Optimizing cone-beam computed tomography exposure for an effective radiation dose and image quality balance
Ananda Amaral Santos, Brunno Santos de Freitas Silva, Fernanda Ferreira Nunes Correia, Eleazar Mezaiko, Camila Ferro de Souza Roriz, Maria Alves Garcia Silva, Deborah Queiroz Freitas, Fernanda Paula Yamamoto-Silva
ARTIGO
Inglês
Agradecimentos: This study was supported by grants from the National Council for Scientific and Technological Development (CNPq, grant 423885/2018-9 to F.P.Y.S.) and FUNADESP (4-1383/2022)
Abstract: The aim of this study was to evaluate the influence of different cone-beam computed tomography (CBCT) acquisition protocols on reducing the effective radiation dose while maintaining image quality. The effective dose emitted by a CBCT device was calculated using thermoluminescent...
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Abstract: The aim of this study was to evaluate the influence of different cone-beam computed tomography (CBCT) acquisition protocols on reducing the effective radiation dose while maintaining image quality. The effective dose emitted by a CBCT device was calculated using thermoluminescent dosimeters placed in a Rando Alderson phantom. Image quality was assessed by 3 experienced evaluators. The relationship between image quality and confidence was evaluated using the Fisher exact test, and the agreement among raters was assessed using the kappa test. Multiple linear regression analysis was performed to investigate whether the technical parameters could predict the effective dose. P-values<0.05 were considered to indicate statistical significance. The optimized protocol (3 mA, 99 kVp, and 450 projection images) demonstrated good image quality and a lower effective dose for radiation-sensitive organs. Image quality and confidence had consistent values for all structures (P<0.05). Multiple linear regression analysis resulted in a statistically significant model. The milliamperage (b=0.504; t=3.406; P=0.027), kilovoltage peak (b=0.589; t=3.979; P=0.016) and number of projection images (b=0.557; t=3.762; P=0.020) were predictors of the effective dose. Optimized CBCT acquisition protocols can significantly reduce the effective radiation dose while maintaining acceptable image quality by adjusting the milliamperage and projection images
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
423885/2018-9
Aberto
DOI: https://doi.org/10.5624/isd.20230251
Texto completo: https://isdent.org/DOIx.php?id=10.5624/isd.20230251
Optimizing cone-beam computed tomography exposure for an effective radiation dose and image quality balance
Ananda Amaral Santos, Brunno Santos de Freitas Silva, Fernanda Ferreira Nunes Correia, Eleazar Mezaiko, Camila Ferro de Souza Roriz, Maria Alves Garcia Silva, Deborah Queiroz Freitas, Fernanda Paula Yamamoto-Silva
Optimizing cone-beam computed tomography exposure for an effective radiation dose and image quality balance
Ananda Amaral Santos, Brunno Santos de Freitas Silva, Fernanda Ferreira Nunes Correia, Eleazar Mezaiko, Camila Ferro de Souza Roriz, Maria Alves Garcia Silva, Deborah Queiroz Freitas, Fernanda Paula Yamamoto-Silva
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Imaging science in dentistry (Fonte avulsa) |