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

Abdomen to include dome of liver through pubic symphysis

Venous Phase

Yes

60 sec

Inspiration

Abdomen to include dome of liver 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 htis protocol.

 

Technical Parameters

Parameters

kVp

120

Effective mAs

CareDose

Care Dose Reference mAs

290

Time (Rotation)

0.5 sec

Average Acquisition Time

5-7 sec

Collimation

128 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

Slice Thickness

 3mm

 0.75mm

 3mm

Reconstruction Spacing

 3mm

 0.5mm

 3mm

Reconstruction Algorithm

 I40f

 I26f / B20f

 I70f

Window Width and Level

 410/10

410/10

 1600/-500

Reconstruction Comments: Coronal and sagittal image reconstructions are also performed.

 

Contrast Parameters

Parameters

Contrast Type

 Non ionic

Contrast Volume

 120ml

Saline Flush

 N/A

Injection Rate

 4-5ml/sec

Oral Contrast

 H2O or Volumen (Barium Sulfate Suspension)

Contrast Volume

 1350ml

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.