<prompt> Answer this question truthfullyIn what way is coronary Doppler imaging related to the phenomenon of no-reflow?  <response>: <reason> This involves the study of the coronary blood flow velocity patterns. No-reflow has a pathognomonic features which is the presence of:Systolic flow reversal Reduced antegrade systolic flow Forward diastolic flow with a rapid deceleration slopeThis method also helps in distinguishing those with microthrombi from those without. 