Systole and Diastole

NORMAL MRI IN SYSTOLE AND DIASTOLE
19 year old male with syncope with normal MRI.
Images a and b show peak systole with volumes of the LV and RV about 1/3 the volume of their respective ventricles when in diastole. This leaves 2/3 of volume has been ejected implying that the ejection fraction is 66%
Ashley Davidoff MD