Comparison of manual and dose reduction modes of a MORITA R100 CBCT.
Dentomaxillofac Radiol
; 48(2): 20180009, 2019 Feb.
Article
em En
| MEDLINE
| ID: mdl-30182744
ABSTRACT
OBJECTIVE:
To compare effective dose differences when acquiring (1) dose reduction mode and (2) manual mode in a MORITA R100 CBCT.METHODS:
24 exposure protocols with different technique factors were performed in both the dose reduction mode and the manual mode in a Veraviewepocs 3D R100 cone beam CT device. 48 TLD were placed in a RANDO head phantom at 24 different sites. Effective doses were calculated according to the formalism published in the 103rd ICRP report.RESULTS:
Effective doses for the dose reduction mode protocols ranged from 14 to 156 µSv [mean = 57 µSv, standard deviation (SD) = 37 µSv], whereas effective doses for the manual mode protocols ranged from 22 to 267 µSv (mean = 94 µSv, SD = 65 µSv). Thus, across all protocols, the dose reduction mode leads to a drop of the effective dose by 38 % (SD = 6 %).CONCLUSIONS:
The estimated effective doses are significantly lower if dose reduction protocols are acquired.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dosimetria Termoluminescente
/
Tomografia Computadorizada de Feixe Cônico Espiral
Idioma:
En
Revista:
Dentomaxillofac Radiol
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Alemanha