(1) To prospectively evaluate the effect of heart rate, heart rate variability, and calcification dual-source computed tomography (CT) image quality and to prospectively assess diagnostic accuracy of dual-source CT for coronary artery stenosis. by using invasive coronary angiography as the reference standard.前瞻性评价心率、心率变异性及钙化双源计算机 断层扫描成像质量的影响及对冠状动脉狭窄的 双源性冠状动脉狭窄诊断的准确性评价。以侵入 性冠状动脉造影为参照标准。malignant lesions.Performanceof needle aspiration and needle localization procedures followed by excisional
