Research on detection analysis of CT quality control / 中国医学装备
China Medical Equipment
; (12): 119-121, 2016.
Article
em Zh
| WPRIM
| ID: wpr-483785
Biblioteca responsável:
WPRO
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.
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1
Índice:
WPRIM
Tipo de estudo:
Diagnostic_studies
Idioma:
Zh
Revista:
China Medical Equipment
Ano de publicação:
2016
Tipo de documento:
Article