Table 3.
Exposure parameters and radiographic technique for selected X‐ray examinations with median values and range (in parenthesis).
| Centers Selected for this Study | |||||
|---|---|---|---|---|---|
| Examination | UCH | OAUTHC | TDC | NHA | |
| Abdomen | Projection | AP | AP, PA | PA | |
| Tube voltage (kVp) | 80 (78–84) | 80 (80–80) | 81 (81–81) | ||
| mAs | 80 (60–90) | 85 (60–120) | 40 (40–40) | ||
| FFD (cm) | 90 (90–90) | 90 (90–90) | 100 (100–100) | ||
| FSD (cm) | 75 (72–75) | 74 (70–76) | 82 (82–82) | ||
| Antiscatter grids | Yes | Yes | Yes | ||
| Chest | Projection | PA | PA | PA | PA, LAT |
| Tube voltage (kVp) | 65 (60–84) | 110 (100–110) | 80 (75–90) | 73 (70–77) | |
| mAs | 12 (9–15) | 128 (90–200) | 39 (39–75) | 25 (20–32) | |
| FFD (cm) | 150 (150–150) | 150 (150–150) | 150 (150–150) | 150 (150–150) | |
| FSD (cm) | 133 (126–138) | 134 (126–138) | 135 (123–139) | 135 (126–138) | |
| Antiscatter grids | No | Yes | No | No | |
| LSI | Projection | AP, LAT | NA | AP, LAT | AP, LAT |
| Tube voltage (kVp) | 86 (70–93) | 80 (80–85) | 79 (77–81) | ||
| mAs | 150 (9–300) | 120 (75–150) | 36 (32–40) | ||
| FFD (cm) | 90 (90–100) | 90 (90–90) | 100 (100–100) | ||
| FSD (cm) | 72 (64–85) | 66 (58–76) | 78 (74–82) | ||
| Antiscatter grids | Yes | Yes | Yes | ||
| Pelvis | Projection | AP, LAT | NA | AP | AP |
| Tube voltage (kVp) | 80 (75–86) | 80 (75–85) | 76 (70–81) | ||
| mAs | 75 (45–120) | 120 (60–120) | 33 (25–40) | ||
| FFD (cm) | 90 (90–100) | 90 (90–90) | 100 (100–100) | ||
| FSD (cm) | 76 (73–83) | 75 (73–77) | 84 (81–87) | ||
| Antiscatter grids | Yes | Yes | Yes | ||
| PNS | Projection | PA, LAT | NA | PA | NA |
| Tube voltage (kVp) | 70 (55–90) | 80 (80–80) | |||
| mAs | 53 (18–90) | 120 (120–120) | |||
| FFD (cm) | 90 (90–90) | 90 (90–90) | |||
| FSD (cm) | 78 (70–88) | 68 (68–68) | |||
| Antiscatter grids | Yes | Yes | |||
| Skull | Projection | AP, LAT | NA | NA | AP, LAT |
| Tube voltage (kVp) | 74 (65–80) | 70 (66–73) | |||
| mAs | 53 (30–90) | 18 (16–20) | |||
| FFD (cm) | 90 (90–90) | 100 (100–100) | |||
| FSD (cm) | 76 (72–80) | 89 (88–90) | |||
| Antiscatter grids | Yes | Yes | |||
Notes: ; ; ; ; ; .