Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

Inspiration

Entire T-spine to include mid C7 through mid L-1

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: IV contrast can be useful to evaluate swelling or abscess. All scans are performed using the ALARA principle.

 

Technical Parameters

Parameters

kVp

Care kV (ref. kV 120)

Effective mAs

CareDose

Care Dose Reference mAs

300

Time (Rotation)

1.0 sec

Average Acquisition Time

5-7 sec

Collimation

128 x 0.6mm

Pitch Value

0.8

Scan Direction

Craniocaudal

Comments: CareDose is successful in minimizing image noise particularly 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

 B30s

 B60s

 B70s

Window Width and Level

 350/40

 2500/500

 2500/500

Reconstruction Comments: Additionally, a soft tissue thin data set is performed using 0.75 mm x 0.5 mm slices, a B20s algorithm, and a window width and level of 350/40. Coronal and sagittal image reconstructions are also performed.

 

Contrast Parameters

Parameters

Contrast Type

 Non ionic

Contrast Volume

 100ml

Saline Flush

 N/A

Injection Rate

 2-3ml/sec

Oral Contrast

 N/A

Contrast Volume

 N/A

Comments:IV contrast is not routinely necessary, however, if warranted we use the above protocol.