Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | N/A | N/A | N/A | N/A |
Arterial Phase | N/A | N/A | N/A | N/A |
Venous Phase | Yes | 60 sec | Inspiration | Lung apices through the diaphragm to include both adrenal glands |
Delayed Phase | N/A | N/A | N/A | N/A |
Scan Comments: When staging or ruling out metastatic disease, the abdomen and pelvis are often included in the study. All scans are performed using the ALARA principle. |
Technical Parameters | Parameters |
kVp | 120 |
Effective mAs | Use dose reduction software |
Quality Reference mAs | 200 |
Time (Rotation) | 0.5 sec |
Average Acquisition Time | 5-7 sec |
Collimation | 128 x 0.6mm |
Pitch Value | 0.8 |
Scan Direction | Craniocaudal |
Comments: Dose reduction software is used to reduce patient dose. 100 kVp can be used for most average size patients which will significantly reduce patient dose. |
Reconstruction Parameters | Soft Tissue | Thin Data | Lung | Coronal |
Slice Thickness | 3 mm | 0.75 mm | 3 mm | 3 mm |
Reconstruction Spacing | 3 mm | 0.5 mm | 3 mm | 3 mm |
Reconstruction Algorithm | B30f | B20f | B80f | B30f |
Window Width and Level | 410/10 | 410/10 | 1600/-500 | 410/10 |
Reconstruction Comments: |
Reconstruction Parameters | Sagittal | ||
Slice Thickness | 3 mm | ||
Reconstruction Spacing | 3 mm | ||
Reconstruction Algorithm | B30f | ||
Window Width and Level | 410/10 | ||
Reconstruction Comments: |
Contrast Parameters | Parameters |
Contrast Type | Non-ionic |
Contrast Volume | 120 mL |
Saline Flush | N/A |
Injection Rate | 2-3 mL/sec |
Oral Contrast | Non-ionic solution |
Contrast Volume | 1000 mL |
Comments: Ideally, we like to wait 45 minutes after administering the oral contrast before scanning the patient when the abdomen is included to rule out metastatic disease. |