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

Patient dependent

Inspiration

Region of interest

Delayed Phase

N/A

N/A

N/A

N/A

Scan Comments: All scans are performed using the ALARA principle.

 

Technical Parameters

Parameters

kVp

Care kV (ref. kV 120)

Effective mAs

CareDose

Care Dose Reference mAs

125

Time (Rotation)

1.0 sec

Average Acquisition Time

3-5 sec

Collimation

128 x 0.6mm

Pitch Value

0.8

Scan Direction

Craniocaudal

Comments: CareDose is used to limit patient exposure. 

 

Reconstruction Parameters

Soft Tissue

Thin Data

Bone

Slice Thickness

3mm

1.0mm

3mm

Reconstruction Spacing

3mm

0.6mm

3mm

Reconstruction Algorithm

I30s

I30s

I70h

Window Width and Level

350/50

350/50

2500/500

Reconstruction Comments: Coronal and sagittal soft tissue image reconstructions are also performed.

 

Contrast Parameters

Parameters

Contrast Type

Non ionic

Contrast Volume

Weight based

Saline Flush

N/A

Injection Rate

1.5-3ml/sec

Oral Contrast

N/A

Contrast Volume

N/A

Comments: The scan delay is determined both in part by patient age, IV access, and injection rate.