TABLE 1.
Technique Parameter Options and Ranges for the Digital Mammography Systems Used in the American College of Radiology Imaging Network (ACRIN) Digital Mammographic Imaging Screening Trial (DMIST)
| Manufacturer | Model | Target | Filtration | kVp Range | mAs Range |
|---|---|---|---|---|---|
| Fischer Imaging | SenoScan | W-Re | Al | 20–45 (22–39) | 18–52, 80–230 mA; (18–49, 80–217 mA) |
| Fujifilma | 5000D (CR) | Mo | Mo | (24–30) | (18–417) |
| Mo | Rh | (26–32) | (56–240) | ||
| Rh | Rh | (30–31) | (88–247) | ||
| GE Healthcare | Senographe 2000D | Mo | Mo | 22–35 (22–33) | 4–400 (21–387) |
| Mo | Rh | 22–40 (26–31) | 4–400 (58–399) | ||
| Rh | Rh | 25–49 (26–32) | 4–320 (28–317) | ||
| Hologic (CCD or Selenia) | Fiber Optic-CCD Array | Mo | Mo | 20–35 (24–32) | 3–600 (35–489) |
Note—For ranges, the first listing is the theoretic range provided by the manufacturer, the ranges in parentheses are ranges of parameters used in ACRIN DMIST. W-Re = tungsten-rhenium, Al = aluminum, Mo = molybdenum, Rh = rhodium.
a
Automatic exposure control was used on existing mammography systems with Fujifilm CR cassettes. Density control was adjusted to approximately equalize dose between screen-film mammography and CR.