Application of Digital Radiography with Dual-energy Subtraction in Coronary Artery Calcification
- VernacularTitle:数字化双能量摄影在冠脉钙化诊断中的应用
- Author:
Jianxin CHEN
;
Ziqian CHEN
;
Chunlei ZHAO
- Publication Type:Journal Article
- Keywords:
digital radiography;
dual-energy subtraction;
coronary artery;
calcification
- From:
Chinese Medical Equipment Journal
1989;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the clinical value of digital radiography with dual-energy subtraction in diagnosis of coronary artery and valve calcification. Methods 920 patients(older than 70) was examined by GE Revolution XRD with chest dual-energy subtraction. The positive rate of calcification of 146 patients who were highly or generally suspected for coronary artery calcification in bone window's and high Kilovotor digital graph of dual-energy subtraction were compared with the result of 16 slices MSCT. Results 135 patients with highly suspected coronary artery calcification and 11 patients with generally suspected coronary artery calcification in bone window's digital graph were examined by 16 slices MSCT. In those 135 patients with highly suspected coronary artery calcification, 128 cases were proved to be positive with 16 slices MSCT. In those 11 patients with generally suspected coronary artery calcification, 3 cases were proved to be positive with 16 slices MSCT. In those 12 patients who were positive with coronary artery calcification in high Kilovotor graph, 10 patients were confirmed to have coronary artery calcification in MSCT. In those 134 patients who were negative with coronary artery calcification in DDR, 126 patients were confirmed to have coronary artery calcification in MSCT. Conclusion Dual-energy subtraction digital radiography can offer potentially important new information in the evaluation of coronary artery calcium.
