UT Southwestern Department of Radiology Protocol Name: CT Temporal Bone With Contrast Protocol Epic Button: Temporal Bone With Orderable Name: CT TEMPORAL BONE/EAR W IV CONTRAST # Acquisitions: 1 Indications: Mass/infection 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): 3 Volume (mL): 70 Last Change: 11/21/2019 Regime: Notes: IV Access: Power injection: 20g or larger strongly prefered (if 22g use reduce rate to 2.5 mL/sec) Notes: Saline Test Injection: 10 sec @ injection rate Route: Notes: FOV: Whole head Coverage: Above posterior fossa thru mastoids (all of semicircular canals) Series Name: Contrast Phase Timing: 45 seconds Contrast N/A Same Same Do not repeat CT scan, recon soft tissue from 1st acquisition Special Instructions: Primary Axial Recon: 0.5 mm Other Recons: 0.5 mm cor coned down (10 mm FOV) each side 2 mm, volume 2 mm cor coned down (10 mm FOV) each side 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: Link to Contrast Information Last Review: 1/18/2019 *Dual Energy Siemens: *Dual Energy Philips: * If dual energy or spectral CT is available