Facial/Orbits Projections

For lateral facial which lines are perpendicular to the IR?

IPL

For lateral facial which lines are parallel?

IOML & MSP

CR enter for lateral facial bone?

Zygomatic bone

For lateral facial bone CR is directed halfway between

EAM & outer canthus

Difference between Lateral facial & lateral skull?

Field size & CR

Which facial bone is/are shown?

All facial bones

Positioning for SMV zygomatic arches

Neck hyperextended; vertex touches bucky

For SMV zygomatic arches which lines are perpendicular to the IR?

MSP

For SMV zygomatic arches which lines are parallel to the IR?

IOML & IPL

For SMV zygomatic arches CR is perpendicular to which line?

IOML

Where does CR enter for SMV zygomatic arches?

MSP @ 1” posterior to outer canthus

What anatomy is demo’d in SMV zygomatic arches?

Bilateral zygomatic arches

PA Axial (exaggerated caldwell) what should be touching the Bucky/IR?

Forehead & nose

For PA Axial Exaggerated Caldwell which lines are perpendicular to IR?

MSP & OML

For PA Axial Exaggerated Caldwell which lines are parallel to IR?

IPL

Angulation of CR in PA Axial (Exaggerated Caldwell)

30 degrees caudad

Where does CR exit for PA Axial (Exaggerated Caldwell)?

Mid orbits

PP’s located for PA Axial (Exaggerated Caldwell)?

Below inferior margin of orbits

Which foramen is best demo’d in Exaggerated caldwell?

Foramen rotundum

For Parietoacanthial (waters) facial what part touches touches the buck/IR?

Chin

For Parietoacanthial (waters) facial which lines are perpendicular to IR?

MSP & MML

For Parietoacanthial (waters) facial which lines are parallel to IR?

IPL

Relationship between OML & IR for Parietoacanthial (waters) facial

37 degrees

Structures shown in Parietoacanthial (waters) facial?

Orbits, maxillae, zygomatic bones, gonions, bony nasal septum

PP’s located where for Parietoacanthial (waters) facial?

below maxillary sinuses

For lateral nasal bones which lines are perpendicular to IR?

IPL

For lateral nasal bones which lines are parallel to IR?

IOML & MSP

Where does CR enter for lateral nasal bones?

1/2” distal to nasion

Landmark entrance point for lateral nasal bones

bridge of nose

Whats unique about lateral nasal bones

both sides need to be imaged

For lateral nasal bone what anatomy must be included in collimated field?

Frontonasal suture & anterior nasal spine

Patient position for AP Axial (Mod. Towne) Zygos

Flex neck; tuck chin

AP Axial (Mod. Towne) zygos which lines are perpendicular?

OML & MSP

AP Axial (Mod. Towne) zygos which lines are parallel?

IPL

Preferred CR angle for Modified Towne Zygos

30 caudad

CR enter for Modified Towne Zygos?

Glabella

Alternative positioning line and angle used for Mod Towne Zygos

IOML; 37 degrees caudad

What anatomy is demo’d in Mod. Town Zygos?

Bilateral Zygos

Position of patient for Acanthioparietal (Reverse Waters) facial

Supine

For Acanthioparietal (Reverse Waters) facial which lines are perpendicular to IR?

MSP & MML(if possible)

For Acanthioparietal (Reverse Waters) facial which lines are parallel to IR?

IPL

When should you use Acanthioparietal (Reverse waters) facial?

Trauma

CR enter for Acanthioparietal (Reverse Waters) facial

acanthion

PP’s located where for Acanthioparietal (Reverse Waters) facial

below maxillary sinuses

In Acanthioparietal (Reverse Waters) facial the facial bones will appear

magnified

What should be touching bucky/IR for Parieto Orbital Oblique (Rhese) orbits

Chin, cheek, nose

Relationship between MSP & IR for POO (Rhese) orbits

53 degrees

For POO (rhese) orbits which lines are perpendicular to IR?

AML

Why is POO (rhese) orbits performed?

Optic foramen

Why is Tangential zygomatic arch performed?

depressed fx; flat cheeks

Positioning for Tangential zygomatic arch

Rotate 15 degrees toward & tilt 15 degrees away

Relationship between MSP & IR for Tangential zygomatic arch?

15 degrees

For Tangential Zygomatic arch, CR is perpendicular to which positioning line?

IOML

CR enter where for Tangential Zygomatic Arch?

Zygo of interest 1” posterior to the outer canthus

Anatomy demo’d for Tangential zygomatic arch?

Zygomatic arch

What touches Bucky/IR for Parietoacanthial (Mod. Waters) Orbits?

Chin

For Parietoacanthial (Mod. Waters) Orbits which lines are perpendicular to IR?

MSP

For Parietoacanthial (Mod. Waters) Orbits, which lines are parallel to IR?

IPL

Relationship between OML & IR for Parietoacanthial (Mod. Waters) Orbits

50 degrees

CR enters for Parietoacanthial (Mod. waters) Orbits?

perpendicular; MSP & midorbits

Positioning for PA Axial (Caldwell) facial

Forehead & nose

Which lines are perpendicular to IR for Caldwell facial

OML & MSP

Which lines are parallel to the IR for Caldwell facial?

IPL

CR angulation for Caldwell facial

15 degrees caudad

CR exits for Caldwell facial?

nasion

PP is located where Caldwell's facial

lower 1/3rd of orbits

Lateral Orbits which lines are perpendicular to IR?

IPL

Lateral Orbits which lines are parallel?

IOML & MSP

CR enter for Lateral orbits

perpendicular through outer canthus

facial bone is best demonstrated in Lateral orbits

Lacrimal

Difference between Lateral sinuses & Lateral orbits

Sinuses aren’t full of air in this image

For Parietoacanthial (Mod. Waters) facial what touches bucky/IR?

Chin

For Parietoacanthial (Mod. Waters) facial which lines are perpendicular to IR?

MSP

For Parietoacanthial (Mod. Waters) facial which lines are parallel?

IPL

Relationship between OML & IR for Parietoacanthial (Mod. Waters) facial

55 degrees

Pathology best demo’d in for Parietoacanthial (Mod. Waters) facial

Blowout fx

PP’s located for Parietoacanthial (Mod. Waters) facial

midway through maxillary sinuses

For Parietoacanthial (Mod. Waters) facial, the facial bones will appear with less

angulation