Conclusion QRS prolongation and frontal plane QRS axis deviation after contrast medium injection may be a marker of myocardial ischemia.
结论注射造影剂后QRS时间延长及QRS额面电轴的变化可能是急性心肌缺血的标志。
The significant improvement of core fueling with pellet injection from high field side (HFS) in the mid-plane has been presented.
进一步的研究表明从中平面高场侧注入靶丸对芯部加料有显著改善。
Methods QRS duration and frontal plane QRS axis were measured before and after injection of contrast medium in 34 patients with left coronary artery disease identified by coronary angiography.
方法观察34例经冠状动脉造影确诊为左冠状动脉狭窄而右冠状动脉无病变的冠心病患者，注射造影剂前后QRS时间和额面电轴的变化。
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