HomeAnswersInterventional radiologycoronary angiographyCT angiography can accurately find heartblocks. Is it true?

Is CT coronary angiography better than catheter based investigation for heart blocks?

Is CT coronary angiography better than catheter based investigation for heart blocks?

The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. K. Murali

Medically reviewed by

iCliniq medical review team

Published At April 25, 2018
Reviewed AtFebruary 17, 2024

Patient's Query

Hello doctor,

320 slice CT scan machines have been introduced in my country. It is claimed that a CT coronary angiography done on such a machine will pinpoint accurately the blocks in the heart. Rendering a catheter based investigation unnecessary. Can you confirm whether this is true?

Answered by Dr. K. Murali


Welcome to icliniq.com.

It is not always true. Even today catheter angiography is the gold standard. CTA (computed tomography coronary angiogram) is a good screening tool to evaluate coronary blocks in high-risk asymptomatic patients or to assess preoperative cardiac fitness in some patients admitted for non-cardiac surgeries. If a patient has symptoms suggesting coronary artery disease, confirmed by ECG (electrocardiography) and echocardiogram, it is better to go for catheter angiogram. New generation CT scanners provide excellent quality images but CTA has not replaced catheter-based angiogram at present. But the future for CT angiogram is very bright.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. K. Murali
Dr. K. Murali


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