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- W2361776544 abstract "Objective:To evaluate the image quality of different tube voltage with different iodine concentration contrast agent in coronary artery computed tomography angiography(CTA),and discuss its clinical value.Methods:Fifty patients underwent coronary artery CTA,and they were randomly assigned to 2groups,Group A(n=25)was scanned using120 kVp and 370 mg I/mL iodine concentration contrast agent,Group B(n=25)was scanned using 100 kVp and 270 mg I/mL iodine concentration contrast agent,images were reconstructed using filtered back projection(FBP).Then CT attenuation of two main branches(proximal RCA and LMA)of coronary artery,SNR,CNR,subjective scoring of image quality,volume CT dose idex(CTDIvol),dose length product(DLP)and effective dose(ED)were measured and compared.Results:The coronary artery CT attenuation,SNR,CNR and subjective scoring of the two groups had no statistically significant differences(Pvalue0.05),but the CTDIvol,DLP and ED of the two groups were statistically different(Pvalue0.05),and the data of Group B were all lower than those of Group A.Conclusion:The coronary artery CTA using 100 kVp with 270 mg I/mL iodinated contrast agent can provide similar image quality as compared with CTA using 120 kVp and 370 mg I/mL with non-iterative reconstruction,thus enabling to reduce radiation dose without loss of diagnostic information." @default.
- W2361776544 created "2016-06-24" @default.
- W2361776544 creator A5038931146 @default.
- W2361776544 date "2015-01-01" @default.
- W2361776544 modified "2023-09-23" @default.
- W2361776544 title "Clinical application of double source computed tomography with low-voltage and low-iodine concentration contrast agent using non-iterative reconstruction in coronary artery CT angiography" @default.
- W2361776544 hasPublicationYear "2015" @default.
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