Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

N/A

N/A

N/A

N/A

Arterial Phase

Yes

40 sec

Inspiration

2cm above the umbilicus through the lesser trochanter of the femur

Venous Phase

N/A

N/A

N/A

N/A

Delayed Phase

N/A

N/A

N/A

N/A

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

 

Technical Parameters

Parameters

kVp

120

Effective mAs

CareDose

Quality 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

Thin Data

Coronal

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

I40f (2)

I26f (2)

B20f

I40f (2)

Window Width and Level

410/10

410/10

410/10

410/10

Reconstruction Comments: 

 

Reconstruction Parameters

Sagittal

Slice Thickness

 3 mm

Reconstruction Spacing

 3 mm

Reconstruction Algorithm

I40f (2)

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

 N/A

Contrast Volume

 N/A

Comments: Oral contrast is not necessary. A fixed scan delay of 40 seconds is used to ensure adequate vessel opacification.