Multi-mode comparative study of image quality and radiation dose on CTA in infants with congenital heart disease
ZHANG Menglong
WEI Qin
WANG Jing
Abstract：Objective To compare radiation dose and image quality of different CTA modes for children with complex congeni -tal heart disease .Methods We retrospectively assembled two cohorts from 80 infants who underwent heart CTA from August 2014 to January 2013 with different protocol , each containing 30 patients .Two radiologists assessed image quality with 5-piont scale subjectively.Radiation dose parameters (CTDIvol and DLP) were compared.Results Mean CTDIvol and DLP were 93.02 ±0.17) mGy and (67.8 ±3.8) mGy? cm for Flash mode, (1.35 ±0.06) mGy and (28.3 ±1.6) mGy? cm for prospective ECG-triggering mode.Image quality indicated no difference between groups ( Z =-0.403, P =0.715).Conclusion Compared with Flash mode, prospective ECG-triggering mode has the same good image quality for infant cardiac dual-source CT angiogra-phy, meanwhile radiation dose is significantly lower with prospective ECG-triggering mode.
Keywords：Dual source CTCongenital heart diseaseImage qualityRadiation dose
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 617-619,629 )