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Sinuses
Question | Answer |
---|---|
What is the proper patient position for a Lateral Sinuses? | Interpupillary line is perpendicular to IR; midsagittal plane of head parallel to IR; adjust neck so that IOML is perpendicular to front edge of IR. |
What anatomy is demonstrated on an SMV Sinuses? | Sphenoid, ethmoid & part of maxillary sinuses. |
What is the proper patient position for a PA Waters Sinuses? | Chin against IR; MML is perpendicular to IR; OML will form a 37 degree angle to plane of IR. |
What is the proper patient position for an SMV Sinuses? | Neck extended & head back until IOML parallel to IR. |
Where should you center for a Lateral Sinuses? | CR is perpendicular to IR; enters zygoma, midway between outer canthus & EAM. |
What anatomy is demonstrated on a PA Caldwell Sinuses? | Frontal & ethmoid sinuses; petrous pyramids in LOWER 1/3 of orbits. |
Where should you center for a PA Waters Sinuses? | CR is perpendicular to IR; exits acanthion. |
Where should you center for a PA Caldwell Sinuses? | CR is perpendicular to IR; exits nasion. |
What anatomy is demonstrated on a PA Waters Sinuses? | Maxillary sinuses; petrous pyramids inferior to maxillary sinuses. |
What position should the patient be in for a PA Caldwell Sinuses? | Head adjusted so that OML forms a 15 degree angle with horizontal CR. |
Where should you center for an SMV Sinuses? | CR is perpendicular to IR; enters 1.5"-2" inferior to mandibular symphysis, midway between mandibular rami. |
What anatomy is demonstrated on a Lateral Sinuses? | All 4 paranasal sinuses; frontal, maxillary, ethmoid, and sphenoid. |