Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

Inspiration

Lung apices through bottom of mandible

Arterial Phase

Yes

25 sec.

Inspiration

Carina through occlusal plane

Venous Phase

N/A

N/A

N/A

N/A

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

160

Time (Rotation)

0.5 sec.

Average Acquisition Time

5-7 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: Coronal, sagittal, 45 degree right oblique, and 45 degree left oblique image reconstructions are also performed.

 

Reconstruction Parameters

Sagittal

Oblique (R)

Oblique (L)

Slice Thickness

 3 mm

3 mm

3 mm

Reconstruction Spacing

 3 mm

3 mm

3 mm

Reconstruction Algorithm

Br40 (3)

Br40 (3)

Br40 (3)

Window Width and Level

350/50

350/50

350/50

Reconstruction Comments: Coronal, sagittal, 45 degree right oblique, and 45 degree left oblique image reconstructions are also performed.

 

Contrast Parameters

Parameters

Contrast Type

Non-ionic

Contrast Volume

80 mL

Saline Flush

30 mL

Injection Rate

5 mL/sec.

Oral Contrast

N/A

Contrast Volume

N/A

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