虽然阳性诊断率仅5%，只要ECG正常，也基本能排除心肌局部缺血、心率不齐和器质性心脏病。

Although the diagnostic yield is only 5%, if the ECG is normal, ischemia, arrhythmias, and organic heart disease are very unlikely.

youdao

虽然阳性诊断率仅5%，只要ECG正常，也基本能排除心肌局部缺血、心率不齐和器质性心脏病。

Although the diagnostic yield is only 5%, if the ECG is normal, ischemia, arrhythmias, and organic heart disease are very unlikely.

youdao