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Fig. 6. Peripheral Angiography: equivalent doses received by interventionists A( white boxplot) and B( gray boxplot) in eye lens, thyroid, chest, abdomen, hands and feet. Fig. 7. Peripheral Angioplasty: equivalent doses received by interventionists A( white boxplot) and B( gray boxplot) in eye lens, thyroid, chest, abdomen, hands and feet.
4.1 Coronary angioplasty
The higher levels of exposure occurred in coronary |
angioplasty( Fig. 4), where the X-ray tube performs a |
more significant number of exposures in the left anterior |
oblique |
projection. |
This |
X-ray |
tube |
position |
causes |
interventionists |
to |
position |
themselves |
frontally |
to |
the |
primary beam. |
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Statistical differences in these procedures occurred because the scattered beam is inhomogeneous, resulting in different exposure intensities for the body regions. In general, interventionist B’ s exposure levels were lower due to the distance from the professional to the X-ray tube. Interventionist A is located at approximately 0.5 m, while B is at 1.0 m. Nevertheless, the eye lens of interventionist B was the region with the highest presented exposure for this professional.