For pulmonary arterial and venous variation assessment , there were no significant differences in sensitivity , specificity , and accuracy among non-contrast-enhanced MRA ( pulmonary arteries : sensitivity , @ % ; specificity , @ % ; accuracy , @ % ; pulmonary veins : sensitivity , @ % ; specificity , @ % ; accuracy , @ % ) , @D contrast-enhanced MRA ( pulmonary arteries : sensitivity , @ % ; specificity , @ % ; accuracy , @ % ; pulmonary veins : sensitivity , @ % ; specificity , @ % ; accuracy , @ % ) , and thin-section contrast-enhanced MDCT ( pulmonary arteries : sensitivity , @ % ; specificity , @ % ; accuracy , @ % ; pulmonary veins : sensitivity , @ % ; specificity , @ % ; accuracy , @ % ) ( p > @ ) .