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 | Aortic arch through Circle of Willis |
Delayed Phase | N/A | N/A | N/A | N/A |
Scan Comments: All scans are performed using the ALARA principle. | ||||
Technical Parameters | Parameters |
kVp | 120 |
Effective mAs | Use dose reduction software |
Quality Reference mAs | 185 |
Time (Rotation) | 1.0 sec |
Average Acquisition Time | 10-12 sec |
Collimation | 128 x 0.6mm |
Pitch Value | 0.8 |
Scan Direction | Caudocranial |
Comments: Dose reduction software is used to reduce patient dose and improve image quality, specifically in the shoulder region. | |
Reconstruction Parameters | Soft Tissue | Bone | Thin Data | Coronal |
Slice Thickness | 3 mm | 3 mm | 0.75 mm | 3 mm |
Reconstruction Spacing | 3 mm | 3 mm | 0.5 mm | 3 mm |
Reconstruction Algorithm | B30s | B70s | B20s | B30s |
Window Width and Level | 350/50 | 2500/500 | 350/50 | 350/50 |
Reconstruction Comments: | ||||
Reconstruction Parameters | Sagittal |
Slice Thickness | 3 mm |
Reconstruction Spacing | 3 mm |
Reconstruction Algorithm | B30s |
Window Width and Level | 350/50 |
Reconstruction Comments: | |
Contrast Parameters | Parameters |
Contrast Type | Non-ionic |
Contrast Volume | 80-100 mL |
Saline Flush | N/A |
Injection Rate | 2-3 mL/sec |
Oral Contrast | N/A |
Contrast Volume | N/A |
Comments: Preferably, we will inject the right arm to limit contrast artifact. | |