Acquisition Phase

Phase Included

Scan Delay

Respiration Phase

Anatomical Coverage

Non Contrast

Yes

N/A

Hold

Maxillary sinus through frontal sinus

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: Iso-centering the patient within the gantry is key to image quality. All scans are performed using the ALARA principle.

 

Technical Parameters

Parameters

kVp

Semi (ref. kV 120)

Effective mAs

CareDose

Quality Reference mAs

88

Time (Rotation)

1.0 sec.

Average Acquisition Time

5-7 sec.

Collimation

128 x 0.6 mm

Pitch Value

0.55

Scan Direction

Caudocranial

Comments:CareDose is used to reduce patient dose.

 

Reconstruction Parameters

Soft Tissue

Bone

Thin Data

Thin Data

Slice Thickness

 3 mm

3 mm

 0.75 mm

0.75 mm

Reconstruction Spacing

 3 mm

3 mm

 0.5 mm

0.5 mm

Reconstruction Algorithm

Hr38 (3)

Hr68 (3)

Hr38 (3)

Hr68 (3)

Window Width and Level

350/20

2500/500

350/20

2500/500

Reconstruction Comments: 

 

Reconstruction Parameters

Coronal

Sagittal

Coronal

Sagittal

Slice Thickness

2 mm

2 mm

2 mm

2 mm

Reconstruction Spacing

2 mm

2 mm

2 mm

2 mm

Reconstruction Algorithm

Hr38 (3)

Hr38 (3)

Hr68 (3)

Hr68 (3)

Window Width and Level

350/20

350/20

2500/500

2500/500

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.