My wife is 55 years old. her echo cardiogram report is normal. Her ecg report speaks of STT changes, for which the doctor here told me to get a street Test, modified done. The stress test has come positive - it speaks of "significant ST segment depression over and above basal changes in exercise and early recovery, reverting to basal at the end of recovery" and concludes saying "stress test positive for inducible ischaemia by ST criteria, this could represent a false positive in view of baseline abnormality. Suggested clinical correlation and further evaluation as clinically appropriate" my doctor says that she is otherwise asymptomatic, with normal bp, triglycerides, non diabetic, no chest pain, no breathlessness, no palpitation, and may be because of baseline issues. But he has suggested for a ct scan coronary angiogram. I would like to know whether is angio is necessary, as I would not otherwise have liked to expose her to 64 radiation hazards, if avoidable. Please advise. Please tell me the charges and the digital payment path.