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.
Article
en Zh
| WPRIM
| ID: wpr-306380
Biblioteca responsable:
WPRO
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:
1
Base de datos:
WPRIM
Asunto principal:
Dosis de Radiación
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Dosimetría Termoluminiscente
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Diagnóstico por Imagen
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Radiografía Dental
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Fantasmas de Imagen
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Tomografía Computarizada de Haz Cónico
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Tomografía Computarizada Multidetector
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Mandíbula
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Maxilar
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Métodos
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
Zh
Revista:
Chinese Journal of Stomatology
Año:
2011
Tipo del documento:
Article