Halve the dose while maintaining image quality in paediatric cone beam CT

Research output: Contribution to journalArticlepeer-review

Standard

Halve the dose while maintaining image quality in paediatric cone beam CT. / Oenning, Anne Caroline Costa; Pauwels, Ruben; Stratis, Andreas; De Faria Vasconcelos, Karla; Tijskens, Elisabeth; De Grauwe, Annelore; Jacobs, Reinhilde; Salmon, Benjamin; Baatout, Sarah; Belmans, Niels; Moreels, Marjan.

In: Scientific Reports, Vol. 9, 5521, 02.04.2019, p. 1-9.

Research output: Contribution to journalArticlepeer-review

Harvard

Oenning, ACC, Pauwels, R, Stratis, A, De Faria Vasconcelos, K, Tijskens, E, De Grauwe, A, Jacobs, R, Salmon, B, Baatout, S, Belmans, N & Moreels, M 2019, 'Halve the dose while maintaining image quality in paediatric cone beam CT', Scientific Reports, vol. 9, 5521, pp. 1-9. https://doi.org/10.1038/s41598-019-41949-w

APA

Oenning, A. C. C., Pauwels, R., Stratis, A., De Faria Vasconcelos, K., Tijskens, E., De Grauwe, A., Jacobs, R., Salmon, B., Baatout, S., Belmans, N., & Moreels, M. (2019). Halve the dose while maintaining image quality in paediatric cone beam CT. Scientific Reports, 9, 1-9. [5521]. https://doi.org/10.1038/s41598-019-41949-w

Vancouver

Oenning ACC, Pauwels R, Stratis A, De Faria Vasconcelos K, Tijskens E, De Grauwe A et al. Halve the dose while maintaining image quality in paediatric cone beam CT. Scientific Reports. 2019 Apr 2;9:1-9. 5521. https://doi.org/10.1038/s41598-019-41949-w

Author

Oenning, Anne Caroline Costa ; Pauwels, Ruben ; Stratis, Andreas ; De Faria Vasconcelos, Karla ; Tijskens, Elisabeth ; De Grauwe, Annelore ; Jacobs, Reinhilde ; Salmon, Benjamin ; Baatout, Sarah ; Belmans, Niels ; Moreels, Marjan. / Halve the dose while maintaining image quality in paediatric cone beam CT. In: Scientific Reports. 2019 ; Vol. 9. pp. 1-9.

Bibtex - Download

@article{bd347abde4c7436a8317528f69882790,
title = "Halve the dose while maintaining image quality in paediatric cone beam CT",
abstract = "Cone beam CT (CBCT) for dentomaxillofacial paediatric assessment has been widely used despite the uncertainties of the risks of the low-dose radiation exposures. The aim of this work was to investigate the clinical performance of different CBCT acquisition protocols towards the optimization of paediatric exposures. Custom-made anthropomorphic phantoms were scanned using a CBCT unit in six protocols. CT slices were blinded, randomized and presented to three observers, who scored the image quality using a 4-point scale along with their level of confidence. Sharpness level was also measured using a test object containing an air/PMMA e,dge. The effective dose was calculated by means of a customized Monte Carlo (MC) framework using previously validated paediatric voxels models. The results have shown that the protocols set with smaller voxel size (180 µm), even when decreasing exposure parameters (kVp and mAs), showed high image quality scores and increased sharpness. The MC analysis showed a gradual decrease in effective dose when exposures parameters were reduced, with an emphasis on an average reduction of 45% for the protocol that combined 70 kVp, 16 mAs and 180 µm voxel size. In contrast, both {"}ultra-low dose{"} protocols that combined a larger voxel size (400 µm) with lower mAs (7.4 mAs) demonstrated the lowest scores with high levels of confidence unsuitable for an anatomical approach. In conclusion, a significant decrease in the effective dose can be achieved while maintaining the image quality required for paediatric CBCT",
keywords = "Cone beam CT, Dental CBCT, radiation exposure, dentistry, Monte Carlo calculations",
author = "Oenning, {Anne Caroline Costa} and Ruben Pauwels and Andreas Stratis and {De Faria Vasconcelos}, Karla and Elisabeth Tijskens and {De Grauwe}, Annelore and Reinhilde Jacobs and Benjamin Salmon and Sarah Baatout and Niels Belmans and Marjan Moreels",
note = "Score=10",
year = "2019",
month = apr,
day = "2",
doi = "10.1038/s41598-019-41949-w",
language = "English",
volume = "9",
pages = "1--9",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

