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RT-RP

PRACTICE FOR LABORATORY

QuestionAnswer
Skull: PA Projection Position: Nose & forehead on IR; OML perpendicular to IR CR: 0° (Perpendicular to IR) RP: Glabella
Skull: Lateral Projection Position: True lateral; IPL perpendicular to IR CR: Perpendicular to IR RP: 2 inches superior to EAM
Skull: AP Axial (Towne) Position: OML/IOML; OML perp (chin depressed) or IOML perp (chin extremely depressed) CR: OML: 30° caudad; IOML: 37° caudad RP: 2½ inches above the glabella
Skull: PA Axial (Caldwell) Position: Forehead & nose on IR; OML perpendicular CR: 15° caudad (standard) or 25–30° caudad RP: Nasion
Skull: Submentovertical (SMV) Position: Vertex of skull on IR; IOML parallel to IR CR: Perpendicular to IOML RP: 1½ inches inferior to mandibular symphysis
Skull: PA Axial (Haas Method) Position: Forehead & nose on IR; OML perpendicular CR: 25° cephalad RP: 1½ inches above nasion
Orbits: Lateral Projection Position: True lateral; IPL perpendicular CR: Perpendicular RP: Zygoma
Orbits: Parietoacanthial (Waters) Position: Chin on IR; MML perpendicular; OML 37° CR: Perpendicular RP: Acanthion
Orbits: PA Axial (Caldwell) Position: Forehead & nose on IR; OML perpendicular CR: 15° caudad RP: Nasion
Orbits: Modified Waters Position: Chin on IR; LML perpendicular; OML 55° CR: Perpendicular RP: Acanthion
Orbits: Parieto-orbital (Rhese) Position: Cheek, chin, nose on IR; Rotate head 37° CR: Perpendicular RP: Mid-portion of downside orbit
Facial: Parietoacanthial (Waters) Position: MML perpendicular; OML 37°; Chin on IR CR: Perpendicular RP: Acanthion
Facial: Modified Waters Position: LML perpendicular; OML 55°; Chin on IR CR: Perpendicular RP: Acanthion
Facial: PA Axial (Caldwell) Position: Forehead & nose; OML perpendicular CR: 15° caudad RP: Nasion
Facial: Lateral Projection Position: True lateral; IPL perpendicular CR: Perpendicular RP: Zygoma
Zygomatic: SMV Projection Position: Vertex on IR; IOML perpendicular to CR CR: Perpendicular to IOML RP: 1½" below mandibular symphysis
Zygomatic: Tangential Projection Position: Vertex on IR; Rotate 15° toward affected side CR: Perpendicular to IOML RP: Arch of interest
Zygomatic: AP Axial (Modified Towne) Position: OML perp (chin depressed) or IOML perp CR: 30° caudad (OML) or 37° caudad (IOML) RP: 1" above glabella
Mandible: Axiolateral Oblique Position: True lateral; Rotate 30° (body), 45° (mentum), or 10-15° (mandible) CR: 25° cephalad RP: Mandibular region of interest
Mandible: PA / PA Axial Position: Forehead & nose on IR; OML perpendicular CR: PA: Perpendicular; PA Axial: 20-25° cephalad RP: PA: Junction of lips; PA Axial: Acanthion
Mandible: AP Axial (Towne) Position: OML or IOML perpendicular CR: 35° caudad (OML) or 42° caudad (IOML) RP: Glabella
TMJ: AP Axial (Towne) Position: OML or IOML perpendicular CR: 35° caudad (OML) or 42° caudad (IOML) RP: 3" superior to nasion (hairline)
TMJ: Axiolateral (Schuller) Position: True lateral; IPL perpendicular CR: 25-30° caudad RP: ½" anterior & 2" superior to US EAM
TMJ: Axiolateral Oblique (M. Law) Position: IPL perpendicular; Rotate 15° closer to IR CR: 15° caudad RP: ½" anterior & 2" superior to US EAM
Nasal: Lateral Projection Position: True lateral; IPL perpendicular CR: Perpendicular RP: ½" inferior to nasion
