[Experimental Study of MAR Algorithm in Metal Artifact Removal of CT Simulator].
Zhongguo Yi Liao Qi Xie Za Zhi
; 44(1): 24-27, 2020 Jan 08.
Article
em Zh
| MEDLINE
| ID: mdl-32343061
ABSTRACT
OBJECTIVE:
To explore the application value of MAR algorithm in metal artifact removal of CT simulator.METHODS:
CT phantom with titanium plate was scanned using conventional algorithms and MAR algorithms, respectively. Artifact index(AI), contrast-to-noise ratio(CNR) and AI values at different slices were used to analyze the artifact images.RESULTS:
In artifact index, MAR algorithm (10.28±2.60) is significantly lower than conventional algorithm (20.65±5.04); In contrast-to-noise ratio index, MAR algorithm (7.81±1.12) is better than conventional algorithm (5.61±1.36). The above indicators were statistically significant in both algorithms (P<0.01). In the slices affected by metal artifacts, the artifact index decreased by 21.72%~88.40% after the MAR algorithm.CONCLUSIONS:
MAR algorithm can significantly reduce the metal artifacts and improve the clinical value of CT data.Palavras-chave
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Bases de dados:
MEDLINE
Assunto principal:
Algoritmos
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Tomografia Computadorizada por Raios X
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Artefatos
/
Metais
Tipo de estudo:
Prognostic_studies
Idioma:
Zh
Revista:
Zhongguo Yi Liao Qi Xie Za Zhi
Ano de publicação:
2020
Tipo de documento:
Article