Table 1 Acquisition parameters on 16-row multidetector CT scan (Neuviz-Classic) for the regular full dose protocol (FDCT) and the modified ultra-low dose protocol (LDCT)
From: Submillisievert CT chest for COVID-19 patients in a rural hospital with limited resources
FDCT | LDCT | |
|---|---|---|
Tube kilovoltage (Kv) | 120 | 80 |
Current (mAs) | Automatic current modulation | Fixed: 15–50 |
Pitch | 1 | 1.5 |
Rotation speed | 0.78 s | 0.78 s |
Scan coverage | Full coverage of lung fields: neck base to upper abdomen | Strict coverage of lung fields. Skipping of lung apices or cul-de-sac is tolerated |
Image reconstruction (Kernel) | F20 (3 mm) and F70 (1.25 mm) | F20 (3 mm) and F70 (3 mm) |
Direction | Craniocaudal | caudocranial |