This study demonstrated that the adequte shortening of the IVRT and IVRTc during Dob infusiom is a sensitive parameter for the detection of viable myocardium in patients with OMI.

• 本研究提示，在多巴酚丁胺注射时IVRT和IVRTc的变化对于检测存活心肌是一项敏感的参考指标