Hi shunmugam,
I had a conversation with you when you first posted on this site.I am very
pleased to hear with timely intervention you have made a full recovery from
your stroke.Welcome back,it is important to understand health issues.I had the
clot buster(Thrombolytics) drug shortly after my MI in 2005.As I recalled this
was done in the ambulance on the way to the emergency department.I understand
that it should not be administered a second time since it may be less effective.
I was made to believe that TPA , a different "clot buster" can be administered
more than once to clear the blood clot.

The standard treatment after an MI following stent insertion I believe is taking
75 mg of Aspirin/Clopidogrel daily to prevent blood clot forming around the
stents and also to prevent future heart attack,stroke and thrombosis in the
veins of the legs.

MRI scan can be used with people if the medical team are convinced of the
benefit to the individual,the device can be switch off and reprogramme after the
examination.In your case your medical team did
not think fit to use the MRI,as they have alternative and safer way in helping
you.
Kind regards
Sam.