Resumen

DIAZ, AR. Mamografía en Caracas: Calidad de Imagen y Dosis de Radiación. RFM [online]. 2000, vol.23, n.2, pp.135-139. ISSN 0798-0469.

A pilot survey of quality control test on mammography units in public hospital was conducted on 1993 in Caracas -Venezuela. The 10 units underwent measurement of alignment of light field to x-ray; screen-film contact; relative Kvp accuracy; half - value layer (HVL); reproducibility of exposure; stars be used for evaluation of focal spot; the mammography accreditation phantom be used for evaluation of image quality; the mean glandular dose was measure using the x-ray technique usually employed at the facility; and the AEC reproducibility was tested imaging 4 thick slabs of BR12. Despite the small number of x-ray units studied, the results demonstrated a large number of equipment malfunction and affect image quality or/and dose. Although this results was probably dependent on the older mammography units. The survey suggest that the quality control is essential in the quality of mammography studies.

Palabras clave : Quality assurance; Mammography; Quality image; Doses.