Comparative dosimetry of dental cone-beam computed tomography and multi-slice computed tomography for oral and maxillofacial radiology / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 595-599, 2011.
Artigo
em Chinês
| WPRIM
| ID: wpr-306380
ABSTRACT
<p><b>OBJECTIVE</b>To compare the effective radiation dose levels of cone beam computed tomography (CBCT) with those of multi-slice computed tomography (MSCT) when scanning the same maxillofacial regions.</p><p><b>METHODS</b>The effective doses of 2 CBCT (NewTom 9000 and DCT Pro) and 1 MSCT (bright speed edge select 8 slice) scanners were calculated using thermoluminescent dosimeters (TLD) that were placed in a head and neck phantom, and expressed according to the International Commission on Radiation Protection (ICRP) 2007 guidelines.</p><p><b>RESULTS</b>Effective dose values ranged from 41.8 to 249.1 µSv for CBCT. The doses of MSCT scanning for maxilla, mandible and maxilla + mandible were 506.7, 829.9 and 1066.1 µSv, respectively. Dose levels of scanning only for maxilla or mandible were significantly lower than those for maxilla + mandible.</p><p><b>CONCLUSIONS</b>When scanning the same maxillofacial regions, the dose levels for NewTom 9000 and DCT Pro CBCT images were lower than those for Bright speed edge select 8 slice MSCT images. Dose levels reduction could be obtained when smaller regions were scanned.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Doses de Radiação
/
Dosimetria Termoluminescente
/
Diagnóstico por Imagem
/
Radiografia Dentária
/
Imagens de Fantasmas
/
Tomografia Computadorizada de Feixe Cônico
/
Tomografia Computadorizada Multidetectores
/
Mandíbula
/
Maxila
/
Métodos
Tipo de estudo:
Estudo diagnóstico
Limite:
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Stomatology
Ano de publicação:
2011
Tipo de documento:
Artigo
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