Table 2.
CT imaging parameters.
| Scan Parameter | Siemensa (n = 18) | GEb (n = 8) |
|---|---|---|
| Kilovolts | 100–120 | 100–120 |
| mAs/mA | Automatic | Automatic |
| Pitch | 0.9–1.6 | 0.6–1.1 |
| Collimation (mm) | 0.6–2.5 | 0.6–1.15 |
| Field of view | Based on patient size | Based on patient size |
| Matrix size (pixels) | 512 × 512 | 512 × 512 |
| Section thickness (mm) | 2.5–5 | 2–5 |
| Section interval (mm) | 1.25–5 | 2–5 |
a
Siemens scanners included SOMATOM Definition AS+, Sensation Cardiac 64, Definition Flash, Volume Zoom, and Biograph 6.
b
GE scanners included VCT/Ultra/16/QX/I, Discovery CT750 HD, Lightspeed Ultra, Lightspeed QX/i.