Experimental study of X-ray mammography in a fluid bath: reduced radiation dose and improved detail resolution.
Invest Radiol
; 34(11): 678-84, 1999 Nov.
Article
en En
| MEDLINE
| ID: mdl-10548379
ABSTRACT
OBJECTIVE:
To determine the effects on x-ray mammography of embedding the breast in a fluid bath.METHODS:
A plexiglass phantom in the shape of a compressed breast was x-rayed in air and water with a mammography unit, and the radiation dose was measured by 20 thermoluminescence dosimeters placed in 20 representative positions on the surface of the phantom. Udders from slaughtered sheep as an animal model and phantoms were examined by mammography in identical positions surrounded by air and different fluids. The images were evaluated for detail resolution subjectively (animal model) and objectively (phantom containing quantifiable structures) by 6 and 15 blinded readers, respectively. The readers' results were analyzed and compared for visualization of the objects in air versus fluid.RESULTS:
Mammographic examination in the fluid bath reduced the radiation dose and improved detail resolution in the rounded margin of the breast. Also, viewing conditions in the central region were improved as a result of the uniform optical density across the entire film area.CONCLUSIONS:
Performing x-ray mammography in a fluid bath has advantages that make the technical realization of this method desirable.
Buscar en Google
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Mamografía
/
Intensificación de Imagen Radiográfica
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
/
Female
/
Humans
Idioma:
En
Revista:
Invest Radiol
Año:
1999
Tipo del documento:
Article
País de afiliación:
Alemania