<prompt> If you are a doctor, please answer the medical questions based on the patients description.i am 63 years old man. about a month back i had pain in chest and felt heaviness. I was hospitalised and my ct angiogram showed 60 blockage by plaque coronary artery. since then i am on treatment. but i feel still heaviness in chest most of the time and feel uneasyness. pl advise whetehr i shold go for any invasive treatment.  <response>: Hi, CT coronary Anglo is a very good test that accurately tell whether you have a blockage or not. If it does not show any blockage than it is certain you dont have a blockage. But if it shows blockage it does not reveal the exact percentage of blockage. To know that you need a coronary angiography which is an invasive procedure. So I strongly recommend you to go for invasive coronary angiography. Chat Doctor. 