PA axial sinus Flashcards
What is the method name for this image?
Caldwell
How should this PA Axial projection vary from the PA Axial projection of the cranium?
Chin is not tucked, no angle on tube, patient is angled
What should be in contact with the table/wall buckey?
Nose
How is the OML positioned in relationship to the CR?
at a 15 degree angle to CR
How should the patient be positioned for this image?
upright
How is the MSP in relationship to the IR?
perpendicular
What is the central ray location?
Exiting naseon
What is the central ray angle/direction?
Perpendicular
Which paranasal sinuses are best demonstrated in this image?
Frontal and ethmoid
How should the petrous ridges be demonstrated?
In bottom 1/3 of orbits
If the petrous ridges are demonstrated filling the orbits, what error occurred (if there is an error)?
Chin is tucked too much
If the petrous ridges are demonstrated below the inferior orbital margin, what error occurred (if there is an error)?
Chin was elevated too much