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Have blockage in heart, advised stress thallium test. No family history of heart problem. Should we do the test?

hii my father has been detected with blockage in heart after the tmt test...but the doctor has asked us to go for a stress thallium test to detect the percentage of block.he is a diabetic but has no family history of heart problem.please suggest should we go for the stress thallium test or can the tmt report determine the percent of blockage in heart,please help
Asked On : Wed, 13 Jun 2012
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Internal Medicine Specialist 's  Response
Hello Jagriti, thanks for giving us an opportunity to solve your doubts.
Diabetes is one of the biggest risk factors for ischemic heart disease which can be colloquially called as blockage in the vessels supplying the heart. With increasing age, hypertension, smoking, hyperlipidemia, the risk further increases. A positive TMT means your father is having Angina pectoris caused due to blockage of the coronary vessels. A nuclear stress test like a thallium scan is more specific and sensitive than TMT for reliably identifying the problem and the area of decreased regional blood flow. However, it cannot reliably determine the percentage of blockage. To determine the precentage of blockage, you will need an angiography or a noninvasive test like Cardiac MR or CT angiography.
Answered: Wed, 13 Jun 2012
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Internal Medicine Specialist Dr. Prasad Akole's  Response
Dear friend, welcome to HCM !
a positive TMT indicates that there is a blood supply problem to the heart , mostly due to a block in an artery to the heart.
it can not localise the block/ its degree.
you need an angiography for that ... diabetes is a risk factor for coronary disease. if creatinine is Ok , that can be done.
stress thalium is again a stress test.
your cardiologist is the best judge...
pl. get evaluated and keep me posted on the progress.
I hope I have satisfied your query. !

Answered: Tue, 24 Jul 2012
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