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

lung apices through the diaphragm to include the adrenal glands

Venous Phase

N/A

N/A

N/A

N/A

Delayed Phase

N/A

N/A

N/A

N/A

Scan Comments:  All scans are performed using the ALARA principle.

 

Technical Parameters

Parameters

kVp

120

Effective mAs

275

Time (Rotation)

0.5 sec

Average Acquisition Time

8-10 sec

Collimation

64 x 0.6mm

Pitch Value

0.8

Scan Direction

craniocaudal

Comments:  The Effective mAs is adjusted based on a patient’s body habitus.  In addition, CareDose could be used to limit patient dose with a quality reference mAs of 200.  This would maintain image quality while lowering patient dose.

 

Reconstruction Parameters

Soft Tissue

Thin Data

Lung

Slice Thickness

3mm

0.75mm

3mm

Reconstruction Spacing

3mm

0.5mm

3mm

Reconstruction Algorithm

B30f

B20f

B80f

Window Width and Level

550 / 50

550 / 50

1600 / -500

Reconstruction Comments: Coronal and sagittal recons are performed.

 

Contrast Parameters

Parameters

Contrast Type

Non ionic

Contrast Volume

100ml

Saline Flush

N/A

Injection Rate

4-5ml / sec

Oral Contrast

N/A

Contrast Volume

N/A

Comments: Bolus Trigger off the pulmonary trunk using a 150 HU trigger.

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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

lung apices through the diaphragm to include the adrenal glands

Venous Phase

N/A

N/A

N/A

N/A

Delayed Phase

N/A

N/A

N/A

N/A

Scan Comments:  All scans are performed using the ALARA principle.

 

Technical Parameters

Parameters

kVp

120

Effective mAs

275

Time (Rotation)

0.5 sec

Average Acquisition Time

8-10 sec

Collimation

64 x 0.6mm

Pitch Value

0.8

Scan Direction

craniocaudal

Comments:  The Effective mAs is adjusted based on a patient’s body habitus.  In addition, CareDose could be used to limit patient dose with a quality reference mAs of 200.  This would maintain image quality while lowering patient dose.

 

Reconstruction Parameters

Soft Tissue

Thin Data

Lung

Slice Thickness

3mm

0.75mm

3mm

Reconstruction Spacing

3mm

0.5mm

3mm

Reconstruction Algorithm

B30f

B20f

B80f

Window Width and Level

550 / 50

550 / 50

1600 / -500

Reconstruction Comments: Coronal and sagittal recons are performed.

 

Contrast Parameters

Parameters

Contrast Type

Non ionic

Contrast Volume

100ml

Saline Flush

N/A

Injection Rate

4-5ml / sec

Oral Contrast

N/A

Contrast Volume

N/A

Comments: Bolus Trigger off the pulmonary trunk using a 150 HU trigger.