dc.contributor.author | Saraste Antti | |
dc.contributor.author | Klén Riku | |
dc.contributor.author | Teuho Jarmo | |
dc.contributor.author | Teräs Mika | |
dc.contributor.author | Siekkinen Reetta | |
dc.contributor.author | Lehtonen Eero | |
dc.contributor.author | Schultz Jussi | |
dc.contributor.author | Jafari Tadi Mojtaba | |
dc.date.accessioned | 2022-10-28T13:08:28Z | |
dc.date.available | 2022-10-28T13:08:28Z | |
dc.identifier.uri | https://www.utupub.fi/handle/10024/163080 | |
dc.description.abstract | <p>Background.</p><p>Dual-gating reduces respiratory and cardiac motion effects but increases noise. With motion correction, motion is minimized and image quality preserved. We applied motion correction to create end-diastolic respiratory motion corrected images from dual-gated images.</p><p>Methods.</p><p>[F-18]-fluorodeoxyglucose ([F-18]-FDG) PET images of 13 subjects were reconstructed with 4 methods: non-gated, dual-gated, motion corrected, and motion corrected with 4D-CT (MoCo-4D). Image quality was evaluated using standardized uptake values, contrast ratio, signal-to-noise ratio, coefficient of variation, and contrast-to-noise ratio. Motion minimization was evaluated using myocardial wall thickness.</p><p>Results.</p><p>MoCo-4D showed improvement for contrast ratio (2.83 vs 2.76), signal-to-noise ratio (27.5 vs 20.3) and contrast-to-noise ratio (14.5 vs 11.1) compared to dual-gating. The uptake difference between MoCo-4D and non-gated images was non-significant (P > .05) for the myocardium (2.06 vs 2.15 g/mL), but significant (P < .05) for the blood pool (.80 vs .86 g/mL). Non-gated images had the lowest coefficient of variation (27.3%), with significant increase for all other methods (31.6-32.5%). MoCo-4D showed smallest myocardial wall thickness (16.6 mm) with significant decrease compared to non-gated images (20.9 mm).</p><p>Conclusions.</p><p>End-diastolic respiratory motion correction and 4D-CT resulted in improved motion minimization and image quality over standard dual-gating.</p> | |
dc.language.iso | en | |
dc.publisher | Springer | |
dc.title | Effect of respiratory motion correction and CT-based attenuation correction on dual-gated cardiac PET image quality and quantification | |
dc.identifier.url | https://link.springer.com/article/10.1007/s12350-021-02769-6 | |
dc.identifier.urn | URN:NBN:fi-fe2021093048586 | |
dc.contributor.organization | fi=biolääketieteen laitos, yhteiset|en=Institute of Biomedicine| | |
dc.contributor.organization | fi=terveysteknologia|en=Terveysteknologia| | |
dc.contributor.organization | fi=kliininen fysiologia ja isotooppilääketiede|en=Clinical Physiology and Nuclear Medicine| | |
dc.contributor.organization | fi=sisätautioppi|en=Internal Medicine| | |
dc.contributor.organization | fi=PET perustoiminta|en=PET Basic Operations| | |
dc.contributor.organization | fi=tyks, vsshp|en=tyks, vsshp| | |
dc.contributor.organization-code | 2607322 | |
dc.contributor.organization-code | 2607100 | |
dc.contributor.organization-code | 2609810 | |
dc.contributor.organization-code | 2607318 | |
dc.contributor.organization-code | 2610303 | |
dc.converis.publication-id | 67224956 | |
dc.converis.url | https://research.utu.fi/converis/portal/Publication/67224956 | |
dc.identifier.eissn | 1532-6551 | |
dc.identifier.jour-issn | 1071-3581 | |
dc.okm.affiliatedauthor | Lehtonen, Eero | |
dc.okm.affiliatedauthor | Saraste, Antti | |
dc.okm.affiliatedauthor | Jafari Tadi, Mojtaba | |
dc.okm.affiliatedauthor | Klén, Riku | |
dc.okm.affiliatedauthor | Schultz, Jussi | |
dc.okm.affiliatedauthor | Teräs, Mika | |
dc.okm.affiliatedauthor | Siekkinen, Reetta | |
dc.okm.affiliatedauthor | Dataimport, tyks, vsshp | |
dc.okm.affiliatedauthor | Teuho, Jarmo | |
dc.okm.discipline | 3126 Surgery, anesthesiology, intensive care, radiology | en_GB |
dc.okm.discipline | 3126 Kirurgia, anestesiologia, tehohoito, radiologia | fi_FI |
dc.okm.discipline | 3121 Internal medicine | en_GB |
dc.okm.discipline | 3121 Sisätaudit | fi_FI |
dc.okm.internationalcopublication | not an international co-publication | |
dc.okm.internationality | International publication | |
dc.okm.type | Journal article | |
dc.publisher.country | Yhdysvallat (USA) | fi_FI |
dc.publisher.country | United States | en_GB |
dc.publisher.country-code | US | |
dc.relation.doi | 10.1007/s12350-021-02769-6 | |
dc.relation.ispartofjournal | Journal of Nuclear Cardiology | |
dc.year.issued | 2021 | |