Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | N/A | N/A | N/A | N/A |
Arterial Phase | Yes | bolus trigger | inspiration | Abdomen to include dome of liver through iliac artery bifurcation. |
Venous Phase | Yes | 60 sec | inspiration | Abdomen to include dome of liver 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 is ordered the pelvis is imaged during the venous phase. All scans are performed using the ALARA principle. |
Technical Parameters | Parameters |
kVp | 120 |
Effective mAs | 300 |
Time (Rotation) | 0.5 sec |
Average Acquisition Time | 10-12 sec |
Collimation | 64 x 0.6mm |
Pitch Value | 0.8 |
Scan Direction | craniocaudal |
Comments: The Effective mAs is adjusted based on a patient’s body habitus. In addition, dose reduction software can be used to maintain image quality while lowering patient dose. |
Reconstruction Parameters | Soft Tissue | Thin Data | Lung |
Slice Thickness | 3mm | 0.75mm | 3mm |
Reconstruction Spacing | 3mm | 0.5mm | 3mm |
Reconstruction Algorithm | B30F | B20F | B80F |
Window Width and Level | 410/10 | 410/10 | 1600/-500 |
Reconstruction Comments: Coronal and sagittal image reconstructions are also performed. |
Contrast Parameters | Parameters |
Contrast Type | Non ionic |
Contrast Volume | 120ml |
Saline Flush | N/A |
Injection Rate | 3-5ml/sec |
Oral Contrast | H2O |
Contrast Volume | 1000ml |
Comments: Bolus triggering is used with a trigger of 200 HU. |
Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | N/A | N/A | N/A | N/A |
Arterial Phase | Yes | bolus trigger | inspiration | Abdomen to include dome of liver through iliac artery bifurcation. |
Venous Phase | Yes | 60 sec | inspiration | Abdomen to include dome of liver 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 is ordered the pelvis is imaged during the venous phase. All scans are performed using the ALARA principle. |
Technical Parameters | Parameters |
kVp | 120 |
Effective mAs | 300 |
Time (Rotation) | 0.5 sec |
Average Acquisition Time | 10-12 sec |
Collimation | 64 x 0.6mm |
Pitch Value | 0.8 |
Scan Direction | craniocaudal |
Comments: The Effective mAs is adjusted based on a patient’s body habitus. In addition, dose reduction software can be used to maintain image quality while lowering patient dose. |
Reconstruction Parameters | Soft Tissue | Thin Data | Lung |
Slice Thickness | 3mm | 0.75mm | 3mm |
Reconstruction Spacing | 3mm | 0.5mm | 3mm |
Reconstruction Algorithm | B30F | B20F | B80F |
Window Width and Level | 410/10 | 410/10 | 1600/-500 |
Reconstruction Comments: Coronal and sagittal image reconstructions are also performed. |
Contrast Parameters | Parameters |
Contrast Type | Non ionic |
Contrast Volume | 120ml |
Saline Flush | N/A |
Injection Rate | 3-5ml/sec |
Oral Contrast | H2O |
Contrast Volume | 1000ml |
Comments: Bolus triggering is used with a trigger of 200 HU. |