Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | Yes | N/A | Inspiration | Lung apices through the diaphragm to include both adrenal glands |
Arterial Phase | N/A | N/A | N/A | N/A |
Venous Phase | N/A | N/A | N/A | N/A |
Delayed Phase | N/A | N/A | N/A | N/A |
Scan Comments: If IV contrast is indicated, venous phase imaging is performed using a scan delay based on the patient’s age, weight, and body habitus. All scans are performed using the ALARA principle. |
Technical Parameters | Parameters |
kVp | Care kV (ref. kV 120) |
Effective mAs | CareDose |
Care Dose Reference mAs | 80 |
Time (Rotation) | 0.28 sec |
Average Acquisition Time | 1-2 sec |
Collimation | 128 x 0.6mm |
Pitch Value | 3.0 |
Scan Direction | Craniocaudal |
Comments: CareDose is used to limit patient exposure. |
Reconstruction Parameters | Soft Tissue | Thin Data | Lung |
Slice Thickness | 3mm | 0.75mm | 3mm |
Reconstruction Spacing | 3mm | 0.5mm | 3mm |
Reconstruction Algorithm | I30f | I30f | I70f |
Window Width and Level | 410/10 | 410/10 | 1600/-500 |
Reconstruction Comments: Additionally, a high resolution 0.75mm x 0.5mm recon is performed using an I70f reconstruction algorithm and a window width and level of 1600/-500. Coronal and sagittal image reconstructions are also performed. |
Contrast Parameters | Parameters |
Contrast Type | Non ionic |
Contrast Volume | Weight based |
Saline Flush | N/A |
Injection Rate | 1.5-3ml/sec |
Oral Contrast | N/A |
Contrast Volume | N/A |
Comments: IV contrast is not routinely necessary, however, if warranted we use the above protocol. |