Table 3. Number of cardiac imaging procedures with radiation exposure (per 1000 enrollees per year).
| Total | MPI | CATH/PCI | ERNA/MUGA | CCT* | EP | |
|---|---|---|---|---|---|---|
| ALL | 60.3 | 34.7 | 21.6 | 1.8 | 1.0 | 1.3 |
| Age Groups | ||||||
| 18-34 | 7.1 | 4.5 | 1.6 | 0.4 | 0.1 | 0.4 |
| 35-44 | 31.6 | 19.9 | 9.2 | 1.3 | 0.6 | 0.7 |
| 45-54 | 76.4 | 44.0 | 27.6 | 2.2 | 1.3 | 1.4 |
| 55-64 | 147.3 | 81.5 | 56.8 | 3.6 | 2.1 | 3.3 |
| Gender | ||||||
| Male | 74.2 | 40.1 | 29.9 | 1.4 | 1.2 | 1.7 |
| Female | 47.7 | 29.7 | 14.1 | 2.1 | 0.8 | 0.9 |
| Men in Age Groups | ||||||
| 18-34 | 8.5 | 5.3 | 2.4 | 0.3 | 0.2 | 0.4 |
| 35-44 | 37.0 | 22.3 | 12.4 | 0.8 | 0.7 | 0.7 |
| 45-54 | 91.9 | 49.1 | 37.9 | 1.5 | 1.6 | 1.8 |
| 55-64 | 185.9 | 97.0 | 78.6 | 3.3 | 2.4 | 4.6 |
| Women in Age Groups | ||||||
| 18-34 | 5.7 | 3.8 | 0.9 | 0.5 | 0.1 | 0.4 |
| 35-44 | 26.7 | 17.8 | 6.2 | 1.7 | 0.4 | 0.6 |
| 45-54 | 62.5 | 39.3 | 18.4 | 2.8 | 1.1 | 1.0 |
| 55-64 | 111.4 | 67.2 | 36.5 | 3.9 | 1.8 | 2.0 |
| Service Market | ||||||
| Arizona | 55.4 | 29.6 | 22.7 | 1.4 | 0.2 | 1.5 |
| Dallas | 49.0 | 25.8 | 19.6 | 1.1 | 1.4 | 1.1 |
| Orlando | 81.6 | 47.6 | 30.0 | 1.5 | 1.3 | 1.3 |
| South Florida | 81.2 | 55.4 | 19.0 | 4.5 | 0.7 | 1.5 |
| Wisconsin | 47.5 | 24.4 | 20.0 | 0.9 | 0.9 | 1.3 |
Abbreviations: MPI, Myocardial perfusion imaging; CATH, cardiac catheterization; PCI, percutaneous coronary intervention; ERNA, equilibrium radionuclide angiogram; MUGA, multi-gated acquisition scan; EP, electrophysiologic procedures; CCT, cardiac computed tomography
*
Codes specific for cardiac computed tomography were available for two out of three years of this study (2006 and 2007).
p<0.001 for comparisons acrossage, sex, age-sex and service market categories.