Acquisition Phase | Phase Included | Scan Delay | Respiration Phase | Anatomical Coverage |
Non Contrast | Yes | N/A | Inspiration | Carina through the apex of the heart |
Arterial Phase | N/A | N/A | N/A | N/A |
Venous Phase | N/A | N/A | N/A | N/A |
Delayed Phase | N/A | N/A | N/A | N/A |
Scan Comments: Flash spiral mode is used for calcium scoring on all patients with heart rates up to 70 bpm. For patients with heart rates greater than 70 bpm, prospective sequential imaging is used instead. All scans are performed using the ALARA principle. | ||||
Technical Parameters | Parameters |
kVp | 120 |
Effective mAs | Use dose reduction software |
Care Dose Reference mAs | 120 |
Time (Rotation) | 0.28 sec |
Average Acquisition Time | 1-2 sec |
Collimation | 128 x 0.6mm |
Pitch Value | 3.4 |
Scan Direction | Craniocaudal |
Comments: Dose reduction software is used to reduce patient dose. | |
Reconstruction Parameters | Soft Tissue | Soft Tissue Open Field | Thin Data Open Field | Lung |
Slice Thickness | 3mm | 3mm | 0.75 mm | 3mm |
Reconstruction Spacing | 3mm | 3mm | 0.5 mm | 3mm |
Reconstruction Algorithm | B35f | B30f | B20f | B80f |
Window Width and Level | 350/50 | 410/10 | 410/10 | 1600/-500 |
Reconstruction Comments: The reconstruction field of view is limited to 33.2cm using the flash spiral scan mode. | ||||
Contrast Parameters | Parameters |
Contrast Type | N/A |
Contrast Volume | N/A |
Saline Flush | N/A |
Injection Rate | N/A |
Oral Contrast | N/A |
Contrast Volume | N/A |
Comments: IV contrast is not necessary for this exam. | |