Table 2:
Maximal skin dose of radiation (in mGy) and fluoroscopy time per procedure (in minutes), as a function of case type and date
| Case Type | Dates | Mean Radiation Dose, Frontal Plane, mGy | SD Radiation Dose Frontal Plane, mGy | Mean Radiation Dose, Lateral Plane, mGy | SD Radiation Dose, Lateral Plane, mGy | Mean Radiation Dose, Total, mGy | SD Radiation Dose, Total, mGy | Fluoroscopy Time, Frontal Plane, min | Fluoroscopy Time, Lateral Plane, min |
|---|---|---|---|---|---|---|---|---|---|
| All cases | 9/06–6/10 | 319 | 289.6 | 201.2 | 279.2 | 520.2 | 498.9 | 26.7 | 22.2 |
| 7/10–6/12 | 215.6 | 211.5 | 112.4 | 186.9 | 328 | 350.1 | 17.9 | 12.6 | |
| Diagnostic angiograms | All | 164.9 | 161.1 | 74.6 | 69.5 | 239.4 | 217.5 | 11.2 | 6.2 |
| 9/06–6/10 | 185.7 | 212.7 | 88 | 86.8 | 273.7 | 284.9 | 10.9 | 6.4 | |
| 7/10–6/12 | 150 | 109.1 | 65 | 52.2 | 215 | 148.6 | 11.4 | 6.1 | |
| Embolizations | All | 449.4 | 306 | 298.4 | 345 | 747.7 | 540.6 | 42.4 | 37.4 |
| 9/06–6/10 | 482.2 | 290.7 | 340.5 | 364.9 | 822.7 | 542.6 | 48.8 | 44.5 | |
| 7/10–6/12 | 430.5 | 303.1 | 267.2 | 343.9 | 697.7 | 531.8 | 34.5 | 28.8 |
Note:—SD indicates standard deviation (inter-case variability).