Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | Yes | N/A | inspiration | scan range to include kidneys only |
Arterial Phase | Yes | bolus triggered | inspiration | scan range to include kidneys only |
Venous Phase | Yes | 60 sec | inspiration | scan range to include kidneys only |
Delayed Phase | Yes | 5 min | inspiration | scan range to include kidneys through bladder |
Scan Comments: For young patients when possible the venous phase imaging is not performed to reduce patient dose. 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. Dose reduction software can be used to maintain image quality while lowering patient dose. In addition, the dose can be lowered on noncontrast and delayed imaging to avoid unnecessary 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 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 tracking is used for arterial phase images using a trigger value of 200HU. |
Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | Yes | N/A | inspiration | scan range to include kidneys only |
Arterial Phase | Yes | bolus triggered | inspiration | scan range to include kidneys only |
Venous Phase | Yes | 60 sec | inspiration | scan range to include kidneys only |
Delayed Phase | Yes | 5 min | inspiration | scan range to include kidneys through bladder |
Scan Comments: For young patients when possible the venous phase imaging is not performed to reduce patient dose. 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. Dose reduction software can be used to maintain image quality while lowering patient dose. In addition, the dose can be lowered on noncontrast and delayed imaging to avoid unnecessary 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 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 tracking is used for arterial phase images using a trigger value of 200HU. |