Dual-source CT angiography for evaluation of coronary artery stenosis in elderly and middle-agedpatients
10.3760/cma.j.issn.1671-7368.2012.01.022
- VernacularTitle:双源CT冠状动脉造影对老年与中年冠状动脉狭窄的评价作用研究
- Author:
Bin QIAN
;
Hongwei CHEN
;
Liyuan WU
;
Yin CHEN
;
Xiaodong ZHAI
- Publication Type:Journal Article
- Keywords:
Coronary disease;
Tomography,X-ray computed
- From:
Chinese Journal of General Practitioners
2012;11(1):51-53
- CountryChina
- Language:Chinese
-
Abstract:
One hundred patients were diagnosed with coronary heart disease through dual-source CT coronary angiography (DSCTA) in our hospital,including 53 cases aged ≥60 y (elderly group) and 47 cases ＜60 y (middle-aged group).The curved-planar reconstruction (CPR),maximal intensity projection (MIP) and other post-processing reconstruction techniques were used to evaluate the indicators and differences of coronary stenosis ≥ 50％ ; the X-ray coronary angiography (CAG) findings were regarded as the gold standard.The evaluable rates of coronary arteries through DSCTA were 97.0％ and 98.6％ for two groups (P ＞0.05).The positive rate of coronary artery stenosis ≥ 50％ in elderly group was higher than that of middle-age group ( 12.6％ vs 9.0％ P ＜0.05 ).The rates of multi-vessel disease in elderly group (28.3％ ) was also significantly higher than that of middle-age group (6.4％,P ＜0.05 ).The sensitivity,specificity,positive predictive value and negative predictive value in evaluation of coronary artery stenosis ≥ 50％ for elderly patients were 92.3％,98.0％,88.0％ and 98.9％ respectively; those for middle-aged patients were 96.0％,99.0％,90.6％ and 99.6％ respectively ( P ＞0.05 ).DSCTA imaging provides an effective screening and evaluation method for coronary heart disease in elderly and middle-aged patients.
