Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

N/A

Limited to the 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:If IV contrast is warranted, venous phase imaging is routinely performed using a scan delay based on the patient’s age, weight, and body habitus. All scans are performed using the ALARA principle.

 

Technical Parameters

Parameters

kVp

100

Effective mAs

CareDose

Care Dose Reference mAs

150

Time (Rotation)

1.0 sec

Average Acquisition Time

3-4 sec

Collimation

192 x 0.6mm

Pitch Value

0.8

Scan Direction

Craniocaudal

Comments:CareDose is used to reduce patient dose.

 

Reconstruction Parameters

Soft Tissue

Thin Data

Bone

Slice Thickness

 3 mm

 0.75 mm

 3 mm

Reconstruction Spacing

 3 mm

 0.5 mm

 3 mm

Reconstruction Algorithm

 Br32

 Br69

Br69

Window Width and Level

410/10

1776/176

1776/176

Reconstruction Comments: Additionally, a soft tissue thin data set is also performed using 0.75 mm x 0.5 mm slices with a Br32 algorithm and a window width and level of 410/10. Coronal and sagittal image reconstructions are also performed. 3D VRT reconstructions are also performed.

 

Contrast Parameters

Parameters

Contrast Type

Non-ionic

Contrast Volume

Weight based

Saline Flush

N/A

Injection Rate

1-3 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.