Nasal Bones Positioning Flashcards
What IR is used for a parietoacanthial (waters method) nasal bones view?
10x12 portrait
What breathing technique is used for a parietoacanthial (waters method) nasal bones view?
Suspended respiration
What SID is used for a parietoacanthial (waters method) nasal bones view?
40” bucky
How is the patient positioned for a parietoacanthial (waters method) nasal bones view?
- Patient is prone/PA (upright is best)
- Chin on bucky/table
- Nose will be 3/4” from table/bucky
Where is the CR for a parietoacanthial (waters method) nasal bones view?
Exits acanthion
Where is the MSP & MML for a parietoacanthial (waters method) nasal bones view?
Perpendicular to IR
Where is the OML for a parietoacanthial (waters method) nasal bones view?
37-degrees w/ IR
What are the structures seen for a parietoacanthial (waters method) nasal bones view?
- Distance between the lateral border of skull and orbit equal on each side
- Petrous ridges below maxillary sinuses
- Demonstrates lateral displacement of fractures
- Include maxillae & frontal bone
What IR is used for a right/left lateral nasal bone view?
10x12 transverse
What breathing technique is used for a right/left lateral nasal bone view?
Suspended respiration
What SID is used for a right/left lateral nasal bone view?
40” tabletop
How is the patient positioned for a right/left lateral nasal bone view?
- Patient in RAO/LAO
- Head is in true lateral
- Support mandible to prevent rotation
Where is the MSP for a right/left lateral nasal bone view?
Parallel to IR
Where is the IP line for a right/left lateral nasal bone view?
Perpendicular to IR
Where is the IOML for a right/left lateral nasal bone view?
Parallel to transverse axis of IR & perpendicular to edge of IR
Where is the CR for a right/left lateral nasal bone view?
Perpendicular to bridge of nose 1/2” distal to nasion
What are the structures seen for a right/left lateral nasal bone view?
- Anterior nasal spine and frontonasal suture are seen
- No rotation of nasal bone
- Demonstrates the nasal bone closestto the IR, bilaterally
- Include glabella to the tip of nose
What IR is used for a PA axial (Caldwell Method) Nasal bone view?
10x12 IR portrait
What SID is used for a PA axial (Caldwell Method) Nasal bone view?
40” bucky
How many degrees is the CR angled for a PA axial (Caldwell Method) Nasal bone view?
15 caudal
Where is the CR for a PA axial (Caldwell Method) Nasal bone view?
Exits the nasion
How is the patient positioned for a PA axial (Caldwell Method) Nasal bone view?
- Patient is prone/PA (Upright is best)
- Forehead & nose against table/bucky
Where is the MSP & OML for a PA axial (Caldwell Method) Nasal bone view?
Perpendicular to IR
What breathing technique is used for a PA axial (Caldwell Method) Nasal bone view?
Suspended respiration
