Gía trị của chụp cắt lớp vi tính hai nguồn năng lượng trong đánh giá bệnh lý hẹp động mạch vành không sử dụng thuốc kiểm soát nhịp tim

Value of dual-source computed tomography for evaluation coronary arterial stenosis without heart rate control medicine

summa ry

Objective: Accuracy of dual-source computed tomography (DSCT) for evaluation of coronary arterial stenosis without heart rate control.

Material and methods: During 1 year (between January 2012 and December 2012), 108 patients were examined by second-generation dual-source computed tomographycoronary angiography without heart rate control at Radiology Departement of Bach Mai hospital and underwent conventional coronary angiography. All the data of DSCT were compared with the result of CCA to assess the sensitivity, specificity and accuracy for evaluation of coronary artery stenoses.

Result: We enrolled 108 patients (65 male, 43 female, mean age 62,9 years). Mean heart rate was 77.4 bpm, radiation dose was 3.66 mSv. Eighty-four patients (77.8%) had good image quality. Ninety-seven patients (89.8%) were identified as having significant coronary stenoses. 11 patients (11.2%) having no significant coronary stenoses. Sensitivity, specificity and accuracy were 93.9%, 93.6% and 93.7%.

Conclusion: DSCT provides a high diagnostic accuracy for evaluation coronary arterial stenosis.