Skull and Sinuses

Question 1

the space between the eyebrows

Answer 1

glabella

Question 2

outer corner of the eye

Answer 2

external canthus

Question 3

bony corner of the eye

Answer 3

infraorbital ridge

Question 4

ridge under the nose

Answer 4

acanthion

Question 5

line between pupils

Answer 5

interpupillary line

Question 6

routine views of the skull

Answer 6

right and left laterals
PA Caldwell’s
AP Towne’s (Axial)

Question 7

Patient position for lateral skull

Answer 7

PT in anterior oblique. interpupillary line is perpendicular to film

Question 8

CR for lateral skull

Answer 8

perpendicular to bucky - centered to a point 3/4” superior and 3/4” anterior to EAM

Question 9

anatomy visualized on lateral skull

Answer 9

parietal, sella turcica, frontal, paranasal sinuses, EAM, mastoid air cells, external occipital protuberance (EOP)

Question 10

PT position for PA Caldwell’s

Answer 10

PT frontal bone and nose touching bucky. orbitomeatal line is perpendicular to film

Question 11

CR for PA Caldwell’s Skull

Answer 11

CR is tilted 15 degrees caudal, exiting glabella

Question 12

anatomy visualized on PA Caldwell’s Skull

Answer 12

parietal, ORBITS, maxillary sinus, frontal, frontal sinus, ethmoid sinus, petrous ridge, nasal septum

Question 13

PT position for AP Towne’s (Axial)

Answer 13

PT occiput on bucky - median plane perpendicular to the film. infaorbitomeatal line is perpendicular to film.

Question 14

CR for AP Towne’s (Axial)

Answer 14

CR tiled 30 degress caudal, entering 2” above glabella

Question 15

anatomy viewed on AP Towne’s

Answer 15

parietal, occipital, PETROUS PYRAMIDS, FORAMEN MAGNUM

Question 16

routine views of paranasal sinuses

Answer 16

PA Caldwell’s (smaller film with lighter technique)
Lateral (smaller film with lighter technique)
PA Water’s
(Do all upright for air/fluid levels)

Question 17

PA Calwell’s Sinus film size

Answer 17

8x10 - lighter technique

Question 18

PT position for PA Caldwell’s Sinus

Answer 18

PT frontal bone and nose touching bucky. orbitomeatal line is perpendicular to film (same as skull)

Question 19

CR for PA Caldwell’s Sinus

Answer 19

CR is tilted 15 degrees caudal, exiting glabella (same as skull)

Question 20

Sinus view that shows all 4 sinuses at once

Answer 20

lateral

Question 21

PT position for PA Water’s

Answer 21

PT is PA, chin touching bucky
PT nose is approx 1/2” away from bucky
mentomeatal line parallel to the floor

Question 22

CR for PA Water’s

Answer 22

exits acanthion

Question 23

anatomy visualized on PA Water’s

Answer 23

orbits, frontal sinus, MAXILLARY SINUS, dens, foramen magnum, mandible

Question 24

suture that separates the temporal and perietal bones

Answer 24

squamosal