Conversation: The conversation between human and AI assistant.
[|Human|] My father aged about 69 years had angioplasty with two stents about 18 months ago and now he is advised Thallium stress test. He was having 3-4 operations for piles earlier and another operation for urinal problems and also for getting his intestine coming out from anus.Whether CT angiogrpahy is an alternative for the same?
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. No, both these tests, CT angiography and thallium stress test are different. These are not alternative to each other. Basically both are done for different purposes. CT angiography is done tomorrow know if there is any coronary artery blockage or not. Thallium stress test is done to know the amount of viable heart tissue, heart function and heart contractility. So thallium stress test is more useful to see heart functions while CT angiography is done to rule out coronary artery disease. Both are not alternative. Hope I have solved your query. I will be happy to help you further. Wishing good health to your father. Thanks.