The Correlation of Image Quality Adapted and Thoracic Diameters in Somatom Definition Flash Dual Source CT Coronary Artery Imaging
Abstract：Objective:To evaluate the correlation between image quality and thoracic diameters.Method:The clinical data of 52 patients which checked by Somatom Definition Flash dual source CT were divided into two group according to body mass index(BMI).There were 29 patients in group A with BMI values <25 kg/m2,CT images were obtained tube voltage 120 kV,tube current 220 mAs;and 23 patients in group B with BMI values ≥25 kg/m2 and <30 kg/m2.CT images were obtained tube voltage 120 kV,tube current 330 mAs.The contrast noise ratio(CNR),signal to noise ratio(SNR),as well as blind correlation test score values were calculated to establish the relationship among BMI,AP,RL and CNR,SNR.Result:AP,RL in group A,B were correlated to CNR(P<0.05).The correlation coefficient of CNR,SNR and RL were greater than that of AP.Except 2 level of group A,the correlation coefficient of CNR,SNR and AP were greater than that of BMI.Conclusion:Thoracic diameter can be used as guider to select the appropriate scan protocol in the coronary imaging acquisition with Somatom Definition Flash dual source CT.
Keywords：Somatom Definition Flash dual source CTCoronary artery imagingBody mass indexThoracic diameters
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 56-58 )