Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

Inspiration

Kidneys only

Arterial Phase

YesBolus triggered

Inspiration

Diaphragm through iliac crest

Venous Phase

Yes

60 sec.

Inspiration

Kidneys only

Delayed Phase

Yes

5-7 min.

Inspiration

Diaphragm through iliac crest

Scan Comments: Scan ranges are limited to a specific area of interest to avoid unnecessary patient dose. 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

Care Dose Reference mAs

200

Time (Rotation)

0.5 sec.

Average Acquisition Time

3-4 sec.

Collimation

192 x 0.6 mm

Pitch Value

0.6

Scan Direction

Craniocaudal
Comments: CareDose is used to reduce patient dose. The CareDose reference mAs can be lowered on non-contrast and delayed images.

 

Reconstruction Parameters

Soft Tissue

Thin Data

Lung

Slice Thickness

3 mm 0.75 mm3 mm

Reconstruction Spacing

3 mm0.5 mm3 mm

Reconstruction Algorithm

Br40Br36Bl57

Window Width and Level

410/10410/101600/-500
Reconstruction Comments: Coronal and sagittal image reconstructions are also performed.

 

Contrast Parameters

Parameters

Contrast Type

Non-ionic

Contrast Volume

120 mL

Saline Flush

N/A

Injection Rate

4-5 mL/sec.

Oral Contrast

H2O

Contrast Volume

1000 mL

Comments: Bolus tracking is performed off the abdominal aorta using a 230 HU trigger setting.