Anatomy
What is maxilla?
The CR exits here for a modified parietoacanthial (modified Waters) projection of the facial bones.
What is the acanthion?
A Waters projection of the sinuses demonstrates the petrous pyramids in the maxillary sinuses. Fix the positioning error.
Increase extension of the head and neck slightly.
This is the most common modality for trauma imaging of the skull and facial bones.
What is CT?
The angle difference between the OML and IOML
What is 7-8 degrees?
This bone helps form the hard palate.
What is the maxilla?
In addition to the palatine bone
This positioning line is placed perpendicular to the plane of the IR for a true lateral facial bones?
What is the IPL?
A patient has a possible nasal fracture. List the 3 views which would best diagnose the fracture.
This modality is superior in demonstrating Paget's disease.
What is Nuclear Medicine?
The number of facial bones that make up the bony orbit.
What is 4?
Lacrimal, maxillary, zygoma, palatine
The CR must be centered here for the AP Axial (Towne method) projection for the mandible.
Wat is 1" superior to glabella?
The ideal amount of rotation to demonstrate the body of the mandible for the axiolateral oblique projection.
30 degrees towards the IR
A tripod fracture affects this bone.
What is the zygoma?
This line connects the outer canthi of the patient's eyes.
What is the IPL or interpupillary line?
What is the maxillary sinuses?
To demonstrate the petrous ridges below the maxillary sinuses, the patient must be positioned with this line perpendicular to the IR.
What is the MML?
A lateral radiograph of the facial bones reveals the mandibular rami are not superimposed. What caused this?
Rotation
This fracture of the orbit is caused by a blow to the eye that strikes the eye straight on.
What is blowout fracture?
This radiographic landmark is at the same level as the EAM.
What is the petrous ridge or petrous pyramid?
The ethmoid sinuses are housed in this portion of the ethmoid bone.
What is the lateral masses?
What is the lower, outer quadrant of the orbit?
This sinus is projected through the oral cavity with the parietoacanthial transoral projection.
Sphenoid sinus
These facial bone projections would demonstrate TMJ syndrome.
What are open and closed axiolateral projections of the TMJ?
The point of union between both halves of the mandible.
What is the symphysis menti?