Evaluation of a cone beam CT artefact reduction algorithm.

Dento Maxillo Facial Radiology
B B BecharaM Noujeim

Abstract

An algorithm and software to reduce metal artefact has been developed recently and is available in the Picasso Master 3D® (VATECH, Hwaseong, Republic of Korea), which under visual assessment produces better quality images than were obtainable previously. The objective of this in vitro study was to investigate whether the metal artefact reduction (MAR) algorithm of the Picasso Master 3D machine reduced the incidence of metal artefacts and increased the contrast-to-noise ratio (CNR) while maintaining the same gray value when there was no metallic body present within the scanned volume. 20 scans with a range of 50-90 kVp were acquired, of which 10 had a metallic bead inserted within a phantom. The images obtained were analysed using public domain software (ImageJ; NIH Image, Bethesda, MD). Area histograms were used to evaluate the mean gray level variation of the epoxy resin-based substitute (ERBS) block and a control area. The CNR was calculated. The MAR algorithm increased the CNR when the metallic bead was present; it enhanced the ERBS gray level independently of the presence of the metallic bead. The image quality also improved as peak tube potential was increased. Improved quality of images and regaining of the control gray v...Continue Reading

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Citations

Apr 23, 2013·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Boulos BecharaMarcel Noujeim
Jul 6, 2014·Dental Clinics of North America·Kenneth Abramovitch, Dwight D Rice
Jul 6, 2014·Dental Clinics of North America·Scott R Makins
Aug 20, 2014·Dento Maxillo Facial Radiology·A ParsaP van der Stelt
Oct 23, 2012·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Boulos BecharaHassem Geha
Jan 14, 2016·Journal of International Society of Preventive & Community Dentistry·Anil Kumar NagarajappaRana Tiwari
Oct 6, 2012·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Jian DongCornelia Kober
Oct 30, 2016·International Journal of Radiation Oncology, Biology, Physics·Mark KorpicsJohn C Roeske
Dec 3, 2016·Dento Maxillo Facial Radiology·Polyane M QueirozDeborah Q Freitas
Nov 29, 2015·Technology in Cancer Research & Treatment·Mark KorpicsJohn C Roeske
Apr 19, 2018·Dento Maxillo Facial Radiology·Rocharles C FonteneleDeborah Q Freitas
Dec 13, 2018·Dento Maxillo Facial Radiology·Amanda Pelegrin CandemilMatheus Lima Oliveira
May 17, 2018·BMC Oral Health·Reinhilde JacobsMichael M Bornstein
Oct 11, 2017·Imaging Science in Dentistry·Katharina Alves RabeloDaniela Pita de Melo
Oct 11, 2012·Journal of Oral Science·Boulos BecharaFabricio B Teixeira
Mar 11, 2020·Dento Maxillo Facial Radiology·Luciano Augusto Cano MartinsFrancisco Haiter-Neto
Jun 15, 2020·International Endodontic Journal·H Gaêta-AraujoC Oliveira-Santos
Sep 5, 2019·Dentistry Journal·Ahmad Abdelkarim
Jul 7, 2017·Imaging Science in Dentistry·Marcus Vinicius Linhares de OliveiraJoana Santos
May 26, 2017·Clinical Oral Investigations·Polyane Mazucatto QueirozDeborah Queiroz Freitas
May 29, 2020·Dento Maxillo Facial Radiology·Margarete B McGuiganKeith Horner
Dec 2, 2020·Dento Maxillo Facial Radiology·Aline Pf CaetanoMaria Ag Silva
Feb 7, 2021·Journal of Endodontics·Tyler PhaneufErnest W N Lam
Apr 9, 2021·Imaging Science in Dentistry·Mariana Rodrigues OliveiraMaria Alves Garcia Silva
Sep 26, 2020·The Journal of Prosthetic Dentistry·Brittany Kane, Kumar C Shah

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