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

Lung apices through the diaphragm to include both adrenal glands

Delayed Phase

N/A

N/A

N/A

N/A

Scan Comments: When staging or ruling out metastatic disease, the abdomen and pelvis are often included in the study. All scans are performed using the ALARA principle.

 

Technical Parameters

Parameters

kVp

Care kV (ref. kV 120)

Effective mAs

CareDose

Quality Reference mAs

147

Time (Rotation)

0.5 sec

Average Acquisition Time

3-4 sec.

Collimation

192 x 0.6mm

Pitch Value

0.6

Scan Direction

Craniocaudal

Comments: CareDose is used to reduce patient dose. 100 kVp can be used for most average size patients which will significantly reduce patient dose.

 

Reconstruction Parameters

Soft Tissue

Thin Data

Lung

Coronal

Slice Thickness

 3 mm

0.75 mm

3 mm

3 mm

Reconstruction Spacing

 3 mm

0.5 mm

3 mm

3 mm

Reconstruction Algorithm

Br40 (3)

Br36 (3)

Bl57 (3)

Br40 (3)

Window Width and Level

410/10

410/10

1600/-500

410/10

Reconstruction Comments: 

 

Reconstruction Parameters

Sagittal

Slice Thickness

 3 mm

Reconstruction Spacing

 3 mm

Reconstruction Algorithm

Br40 (3)

Window Width and Level

410/10

Reconstruction Comments: 

 

Contrast Parameters

Parameters

Contrast Type

Non-ionic

Contrast Volume

120 mL

Saline Flush

N/A

Injection Rate

2-3 mL/sec.

Oral Contrast

Non-ionic solution

Contrast Volume

1000 mL

Comments:  Ideally, we like to wait 45 minutes after administering the oral contrast before scanning the patient when the abdomen is included to rule out metastatic disease.