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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Difference between Thallium Stress Test and Coronary Angiography

My mother is of age 58 and she does not smoke, has never suffered a heart attack, never complained of chest pain but her stress test is positive. We are advised of Thallium Stress Test. Can you please advise what is the difference between Thallium Stress Test and Coronory angiography? Also, should I go for these tests since my mother is reluctant to do those since she is fit and fine right now? Bhavesh Mehta.
Mon, 8 Sep 2014
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Pulmonologist 's  Response
Thanks for your question on HCM. Both tests are different. Thallium stress test is non invasive test and it detects viability of myocardium, in simple words it gives you idea about your heart muscle weather live or dead. It will not give any idea about coronaries and the percentage of blockage. Angiography is invasive procedure (day care) which gives you clear cut idea about coronaries and its blockage. It will also tell you about collateral circulation formed or not. So in my opinion if your mother s stress test is positive go for angiography. It is invasive procedure but will give you all the answers about you mother s cardiac status.
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Difference between Thallium Stress Test and Coronary Angiography

Thanks for your question on HCM. Both tests are different. Thallium stress test is non invasive test and it detects viability of myocardium, in simple words it gives you idea about your heart muscle weather live or dead. It will not give any idea about coronaries and the percentage of blockage. Angiography is invasive procedure (day care) which gives you clear cut idea about coronaries and its blockage. It will also tell you about collateral circulation formed or not. So in my opinion if your mother s stress test is positive go for angiography. It is invasive procedure but will give you all the answers about you mother s cardiac status.