Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | N/A | N/A | N/A | N/A |
Arterial Phase | Yes | Bolus triggered | Inspiration | Diaphragm through iliac artery bifurcation |
Venous Phase | Yes | 60 sec | Inspiration | Diaphragm through iliac artery bifurcation |
Delayed Phase | N/A | N/A | N/A | N/A |
Scan Comments: A delayed phase of approximately 3 minutes may be helpful to better visualize the suspected lesion. If both an abdomen and pelvis are ordered, the pelvis is imaged during the venous phase. All scans are performed using the ALARA principle. 3D post-processing is performed with this protocol. |
Technical Parameters | Parameters |
kVp | 120 |
Effective mAs | Use dose reduction software |
Care Dose Reference mAs | 290 |
Time (Rotation) | 0.5 sec |
Average Acquisition Time | 5-7 sec |
Collimation | 128 x 0.6mm |
Pitch Value | 0.6 |
Scan Direction | Craniocaudal |
Comments: Dose reduction software is used to reduce patient dose. |
Reconstruction Parameters | Soft Tissue | Thin Data | Thin Data | Lung |
Slice Thickness | 3 mm | 0.75 mm | 0.75 mm | 3 mm |
Reconstruction Spacing | 3 mm | 0.5 mm | 0.5 mm | 3 mm |
Reconstruction Algorithm | I40f (2) | I26f (2) | B20f | I70f (2) |
Window Width and Level | 410/10 | 410/10 | 410/10 | 1600/-500 |
Reconstruction Comments: |
Reconstruction Parameters | Coronal | Sagittal |
Slice Thickness | 3 mm | 3 mm |
Reconstruction Spacing | 3 mm | 3 mm |
Reconstruction Algorithm | I40f (2) | I40f (2) |
Window Width and Level | 410/10 | 410/10 |
Reconstruction Comments: |
Contrast Parameters | Parameters |
Contrast Type | Non-ionic |
Contrast Volume | 120 mL |
Saline Flush | N/A |
Injection Rate | 4-5 mL/sec |
Oral Contrast | H2O |
Contrast Volume | 1000 mL |
Comments: Bolus tracking is performed off the abdominal aorta using a 230 HU trigger setting. |