... SPECT分为有存活心肌组、无存活心肌组,采用小剂量多巴酚丁胺负荷超声心动图试验(Low Dose Dobutamine Stress Echocardiography,LDDSE ),按2。
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因此负荷超声心动图试验可被看作是冠脉造影的守门人。
Therefore stress echocardiography can be used as a gate keeper for coronary angiography.
结论：本研究显示握力负荷超声心动图试验是可行的、安全的。
Conclusions The safety of grip exercise test of exercise stress echocardiography have been proved.
而负荷超声心动图试验正常的患者心脏事件的发生率低并且可以避免侵入。
Patients with normal stress echocardiogram have a low cardiac event rate and can be exempted for invasive procedure.
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