Research on detection analysis of CT quality control / 中国医学装备
China Medical Equipment
;
(12): 119-121, 2016.
Artículo
en Chino
| WPRIM
| ID: wpr-483785
ABSTRACT
Objective:
To used the internationally accepted methods of CT quality assurance for testing their quality, to maintain the normal operation of CT scanner and guarantee the quality of photographic image.Methods:
Toshiba Activion 16 row CT, set the scanning conditions tube voltage 120 kv, 310 mas exposure, scan time is 0.33 s, scanning layer thickness 10 mm, 5 mm, 1.5 mm, view(FOV) 150 mm×150 mm, 512 x 512 reconstruction matrix. We measured the following performance parameters for CT spatial resolution, low contrast resolution,uniformity and noise with Catphan500 phantom made by the phantom laboratory of U.S.A.Results:
The spatial resolution, low contrast resolution, uniformity and noise of the CT are all in line with the requirements. Obtained by detecting the X-ray dose, pixel, the thickness of the above parameters are affected, but also the interaction between the above parameters simultaneously.Conclusion:
By detecting the spatial resolution, low contrast resolution of medical image, we can effectively guarantee system performance, maintaining optimal image quality.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Tipo de estudio:
Estudio diagnóstico
Idioma:
Chino
Revista:
China Medical Equipment
Año:
2016
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS