Head and Neck

Indication	Brief description	Slice thickness and reconstruction kernel	Further details of contrast timing/explanation of what the radiographers do	Abbreviation
ENT cancer staging chest	CT chest (contrast)	1 mm B30f, 1 mm B70f both 0.7 mm increment.	65 seconds	CT chest + c
Recurrent laryngeal nerve palsey	CT neck to carina		ENT neck protocol - place info here Need to cover the course of the recurrent laryngeal nerve from skull base to under arch of aorta on left and subclavian on right	ENT neck from skull base to carina
Parathyroid scans			Scanned at 25 seconds
Laryngeal cancer			ENT neck, during free breathing, no breath hold, no coughing, no swallowing, or saying "eeeeee", so vocal cords are not opposed
TMJ disease?	Use cone beam CT for diagnosis. Consider MR for soft tissue or disc visualisation	N/A	N/A	N/A
TMJ disease? When cone beam out of action	TMJs only without including orbits	1 mm slice width with 1 mm or less increment. B30s, and H30s or equivalent kernel and bony recons	N/A	TMJs only (diagnostic scan)
Cause of TMJ ankylosis. When cone beam out of action	TMJs and whole mandible	1 mm slice width with 1 mm or less increment. B30s, and H30s or equivalent kernel and bony recons	N/A	TMJs including mandible
TMJ implant planning	For those patients requiring TMJ implants	1 mm slice width with 1 mm or less increment. H30s or equivalent kernel, not edge enhancing kernel	Mouth in occlusion, neutral position, no gantry tilt. X-care or equivalent orbital dose reduction. Further details here: TMJ Concepts protocol	CT TMJ planning