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随着生活水平提高及人口老龄化,冠状动脉粥样硬化性心脏病(冠心病,CAD)的发病率越来越高。DSA作为冠心病诊断的“金标准”,不仅费用高,而且是一种有创性检查,具有一定的危险性。研究表明,约66%行DSA的患者其目的仅在于冠心病的诊断,而不需要支架置入等进一步的处理[1]。多层螺
With the improvement of living standards and population aging, the incidence of coronary atherosclerotic heart disease (CAD) is higher and higher. DSA as the “gold standard” for the diagnosis of coronary heart disease, not only expensive, but also a invasive examination, with a certain degree of risk. Studies have shown that about 66% of DSA patients only aim at the diagnosis of coronary heart disease without further treatment [1]. Multi-layer spiral