RIS - Download

TY - JOUR

T1 - Halve the dose while maintaining image quality in paediatric cone beam CT

AU - Oenning, Anne Caroline Costa

AU - Pauwels, Ruben

AU - Stratis, Andreas

AU - De Faria Vasconcelos, Karla

AU - Tijskens, Elisabeth

AU - De Grauwe, Annelore

AU - Jacobs, Reinhilde

AU - Salmon, Benjamin

AU - Baatout, Sarah

AU - Belmans, Niels

AU - Moreels, Marjan

N1 - Score=10

PY - 2019/4/2

Y1 - 2019/4/2

N2 - Cone beam CT (CBCT) for dentomaxillofacial paediatric assessment has been widely used despite the uncertainties of the risks of the low-dose radiation exposures. The aim of this work was to investigate the clinical performance of different CBCT acquisition protocols towards the optimization of paediatric exposures. Custom-made anthropomorphic phantoms were scanned using a CBCT unit in six protocols. CT slices were blinded, randomized and presented to three observers, who scored the image quality using a 4-point scale along with their level of confidence. Sharpness level was also measured using a test object containing an air/PMMA e,dge. The effective dose was calculated by means of a customized Monte Carlo (MC) framework using previously validated paediatric voxels models. The results have shown that the protocols set with smaller voxel size (180 µm), even when decreasing exposure parameters (kVp and mAs), showed high image quality scores and increased sharpness. The MC analysis showed a gradual decrease in effective dose when exposures parameters were reduced, with an emphasis on an average reduction of 45% for the protocol that combined 70 kVp, 16 mAs and 180 µm voxel size. In contrast, both "ultra-low dose" protocols that combined a larger voxel size (400 µm) with lower mAs (7.4 mAs) demonstrated the lowest scores with high levels of confidence unsuitable for an anatomical approach. In conclusion, a significant decrease in the effective dose can be achieved while maintaining the image quality required for paediatric CBCT

AB - Cone beam CT (CBCT) for dentomaxillofacial paediatric assessment has been widely used despite the uncertainties of the risks of the low-dose radiation exposures. The aim of this work was to investigate the clinical performance of different CBCT acquisition protocols towards the optimization of paediatric exposures. Custom-made anthropomorphic phantoms were scanned using a CBCT unit in six protocols. CT slices were blinded, randomized and presented to three observers, who scored the image quality using a 4-point scale along with their level of confidence. Sharpness level was also measured using a test object containing an air/PMMA e,dge. The effective dose was calculated by means of a customized Monte Carlo (MC) framework using previously validated paediatric voxels models. The results have shown that the protocols set with smaller voxel size (180 µm), even when decreasing exposure parameters (kVp and mAs), showed high image quality scores and increased sharpness. The MC analysis showed a gradual decrease in effective dose when exposures parameters were reduced, with an emphasis on an average reduction of 45% for the protocol that combined 70 kVp, 16 mAs and 180 µm voxel size. In contrast, both "ultra-low dose" protocols that combined a larger voxel size (400 µm) with lower mAs (7.4 mAs) demonstrated the lowest scores with high levels of confidence unsuitable for an anatomical approach. In conclusion, a significant decrease in the effective dose can be achieved while maintaining the image quality required for paediatric CBCT

KW - Cone beam CT

KW - Dental CBCT

KW - radiation exposure

KW - dentistry

KW - Monte Carlo calculations

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/33503479

U2 - 10.1038/s41598-019-41949-w

DO - 10.1038/s41598-019-41949-w

M3 - Article

VL - 9

SP - 1

EP - 9

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 5521

ER -

ID: 5034931