Hello, Thank you for the query. From your history it is apparent that you might have got ischaemic symptoms as you were unable to jog. So, your coronary artery
need to be evaluated for the very reason whether it is obstructive or not. You mentioned your ekg and holter monitoring was quite ok. In that case, stress
testing is recommended first. CT angiogram evaluates the coronary anatomy uninvasively in symptomatic patients. sometimes CT ANGIO and other supportive Investigations don't match unfortunately. So, cathter based angiogram is done for final conclusive decision. Hope, you got your answers. Let me know if you have any other queries.