Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | Yes | N/A | N/A | Bass of skull through vertex |
Arterial Phase | N/A | N/A | N/A | N/A |
Venous Phase | Yes | 2-5 min | N/A | Bass of skull through vertex |
Delayed Phase | N/A | N/A | N/A | N/A |
Scan Comments: Iso-centering the patient within the gantry is key to image quality. All scans are performed using the ALARA principle. | ||||
Technical Parameters | Parameters |
kVp | 120 |
Effective mAs | Use dose reduction software |
Care Dose Reference mAs | 365 |
Time (Rotation) | 1.0 sec |
Average Acquisition Time | 6-8 sec |
Collimation | 128 x 0.6mm |
Pitch Value | 0.55 |
Scan Direction | Caudocranial |
Comments: Dose reduction software is used to reduce patient dose. Decreasing the rotation time or increasing the pitch will allow for faster scan times when patient motion is a concern. | |
Reconstruction Parameters | Soft Tissue | Soft Tissue | Bone | Thin Data |
Slice Thickness | 5 mm | 5 mm | 5 mm | 0.75 mm |
Reconstruction Spacing | 5 mm | 5 mm | 5 mm | 0.5 mm |
Reconstruction Algorithm | H30s | J30s (3) | H60s | H20s |
Window Width and Level | 100/30 | 100/30 | 2500/500 | 100/30 |
Reconstruction Comments: 3D MPR’s can be performed to correct positioning. | ||||
Contrast Parameters | Parameters |
Contrast Type | Non-ionic |
Contrast Volume | 120 mL |
Saline Flush | N/A |
Injection Rate | 2-3 mL/sec |
Oral Contrast | N/A |
Contrast Volume | N/A |
Comments: N/A | |