Nasal: Parietoacanthial (Waters) Position: Chin on IR; MML perpendicular (OML 37°) CR: Perpendicular RP: Acanthion
Paranasal: PA Axial (Caldwell) Position: Forehead & nose on IR; OML perp 15° CR: Horizontal (Perpendicular to floor) RP: Nasion
Paranasal: Parietoacanthial (Waters) Position: MML perp; OML 37°; Chin on IR CR: Perpendicular to IR (Horizontal) RP: Acanthion
Paranasal: Lateral Projection Position: True lateral; IPL perpendicular CR: Perpendicular to IR RP: Zygoma
Paranasal: Open Mouth Waters Position: Chin on IR; OML 37° (mouth open) CR: Horizontal; Perpendicular to IR RP: Acanthion
Mastoid: Axiolateral Oblique (Original Law) Position: IPL perpendicular; Rotate face 15° toward IR CR: 15° caudad RP: Exits downside mastoid process
Mastoid: Axiolateral Oblique (Modified Law) Position: IPL perpendicular to IR CR: 15° caudad and 15° anteriorly RP: 2 inches posterior and superior to uppermost EAM; exits downside mastoid
Mastoid: Axiolateral (Schuller Method) Position: True lateral; IPL perpendicular CR: 25° caudad RP: Exits at EAM
Mastoid: Axiolateral Oblique (Stenver Method) Position: Forehead, cheek, and nose on IR (45° rotation) CR: 12° cephalad RP: ¾" posterior and ½" inferior to upside EAM
Mastoid: Axiolateral Oblique (Arcelin Method) Position: Face away from side examined 45° (Brachy 54°, Dolicho 40°) CR: 10° caudad RP: Temporal area
Mastoid: Axiolateral Oblique (Mayer Method) Position: MSP 45°; Depress chin; OML parallel to IR CR: 45° caudad RP: Exit EAM
Mastoid: AP Axial (Towne) Position: OML or IOML perpendicular CR: 30° caudad (OML) or 37° caudad (IOML) RP: 2½" above nasion (hairline)
Mastoid: SMV Projection Position: Vertex parallel to IR; IOML parallel to IR CR: Perpendicular to OML RP: Sagittal of the throat
Mastoid: Hirtz Method Position: Hyperextend neck CR: 5° cephalad RP: Midway between EAMs; 1 inch anterior to EAM
Skull Projections Skull: PA Projection Skull: Lateral Projection Skull: AP Axial (Towne) Skull: PA Axial (Caldwell) Skull: Submentovertical (SMV) Skull: PA Axial (Haas)
Orbits Projections Orbits: Lateral Projection Orbits: Parietoacanthial (Waters) Orbits: PA Axial (Caldwell) Orbits: Modified Waters Orbits: Parieto-orbital (Rhese)
Facial Projections Facial Bone: Parietoacanthial (Waters) Facial Bone: Modified Waters Facial Bone: PA Axial (Caldwell) Facial Bone: Lateral Projection
Zygomatic Projections Zygomatic: SMV Projection Zygomatic: Tangential Projection Zygomatic: AP Axial (Modified Towne)
Mandible Projections Mandible: Axiolateral Oblique Mandible: PA / PA Axial Mandible: AP Axial (Towne)
Tmj Projections TMJ: AP Axial (Towne) TMJ: Axiolateral (Schuller) TMJ: Axiolateral Oblique (Modified Law)
Nasal Projections Nasal: Lateral Projection Nasal: Parietoacanthial (Waters)
Paranasal Projections Paranasal: PA Axial (Caldwell) Paranasal: Parietoacanthial (Waters) Paranasal: Lateral Projection Paranasal: Open Mouth Waters
Mastoid Projections 1-4 Mastoid: Axiolateral Oblique (Original Law) Mastoid: Axiolateral Oblique (Modified Law) Mastoid: Axiolateral (Schuller Method) Mastoid: Axiolateral Oblique (Stenver Method)
Mastoid Projections 5-9 Mastoid: Axiolateral Oblique (Arcelin Method) Mastoid: Axiolateral Oblique (Mayer Method) Mastoid: AP Axial (Towne) Mastoid: SMV Projection Mastoid: Hirtz Method
Created by: user-2031323
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