[Technical parameters to decrease the radiation dose from conventional and digital radiographs]. / Éléments technologiques permettant de réduire la dose en radiologie conventionnelle et numérique.
J Radiol
; 91(11 Pt 2): 1225-30, 2010 Nov.
Article
en Fr
| MEDLINE
| ID: mdl-21178896
ABSTRACT
Reducing radiation dose while maintaining adequate image quality on conventional and digital radiographs requires optimal use of the unit. Additional filtration avoids unnecessary tissue exposure and improves photon transmission. Automatic exposure control may reduce exposure and dose. The volume of tissue imaged must be limited by the use of diaphragms and shutters or compression. Sensitive detectors with increased photon detection also contribute to reduce dose. Radiographic films combined to rare-earth screens also afford a good photon-conversion efficiency. Large area flat panel amorphous silicon x-ray sensors may also reduce dose up to 50% compared to films. Finally, calculation of the Kerma-area product independent of the source distance constitutes an important indicator of radiation dose.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Dosis de Radiación
/
Traumatismos por Radiación
/
Protección Radiológica
/
Intensificación de Imagen Radiográfica
/
Tecnología Radiológica
Límite:
Humans
País/Región como asunto:
Europa
Idioma:
Fr
Revista:
J Radiol
Año:
2010
Tipo del documento:
Article
País de afiliación:
Francia