Doctor insights on:
Thallium Stress Test
Stress affects most people in some way. Acute (sudden, short-term) stress leads to rapid changes throughout the body. Almost all body systems (the heart and blood vessels, immune system, lungs, digestive system, sensory organs, and brain) gear up to meet perceived danger. These stress responses could prove beneficial in a critical, life-or-death situation. Over time, however, repeated stressful situations put a strain on the body that may contribute to physical and psychological problems. Chronic (long-term) stress can have real health consequences and should be addressed like any other health concern. Fortunately, research is showing that lifestyle changes and stress-reduction techniques can help people learn ...Read more
See below: A stress thallium test uses a nuclear tracer to visualize blood flow during exercise or chemical stress in a person unable to exercise. The purpose of the test is to uncover artery narrowings that can impede flow when an increased demand for flow is required as in"stress." the test can also give information about the heart's pumping power called the ejection fraction. ...Read more
Heart Disease Test: Thallium stress test is a nuclear imaging method that shows how well blood flows into the heart muscle, both at rest and during activity. Normal blood flow would "light up" on images. The stress portion is either through exercise, like on a treadmill, or a drug can be injected for those who can't tolerate regular exercise. This causes the heart to behave as if the subject were exercising. ...Read more
I have undergone cabg n after 2 yrs angiolpasty with 1 stem. Know again after 2 years facing disconfort n advise stress thallium test. Should I go for?
Yes: With known history of coronary artery disease and prior angioplasty and coronary bypass surgery, any new chest pain/discomfort should be evaluated and frequently a nuclear stress test can be helpful to figure out if a chest pain syndrome is related to coronary ischemia- "blockage" or obstructive narrowing of a coronary artery or CABG graft. Thallium or technetium based nuclear testing can be used ...Read more
Checks heart functio: Thallium is a radioactive (minimally) isotope that is used to study the pumping capability of the heart, usually after heart attack or prior to surgery in someone with cardiac disease. Sometimes it's done simply to ensure proper cardiac capability in someone with risk factors or prior heart issues. It involves mild to increasing exercise to "stress" the heart and assess function under effort! ...Read more
Very common: A thallium stress test is an extremely common procedure that allows the doctor to monitor the electrical activity in your heart while you walk on a treadmill with a continuous ekg (usually takes 10min) and to take "before and after pics" of your heart. Pictures are taken before and after walking to see if there is an area of low blood flow, which suggests blockage in a coronary artery. ...Read more
Just you: Wear comfortable clothes and walking shoes (assuming it is an "exercise" not "chemical" stress). Don't eat or drink anything after midnight. Don't smoke for at least 4 hours before the test, and ask your doctor if you should adjust your morning medications (particularly Insulin if diabetic or a beta blocker — which is a blood pressure medication). ...Read more
Stress with Thallium: A radioactive isotope of thallium, often 201, is injected iv. Heart muscle cells pump some radioactive thallium inside; less if blood flow past the cells is limited. Thus, cells (or scar tissue) with low blood flow intake less thallium & emit less radiation. A gamma camera detects some radiation which exits the body. Only severe, not mild, artery disease complications can be detected. ...Read more
No: Thallium is a low frequency, low penetration radiation. Nothing to worry about. ...Read more
No: I have had many of these and other than fatigue on the treadmill, no problems. ...Read more
Thallium: It is safe for a well treated epileptic to have a thallium perfusion study. ...Read more
Depends on symptoms: Acute coronary syndromes, complete w chest pain, ECG changes, and biomarker elevation are an indication for catheterization and possible stent implantation without additional testing. Short of acute symptoms, noninvasive testing (such as myocardial perfusion imaging, or stress echocardiography) help define a clinical need to assess for a physiologically significant coronary obstruction. ...Read more
Which test is more accurate a cardiac petscan or thallium stress test? Why is one or the other chosen by cardiologists?
PET over thallium:
Both tests use nuclear isotopes. The isotope used in pet scans has better visualization/resolution characteristics than thallium which is a spect study (like technetium). Tissue viability is also superior in pet as compared to thallium.
The problem is usually that pet is done in fewer cardiology systems than spect (technetium or thallium)
of the spect scans, technetium is superior to thallium. ...Read more
Left sided chest burning / tearing sensation when spontaneously exert or walk fast. Neg thallium stress test in 2009 and 2013. Echo showed mvp. Ideas?
Inner left arm ache. Two weeks now. Armpit to hand. Tricep aches as well. Normal thallium stress test 04/09 and pet st 01/13. Cardiac? Nerve? Thanks
Ache: Your ache is highly unlikely to be cardiac, far more likely to be musculoskeletal. ...Read more
Thallium dipyridamole stress test with the radioactive chemical given is it true that it is dangerous to be near babies and children after procedure?
I have a mild heart attack 2 years ago. I recovered wonderfully I have follow up stress test with thallium. The test came back great. however, I have b?
Question cut off: Please re-submit and clarify. Thanks.Get a more detailed answer ›
After angiogram, bypass surgery was suggested as 75% blockage in all arteries. Another doctor suggested thallium stress test. Will it help?
CAD stress test: It may or may not depending on symptoms and a number of variables including specific sites of stenoses ...Read more
The journal of emergency medicine
volume 43, issue 6, pages e439-e442, december 2012
this patient was twice detained by homeland security agents and searched after he activated radiation detectors at a seaport security checkpoint. The radioactive half-life of tl-201 is 73.1h, however, reported periods of extended personal radiation have been seen as far out as 61 days. ...Read more
Are thallium stress tests and echocardiogram stress tests equal in their accuracy? Why would one be prescribed over the other?
Imaging stress tests: Perfusion stress tests and echo stress tests are roughly similar in their sensitivity and specificity. The experience and expertise of the performing lab/team is more important than general test results. Some labs are far better with one than the other test. What information is desired is also critical as they show different information sets. ...Read more
None: Thallium provides no risk to any human as it is non-toxic and is eliminated from the body within a few hours after the test is completed. It is simply a tracer chemical for blood flow. ...Read more
Tomorrow I'm getting a nuclear stress test w cardiolite. Worried about side effects and reaction to the thallium or whatever they use. Should I worry?
Isotopes quite safe: Dyes are not used during nuclear stress tests. Trace radioactive isotopes are but there are no significant reactions to these minute doses used considering the thousands of tests done around the globe daily unless one has a history of being allergic to the thallium or cardiolite. ...Read more
Thallium: Thallium poisoning is extemely rare. Radioactive thallium used in the test is thallium 201 and is used in a small dose that dissipates with about a 69 to 73 hr halftime. The radiation is generally no problem unless it is additive in a person who has had lot of radiation exposure. ...Read more
What do you recommend if I had 2 stress test done an exercise one and a thallium one on both my heart rate dropped wha could cause it?
Thallium?: You said "thallium" but perhaps you meant adenosine or lexiscan? — these two agents are used to perform a stress test in which you don't have to exercise, thus in contrast to your first one. Both agents can cause the heart rate to drop as a side effect which has no prognostic significance. ...Read more
My husband 51yoa, went in to ER for chest pains on sept 4. Triopinins were all negative. Stress test done following day. Said they only injected thallium but he tacked out at 144, lips turned blue was brought to icu for 2 days, throwing pvc's and fast hea
Sorry: Siunds serious & scary. I'm sure the cardiologist will share all their thoughts with you. If you had a specific question it was cut off... Please repost. ...Read more