Figure 3.

What cardiologists know about dose of a test they prescribe and/ or perform daily. 2 out of 3 physicians underestimate of 100 to 500 times the dose of a cardiac scintigraphy. The dose is equivalent to 500 chest x rays with technetium sestamibi, and to more than 1000 chest x rays with thallium scan (modified from Correia et al, ref 28)