Cone beam CT optimisation for detection of vertical root fracture with metal in the field of view or the exomass

被引:10
作者
Candemil, Amanda P. [1 ]
Salmon, Benjamin [2 ,3 ]
Vasconcelos, Karla F. [4 ,5 ]
Oenning, Anne C. [2 ,3 ,6 ]
Jacobs, Reinhilde [4 ,5 ,7 ]
Freitas, Deborah Q. [1 ]
Haiter-Neto, Francisco [1 ]
Mangione, Francesca [2 ,3 ]
Oliveira, Matheus L. [1 ]
机构
[1] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Oral Diag, Div Oral Radiol, Av Limeira 901, BR-13414903 Piracicaba, SP, Brazil
[2] Univ Paris, Imaging & Biotherapies Lab, URP2496, Orofacial Pathol, Montrouge, France
[3] Bretonneau & Henri Mondor Univ Hosp, AP HP, Dent Med Dept, Paris, France
[4] Katholieke Univ Leuven, OMFS IMPATH Res Grp, Dept Imaging & Pathol, Fac Med, Leuven, Belgium
[5] Univ Hosp Leuven, Oral & Maxillofacial Surg, Leuven, Belgium
[6] Inst Pesquisas Sao Leopoldo Mand, Fac Sao Leopoldo Mand, Div Oral Radiol, Campinas, SP, Brazil
[7] Karolinska Inst, Dept Dent Med, Stockholm, Sweden
关键词
COMPUTED-TOMOGRAPHY; ARTIFACTS; DIAGNOSIS; RECONSTRUCTION; QUALITY; IMAGES; TEETH;
D O I
10.1038/s41598-021-98345-6
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Dose optimisation has been revisited in the literature due to the frequent use of cone beam computed tomography (CBCT). Although the reduction of the field-of-view (FOV) size has shown to be an effective strategy, this indirectly increases the negative effect from the exomass. The aim of this study was to evaluate the diagnostic accuracy of an optimised CBCT protocol in the detection of simulated vertical root fracture (VRF) in the presence of metal in the exomass and/or inside the FOV. Twenty teeth were endodontically instrumented and VRF was induced in half of them. All teeth were individually placed in a human mandible covered with a soft tissue equivalent material, metallic materials were placed at different dispositions in the exomass and/or endomass, and CBCT scans were obtained at two dose protocols: standard and optimised. Five radiologists evaluated the images and indicated the presence of VRF using a 5-point scale. Area under the ROC curve (AUC), sensitivity, and specificity were calculated and compared using ANOVA (alpha = 0.05). Overall, AUC, sensitivity, and specificity did not differ significantly (p > 0.05) between the dose protocols. In conclusion, optimised dose protocols should be considered in the detection of simulated VRF irrespective of the occurrence of artefacts from metallic materials in the exomass and/or inside the FOV.
引用
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页数:8
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