sinuses projections

Question 1

part/position for lateral sinuses

Answer 1

upright only; RAO, LAO; MSP parallel, IP perpendicular, and IOML perpendicular to anterior border of collimation

Question 2

central ray and SID for lateral sinuses

Answer 2

perpendicular, 40

Question 3

centering for lateral sinuses

Answer 3

1/2 - 1 inch posterior to the outer canthus

Question 4

collimation for lateral sinuses

Answer 4

1 inch beyond the tip of the nose, 3 inches above the nasion to the occlusal plane (tips of the upper incisors) (8x10)

Question 5

marking for lateral sinuses

Answer 5

lead marker of side closest, anterior

Question 6

method name for PA sinuses

Answer 6

caldwell

Question 7

part/position for PA caldwell sinuses

Answer 7

upright, OML is 15 degrees from perpendicular, must be upright for fluid levels

Question 8

central ray and SID for PA caldwell sinuses

Answer 8

perpendicular, 40

Question 9

centering for PA caldwell sinuses

Answer 9

MSP, exits the nasion

Question 10

collimation for PA sinuses

Answer 10

1 inch beyond lateral shadows, top of the head to the occlusal plane (8x10)

Question 11

marking for PA sinuses

Answer 11

right marker; right side

Question 12

method name for parietoancanthial sinuses

Answer 12

waters

Question 13

part/position for parietoacanthial sinuses

Answer 13

upright, OML forms an angle of 37 degrees from the plane of the IR

Question 14

central ray and SID for parietoacanthial sinuses

Answer 14

perpendicular, 40

Question 15

centering for parietoacanthial sinuses

Answer 15

MSP, exiting the acanthion

Question 16

collimation for parietoacanthial sinuses

Answer 16

1 inch beyond lateral shadows, top of the heal to the occlusal plane (8x10)

Question 17

marking for parietoacanthial sinuses

Answer 17

right marker, right side

Question 18

another method name for upright parietoacanthial sinuses

Answer 18

open-mouth waters

Question 19

part/position for open- mouth parietoacanthial sinuses

Answer 19

upright facing bucky, OML forms an angle of 37 degrees from the plane of the IR, have patient open their mouth as wide as possible

Question 20

central ray and SID for open-mouth parietoacanthial sinuses

Answer 20

perpendicular, 40

Question 21

centering for open mouth parietoacanthial sinuses

Answer 21

MSP, exiting the acanthion

Question 22

collimation for open-mouth parietoacanthial sinuses

Answer 22

1 inch beyond lateral shadows, top of the head to the occlusal plane (8x10)

Question 23

method name for upright submentovertex

Answer 23

schuller “full basal”

Question 24

part/position for SMV

Answer 24

upright or seated, extend head back until the top of their head touches the bucky, IOML parallel to the IR

Question 25

central ray and SID for SMV

Answer 25

horizontal and perpendicular, 40

Question 26

centering for SMV

Answer 26

MSP, midway between the angles of the mandible, passes through a point 3/4 inch anterior to the level of the EAM

Question 27

collimation for SMV

Answer 27

1/2 inch to inch beyond the tip of the nose and on the lateral borders of the cranium (8x10)

Question 28

marking for SMV

Answer 28

right marker, right side