Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

Inspiration

Limited to region of interest

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

100 / 140

Effective mAs

CareDose

Quality Reference mAs

270 / 209

Time (Rotation)

0.5 sec

Average Acquisition Time

9-10 sec

Collimation

32 x 0.6mm

Pitch Value

0.6

Scan Direction

Craniocaudal

Comments: Images are acquired using 100/140 kVp setting with a Sn filter. CareDose is used to reduce patient dose. The pitch value should remain below 1.0 to reduce any artifacts during post-processing.

 

Reconstruction Parameters

Soft Tissue

Bone

Thin Data

Thin Data

Slice Thickness

2 mm

2 mm

 0.75 mm

0.75 mm

Reconstruction Spacing

2 mm

2 mm

 0.5 mm

0.5 mm

Reconstruction Algorithm

D30f

B70f

B60f

Q30f

Window Width and Level

350/40

2500/500

2500/500

350/40

Reconstruction Comments: When generating mixed images, the DE composition is set to 0.5.

 

Reconstruction Parameters

Coronal

Sagittal

Spine Multi

Slice Thickness

2 mm

2 mm

2 mm

Reconstruction Spacing

2 mm

2 mm

2 mm

Reconstruction Algorithm

B70f

B70f

B70f

Window Width and Level

2500/500

2500/500

2500/500

Reconstruction Comments: When generating mixed images, the DE composition is set to 0.5.

 

Contrast Parameters

Parameters

Contrast Type

 Non-ionic

Contrast Volume

 120 mL

Saline Flush

 N/A

Injection Rate

 2-3 mL/sec

Oral Contrast

 N/A

Contrast Volume

 N/A

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