| It relies on the difference in distribution of a radioactive tracer, such as thallium, at rest and after stress. |
| My advice is to undergo another test called stress thallium, which will show the amount of involvement of the heart muscle with ischemia. |
| The patient then has a stress thallium test or, at the preference of the cardiologist, heart catheterisation or coronary angiography. |
| We're assured that there is a secure supply of thallium coming from cylotrons in a number of different centres. |
| A cardiac exam using thallium will result in an approximately 30 millisieverts dosimetry, which is quite high. |
| I have to say that images with thallium are pretty good in today's world because the equipment has made a lot of progress. |
