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 | entire neck to include 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 |
Care Dose Reference mAs | 225 |
Time (Rotation) | 1.0 sec |
Average Acquisition Time | 5-7 sec |
Collimation | 64 x 0.6mm |
Pitch Value | 0.55 |
Scan Direction | craniocaudal |
Comments: Dose reduction software is used to reduce patient dose and improve image quality specifically in the shoulder region. | |
Reconstruction Parameters | Soft Tissue | Thin Data | Bone |
Slice Thickness | 3mm | 0.75mm | 3mm |
Reconstruction Spacing | 3mm | 0.5mm | 3mm |
Reconstruction Algorithm | B30f | B20f | B70f |
Window Width and Level | 350 / 50 | 350 / 50 | 2500 / 500 |
Reconstruction Comments: Coronal and sagittal image reconstructions are also performed. | |||
Contrast Parameters | Parameters |
Contrast Type | Non ionic |
Contrast Volume | 80-100ml |
Saline Flush | N/A |
Injection Rate | 2-3ml / sec |
Oral Contrast | N/A |
Contrast Volume | N/A |
Comments: Preferably we will inject the right arm to limit contrast artifact. | |
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 | entire neck to include 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 |
Care Dose Reference mAs | 225 |
Time (Rotation) | 1.0 sec |
Average Acquisition Time | 5-7 sec |
Collimation | 64 x 0.6mm |
Pitch Value | 0.55 |
Scan Direction | craniocaudal |
Comments: Dose reduction software is used to reduce patient dose and improve image quality specifically in the shoulder region. | |
Reconstruction Parameters | Soft Tissue | Thin Data | Bone |
Slice Thickness | 3mm | 0.75mm | 3mm |
Reconstruction Spacing | 3mm | 0.5mm | 3mm |
Reconstruction Algorithm | B30f | B20f | B70f |
Window Width and Level | 350 / 50 | 350 / 50 | 2500 / 500 |
Reconstruction Comments: Coronal and sagittal image reconstructions are also performed. | |||
Contrast Parameters | Parameters |
Contrast Type | Non ionic |
Contrast Volume | 80-100ml |
Saline Flush | N/A |
Injection Rate | 2-3ml / sec |
Oral Contrast | N/A |
Contrast Volume | N/A |
Comments: Preferably we will inject the right arm to limit contrast artifact. | |