Comparative study of multi-detector CT and breathhold 3D MR coronary angiography in patients with coronary artery disease
- VernacularTitle:多层螺旋CT和三维屏气MR冠状动脉成像的对比研究
- Author:
Xin LIU
;
Zulong CAI
;
Youquan CAI
;
Shaohong ZHAO
;
Ningyu AN
;
Weimin AN
;
Yuangui GAO
- Publication Type:Journal Article
- Keywords:
Coronary angiography;
Tomography, X-ray computed;
Magnetic resonance angiography
- From:
Chinese Journal of Radiology
1994;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
50%) in patients with suspected coronary artery disease.Methods Both coronary MDCT angiography (CTA) and MR angiography (MRA) was performed within 3 days in 40 patients with suspected coronary artery disease, and conventional coronary angiography (CAG) was performed within 2 weeks after MDCT and MR scan in 31 patients. CTA was performed with a 16-MDCT scanner. MRA was performed on a 1.5 T MR scanner with breathhold 3D fast imaging employing steady state acquisition sequence. CTA and MRA image quality was evaluated in 9 coronarysegments by two experienced radiologists in concensus using a four-point grading scale. Sensitivity, specificity, positive predictive value, and negative predictive value were calculated for detection of significant stenosis on a segmental basis using CAG as reference and gold standard. Results MDCT showed higher image quality in most coronary segments except middle RCA (P
