2020
DOI: 10.1016/j.ejmp.2020.01.021
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Practical radiation dosimetry across a variety of CBCT devices in Radiology

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Cited by 7 publications
(5 citation statements)
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“…CBCT reconstruction algorithms include calibrations to correct for this effect. 26 Therefore, the different uniformity levels obtained for the different phantoms could be caused by either an over-or under-correction of cupping caused by the different phantom thicknesses. The analysis of the image noise resulted in a larger noise measured for the O-arm and ClarifEye systems compared to Airo.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…CBCT reconstruction algorithms include calibrations to correct for this effect. 26 Therefore, the different uniformity levels obtained for the different phantoms could be caused by either an over-or under-correction of cupping caused by the different phantom thicknesses. The analysis of the image noise resulted in a larger noise measured for the O-arm and ClarifEye systems compared to Airo.…”
Section: Discussionmentioning
confidence: 99%
“…Cupping artifacts are usually found in CBCT images due to beam hardening effects and the large amount of scattered radiation. CBCT reconstruction algorithms include calibrations to correct for this effect 26 . Therefore, the different uniformity levels obtained for the different phantoms could be caused by either an over- or under-correction of cupping caused by the different phantom thicknesses.…”
Section: Discussionmentioning
confidence: 99%
“…With the O-arm®O2, Kai(FDD) cannot be measured with a solid-state dosimeter positioned on the imaging detector, because the detector is located inside the gantry (Figure 1 A) and is therefore not readily accessible [30]. We chose to adapt the EFOMP-ESTRO-IAEA methodology and directly measure the Dfov with a cylindrical ion-chamber (10X6-6, Radcal, Monrovia, CA, USA), precisely positioned at the isocenter location.…”
Section: Dfov Measurements During Cbctmentioning
confidence: 99%
“…A tecnologia de tomografia computadorizada de feixe cônico (CBCT) está disponível desde o ano 2000 e é crescente sua utilização em aplicações de radioterapia, odontologia, procedimentos intervencionistas e cirurgias guiadas por imagem (1). Cada uma destas aplicações possui características particulares de qualidade de imagem e dose de radiação.…”
Section: Introductionunclassified
“…Neste sentido, embora guias ou protocolos específicos de controle de qualidade tenham sido publicados para esta modalidade de equipamento (CBCT) (3-5), ainda há desafios na sua implementação prática considerando as particularidades dos equipamentos disponíveis no mercado. No caso do equipamento O-Arm, ainda são raros e pouco abrangentes os estudos publicados (1,(6)(7)(8) associando doses de radiação praticadas no paciente e na equipe clínica com avaliação da qualidade de imagem obtida nos diferentes modos de exposição à radiação e biótipos disponíveis nesse equipamento.…”
Section: Introductionunclassified