- W4220796611 date "2022-03-14" @default.
- W4220796611 modified "2023-10-18" @default.
- W4220796611 title "NEMA NU 2–2018 performance evaluation of a new generation 30-cm axial field-of-view Discovery MI PET/CT" @default.
- W4220796611 cites W2093630543 @default.
- W4220796611 cites W2609484922 @default.
- W4220796611 cites W2622852840 @default.
- W4220796611 cites W2730557609 @default.
- W4220796611 cites W2765283475 @default.
- W4220796611 cites W2909887812 @default.
- W4220796611 cites W2944041008 @default.
- W4220796611 cites W2947137705 @default.
- W4220796611 doi "https://doi.org/10.1007/s00259-022-05751-7" @default.
- W4220796611 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35284970" @default.
- W4220796611 hasPublicationYear "2022" @default.
- W4220796611 type Work @default.
- W4220796611 citedByCount "3" @default.
- W4220796611 countsByYear W42207966112022 @default.
- W4220796611 countsByYear W42207966112023 @default.
- W4220796611 crossrefType "journal-article" @default.
- W4220796611 hasAuthorship W4220796611A5036774533 @default.
- W4220796611 hasAuthorship W4220796611A5045688766 @default.
- W4220796611 hasAuthorship W4220796611A5046518576 @default.
- W4220796611 hasAuthorship W4220796611A5051162619 @default.
- W4220796611 hasAuthorship W4220796611A5075030656 @default.
- W4220796611 hasAuthorship W4220796611A5087007972 @default.
- W4220796611 hasBestOaLocation W42207966111 @default.
- W4220796611 hasConcept C104335537 @default.
- W4220796611 hasConcept C108649604 @default.
- W4220796611 hasConcept C115961682 @default.
- W4220796611 hasConcept C120665830 @default.
- W4220796611 hasConcept C121332964 @default.
- W4220796611 hasConcept C138268822 @default.
- W4220796611 hasConcept C150627866 @default.
- W4220796611 hasConcept C154945302 @default.
- W4220796611 hasConcept C161694136 @default.
- W4220796611 hasConcept C192562407 @default.
- W4220796611 hasConcept C205372480 @default.
- W4220796611 hasConcept C2779751349 @default.
- W4220796611 hasConcept C2989005 @default.
- W4220796611 hasConcept C41008148 @default.
- W4220796611 hasConcept C55020928 @default.
- W4220796611 hasConcept C71924100 @default.
- W4220796611 hasConcept C94915269 @default.
- W4220796611 hasConceptScore W4220796611C104335537 @default.
- W4220796611 hasConceptScore W4220796611C108649604 @default.
- W4220796611 hasConceptScore W4220796611C115961682 @default.
- W4220796611 hasConceptScore W4220796611C120665830 @default.
- W4220796611 hasConceptScore W4220796611C121332964 @default.
- W4220796611 hasConceptScore W4220796611C138268822 @default.
- W4220796611 hasConceptScore W4220796611C150627866 @default.
- W4220796611 hasConceptScore W4220796611C154945302 @default.
- W4220796611 hasConceptScore W4220796611C161694136 @default.
- W4220796611 hasConceptScore W4220796611C192562407 @default.
- W4220796611 hasConceptScore W4220796611C205372480 @default.
- W4220796611 hasConceptScore W4220796611C2779751349 @default.
- W4220796611 hasConceptScore W4220796611C2989005 @default.
- W4220796611 hasConceptScore W4220796611C41008148 @default.
- W4220796611 hasConceptScore W4220796611C55020928 @default.
- W4220796611 hasConceptScore W4220796611C71924100 @default.
- W4220796611 hasConceptScore W4220796611C94915269 @default.
- W4220796611 hasIssue "9" @default.
- W4220796611 hasLocation W42207966111 @default.
- W4220796611 hasLocation W42207966112 @default.
- W4220796611 hasLocation W42207966113 @default.
- W4220796611 hasLocation W42207966114 @default.
- W4220796611 hasLocation W42207966115 @default.
- W4220796611 hasOpenAccess W4220796611 @default.
- W4220796611 hasPrimaryLocation W42207966111 @default.
- W4220796611 hasRelatedWork W1998282870 @default.
- W4220796611 hasRelatedWork W2043800035 @default.
- W4220796611 hasRelatedWork W2124087039 @default.
- W4220796611 hasRelatedWork W2131575646 @default.
- W4220796611 hasRelatedWork W2276841944 @default.
- W4220796611 hasRelatedWork W2548878635 @default.
- W4220796611 hasRelatedWork W279549319 @default.
- W4220796611 hasRelatedWork W2971294649 @default.
- W4220796611 hasRelatedWork W3035793803 @default.
- W4220796611 hasRelatedWork W3195708261 @default.
- W4220796611 hasVolume "49" @default.
- W4220796611 isParatext "false" @default.
- W4220796611 isRetracted "false" @default.
- W4220796611 workType "article" @default.