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 iliac artery bifurcation

Venous Phase

Yes

60 sec

Inspiration

Abdomen to include dome of liver through iliac artery bifurcation

Delayed Phase

N/A

N/A

N/A

N/A

Scan Comments: If both an abdomen and pelvis is ordered, the pelvis is imaged during the venous phase. All scans are performed using the ALARA principle. 3D post-processing is performed with this 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

Contrast Volume

 1000ml

Comments: Bolus tracking is performed off the abdominal aorta using a 230 HU trigger setting. Adequate distention of the stomach with H2O is key to successfully visualizing the pancreatic head.