UT Southwestern Department of RadiologyProtocol Name: CT Temporal Bone Without

Protocol Epic Button: Temporal Bone WithoutOrderable Name: CT TEMPORAL BONE/EAR WO IV CONTRAST

# Acquisitions: 1

Indications: Cholesteatoma, implants, hearing loss. Refer to semicircular dehiscence protocol (Temporal Bone Dehiscence) if applicable.

CTDIvol < 80 mGy

Adult or Pediatric

Active Protocol

Oral Contrast:

UTSW H2O Variant:

Oral Effervescent Granules on Table?

UTSW:

Airway:

Volume(mL):

Other Contrast:

Rate (mL/sec): Volume (mL):

Last Change: 1/25/2019

Regime: Notes:

IV Access:

Notes:

Route:

Notes:

FOV: Whole head

Coverage: Above posterior fossa thru mastoids (all of semicircular canals)

Series Name: Noncontrast

Phase Timing:

Noncontrast

N/A

Same

Same

Do not repeat CT scan, recon soft tissue from 1st acquisition

SpecialInstructions:

Primary Axial Recon: 0.5 mm

Other Recons: 0.5 mm cor coned down (10mm FOV) each side

2 mm, volume

Algorithm: Bone Soft Tissue

MIP Recons:

Acquisition Protocol:

Links:

Other Notes:No habitus specific kVp adjustment.Gantry tilt: angle axials parallel to supra orbital rim and the skull base.

1 N/A

IV Contrast:

Last Review: 1/18/2019

*Dual EnergySiemens:

*Dual EnergyPhilips:

* If dual energy or spectral CT is available