Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

N/A

Base of skull through vertex

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 is used when clinically indicated. All scans are performed using the ALARA Principle.

 

Technical Parameters

Parameters

kVp

120

Effective mAs

CareDose

Care Dose Reference mAs

275

Time (Rotation)

1.0 sec

Average Acquisition Time

3-5 sec

Collimation

128 x 0.6mm

Pitch Value

0.65

Scan Direction

Caudocranial

Comments: CareDose is used to limit patient exposure.

 

Reconstruction Parameters

Soft Tissue

Thin Data

Bone

Slice Thickness

5mm

1.0mm

3mm

Reconstruction Spacing

5mm

0.6mm

3mm

Reconstruction Algorithm

J30s / H30s

J30s

J70h

Window Width and Level

100/30

100/30

2500/500

Reconstruction Comments:  True axial MPR images are generated when patients are unable to be positioned correctly.

 

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 typically necessary for this exam.