Estimation of contrast-to-noise ratio in CT and CBCT images with varying scan settings in presence of different implant materials

Basit Öğe Kaydı
dc.authorid0000-0003-0819-4578
dc.authorid0000-0002-4205-861X
dc.contributor.authorÇakmak, Emine Şebnem Kurşun
dc.contributor.authorKocasaraç, Hüsniye Demirtürk
dc.contributor.authorBayrak, Seval
dc.contributor.authorUstaoğlu, Gülbahar
dc.contributor.authorNoujeim, Marcel
dc.date.accessioned2021-06-23T19:52:26Z
dc.date.available2021-06-23T19:52:26Z
dc.date.issued2019
dc.departmentBAİBÜ, Diş Hekimliği Fakültesi, Ağız, Diş ve Çene Radyolojisi Ana Bilim Dalıen_US
dc.description.abstractObjectives: To assess the contrast-to-noise ratio (CNR) of four different types of dental implant materials in CT and cone beam CT (CBCT) images with varying scan settings. Methods: Four different types of implants: zirconium (Zr), titanium (Ti) Grade 4 and 5 and titanium-zirconium (Ti-ZrO2) alloy were placed in a 3% gelatin phantom in a cylindrical plastic container and scanned with two different CT machines (GE Medical systems and Toshiba Medical Systems) and one CBCT machine (I-CAT, Imaging Sciences International) with different voxel sizes of 0.2, 0.25, 0.3 and 0.4mm. Images were analyzed using ImageJ software with the purpose of estimating the CNR. Results: The CNR obtained from images acquired with CT was lower than the CBCT with all voxel sizes tested. 0.3 and 0.4mm voxel sizes exhibited the highest CNR (p < 0.05) that gives the best image quality. Among the implant materials tested, titanium Grade 5 has the highest levels of CNR while Zirconium has the lowest (p < 0.05). Conclusions: The optimum protocol for radiographic follow-up in areas near implants on the I-CAT is low-resolution settings (0.3 and 0.4mm voxel sizes) which gave the highest CNR thus image quality. In presence of Zr implants, an alternative imaging modality (i.e., MRI) may be considered to avoid low-quality images.en_US
dc.identifier.doi10.1259/dmfr.20190139
dc.identifier.issn0250-832X
dc.identifier.issn1476-542X
dc.identifier.issue8en_US
dc.identifier.pmid31386553en_US
dc.identifier.scopus2-s2.0-85075814553en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1259/dmfr.20190139
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10152
dc.identifier.volume48en_US
dc.identifier.wosWOS:000498901000005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorBayrak, Seval
dc.institutionauthorUstaoğlu, Gülbahar
dc.language.isoenen_US
dc.publisherBritish Inst Radiologyen_US
dc.relation.ispartofDentomaxillofacial Radiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCone Beam Computed Tomographyen_US
dc.subjectContrast-to-noise Ratioen_US
dc.subjectDental Implanten_US
dc.titleEstimation of contrast-to-noise ratio in CT and CBCT images with varying scan settings in presence of different implant materialsen_US
dc.typeArticleen_US

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