Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | Yes | N/A | Inspiration | Lung apices through bottom of mandible |
Arterial Phase | Yes | 25 sec. | Inspiration | Carina through occlusal plane |
Venous Phase | N/A | N/A | N/A | N/A |
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 | 200 |
Time (Rotation) | 0.5 sec |
Average Acquisition Time | 5-7 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 | B30f | B60f | B20f | B30f |
Window Width and Level | 350/50 | 2500/500 | 350/50 | 350/50 |
Reconstruction Comments: Coronal, sagittal, 45 degree right oblique, and 45 degree left oblique image reconstructions are also performed. |
Reconstruction Parameters | Sagittal | Oblique (R) | Oblique (L) |
Slice Thickness | 3 mm | 3 mm | 3 mm |
Reconstruction Spacing | 3 mm | 3 mm | 3 mm |
Reconstruction Algorithm | B30f | B30f | B30f |
Window Width and Level | 350/50 | 350/50 | 350/50 |
Reconstruction Comments: Coronal, sagittal, 45 degree right oblique, and 45 degree left oblique image reconstructions are also performed. |
Contrast Parameters | Parameters |
Contrast Type | Non-ionic |
Contrast Volume | 80 mL |
Saline Flush | 30 mL |
Injection Rate | 5 mL/sec |
Oral Contrast | N/A |
Contrast Volume | N/A |
Comments: Preferably, we will inject the right arm to limit contrast artifact. |