The effect of non-linear blending function for dual-energy CT on CT image of pulmonary angiography / 实用放射学杂志
Journal of Practical Radiology
; (12): 1018-1020, 2014.
Article
Dans Zh
| WPRIM
| ID: wpr-452285
Responsable en Bibliothèque :
WPRO
ABSTRACT
Objective To evaluate the effect of non-linear blending function for dual-energy CT on image of pulmonary angiogra-phy.Methods 27 patients underwent dual energy CT pulmonary angiography(CTPA).Data obtained with 100 kVp,140kVp,and non-linear blending were divided into group A,B,and C respectively.CT value of emboli were measured.Corresponding signal to noise ratio(SNR )and contrast to noise ratio(CNR)were calculated.One-way Anova analysis and Friedman test were used to ana-lyze statistical significance among these values.Results On quantitative analysis of 27 patients,there was no statistical difference for CT value of CTPA among the three groups(P >0.05).For the noise,CNR and SNR,there were statistically significant among the three groups(P <0.05).Conclusion The non-linear blending function has certain advantages in improved image signal-to-noise ratio and it can be used in CT pulmonary angiography examination for patients suspected pulmonary embolism clinically .
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Indice:
WPRIM
langue:
Zh
Texte intégral:
Journal of Practical Radiology
Année:
2014
Type:
Article