Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

N/A

N/A

N/A

N/A

Arterial Phase

Yes

Bolus triggered

Inspiration

Diaphragm through pubic symphysis

Venous Phase

Yes

60 sec.

Inspiration

Diaphragm through pubic symphysis

Delayed Phase

N/A

N/A

N/A

N/A

Scan Comments: All scans are performed using the ALARA principle. 3D post-processing is performed with this protocol.

 

Technical Parameters

Parameters

kVp

Care kV (ref. kV 120)

Effective mAs

CareDose

Quality Reference mAs

200

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.

 

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

4-5 mL/sec.

Oral Contrast

H2O and VoLumen (Barium Sulfate Suspension)

Contrast Volume

1350 mL

Comments:  Bolus tracking is performed off the abdominal aorta using a 230 HU trigger setting. For all CT Enterography patients, the following protocol is used regarding oral contrast administration:

  • 1st dose 450 mL of VoLumen (Drink slowly within the first 10 minutes).
  • 2nd dose 450 mL of VoLumen (10 minutes after 1st dose of VoLumen).
  • 3rd dose 450 mL of VoLumen (10 minutes after 2nd dose of VoLumen).
  • One cup of water immediately prior to scanning.