Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

Inspiration

Lung apices through the diaphragm to include both adrenal glands

Arterial Phase

N/A

N/A

N/A

N/A

Venous Phase

N/A

N/A

N/A

N/A

Delayed Phase

N/A

N/A

N/A

N/A

Scan Comments: This is a low radiation dose protocol that is used for screening purposes. A high resolution flash spiral mode can be used to improve scan speed and limit breathing artifact if the patient is short of breath. All scans are performed using the ALARA principle.

 

Technical Parameters

Parameters

kVp

Care kV (ref. kV 100)

Effective mAs

CareDose

Care Dose Reference mAs

60

Time (Rotation)

0.5 sec

Average Acquisition Time

5-7 sec

Collimation

128 x 0.6mm

Pitch Value

1.0

Scan Direction

Craniocaudal

Comments: 100 kVp can be used with a reduced CareDose quality reference mAs to minimize patient dose.

 

Reconstruction Parameters

Soft Tissue

Thin Data

Lung

Hi Res

Slice Thickness

 3 mm

0.75 mm

3 mm

1 mm

Reconstruction Spacing

 3 mm

0.5 mm

3 mm

10 mm

Reconstruction Algorithm

I30f (3)

I26f (3)

I70f (3)

I70f (3)

Window Width and Level

410/10

410/10

1600/-500

1600/-500

Reconstruction Comments: 

 

Reconstruction Parameters

Coronal

Sagittal

Slice Thickness

 3 mm

3 mm

Reconstruction Spacing

 3 mm

3 mm

Reconstruction Algorithm

I30f (3)

I30f (3)

Window Width and Level

410/10

410/10

Reconstruction Comments: 

 

Contrast Parameters

Parameters

Contrast Type

N/A

Contrast Volume

N/A

Saline Flush

N/A

Injection Rate

N/A

Oral Contrast

N/A

Contrast Volume

N/A

Comments: IV contrast is not typically necessary for this exam.