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

60 sec.

Inspiration

Aortic arch through Circle of Willis

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

Quality Reference mAs

116

Time (Rotation)

1.0 sec.

Average Acquisition Time

10-12 sec.

Collimation

128 x 0.6 mm

Pitch Value

0.8

Scan Direction

Caudocranial

Comments: CareDose is used to reduce patient dose and improve image quality, specifically in the shoulder region.

 

Reconstruction Parameters

Soft Tissue

Bone

Thin Data

Coronal

Slice Thickness

 3 mm

3 mm

 0.75 mm

3 mm

Reconstruction Spacing

 3 mm

3 mm

 0.5 mm

3 mm

Reconstruction Algorithm

Br40 (3)

Br62 (3)

Br36 (3)

Br40 (3)

Window Width and Level

350/50

2500/500

350/50

350/50

Reconstruction Comments: 

 

Reconstruction Parameters

Sagittal

Slice Thickness

 3 mm

Reconstruction Spacing

 3 mm

Reconstruction Algorithm

Br40 (3)

Window Width and Level

350/50

Reconstruction Comments: 

 

Contrast Parameters

Parameters

Contrast Type

Non-ionic

Contrast Volume

80-100 mL

Saline Flush

N/A

Injection Rate

2-3 mL/sec.

Oral Contrast

N/A

Contrast Volume

N/A

Comments: Preferably, we will inject the right arm to limit contrast artifact.