Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

Inspiration

Kidneys only

Arterial Phase

Yes

Bolus triggered

Inspiration

Diaphragm through iliac crest

Venous Phase

Yes

60 sec.

Inspiration

Diaphragm through iliac crest

Delayed Phase

Yes

3 min.

Inspiration

Entire kidneys through pubic symphysis

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

Quality Reference mAs

200

Time (Rotation)

0.5 sec.

Average Acquisition Time

5-7 sec.

Collimation

128 x 0.6 mm

Pitch Value

0.6

Scan Direction

Craniocaudal

Comments: CareDose is used to reduce patient dose. The quality reference mAs can be lowered on non-contrast and delayed images (147 mAs).

 

Reconstruction Parameters

Soft Tissue

Thin Data

Thin Data

Lung

Slice Thickness

 3 mm

0.75 mm

 0.75 mm

3 mm

Reconstruction Spacing

 3 mm

0.5 mm

 0.5 mm

3 mm

Reconstruction Algorithm

Br40 (3)

Br36 (3)

Br36

Bl57 (3)

Window Width and Level

410/10

410/10

410/10

1600/-500

Reconstruction Comments: 

 

Reconstruction Parameters

Coronal

Sagittal

Slice Thickness

 3 mm

3 mm

Reconstruction Spacing

 3 mm

3 mm

Reconstruction Algorithm

Br40 (3)

Br40 (3)

Window Width and Level

410/10

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

Contrast Volume

1000 mL

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