PUC positioning

Question 1

What is done differently for PUC?

Answer 1

1. patient seated for all views
2. patient is in neutral position (not “after class slump” or rigid posture)
3. patient head tilt stays, rotation does not

Question 2

PUC series in order

Answer 2

palmer lateral
AP
palmer APOM
nasium
base posterior/vertex

Question 3

SID PUC lateral cervical

Answer 3

72”

Question 4

film size PUC lateral cervical

Answer 4

10x12

Question 5

CR position PUC lateral cervical

Answer 5

through C1 TVP

Question 6

collimation PUC lateral cervical

Answer 6

collimate out eyes, but not C7 spinous process

Question 7

AP PUC cervical

Answer 7

same as routine cervical

Question 8

ID blocker for PUC APOM

Answer 8

down

Question 9

bucky placement for APOM

Answer 9

touching back fo the head and shoulder, patient is in neutral position

Question 10

tube tilt for APOM

Answer 10

5-15 degree cephalic tube tilt

Question 11

filter for APOM

Answer 11

filter out orbits

Question 12

why do we need a bucky tilt?

Answer 12

to visualize C1 while maintaining body’s neutrl position

minimize magnification distortion

Question 13

nasium SID

Answer 13

40”

Question 14

film size for nasium

Answer 14

8x10

Question 15

collimation for nasium

Answer 15

8x10

Question 16

ID blocker location for nasium

Answer 16

down

Question 17

bucky position for nasium

Answer 17

touching the back of the head and shoulders, patient is in neutral position

Question 18

tube tilt for nasium

Answer 18

caudal tilt determined by the lateral film and atlas plane line

Question 19

CR nasium

Answer 19

exiting the inferior tips of the mastoids

Question 20

filters for nasium

Answer 20

filter eyes

Question 21

base posterior SID

Answer 21

38-42”

Question 22

film size base poisterior

Answer 22

8x10

Question 23

collimation for base posterior

Answer 23

8x10 ID blocker down

Question 24

bucky placement for base posterior

Answer 24

bucky at 45 degrees

Question 25

patient positioning for base posterior

Answer 25

vertex to center of bucky

Question 26

CR base posterior

Answer 26

enters 1” behind chin, goes in front of EAM, exits vertex

Question 27

filter for base posterior

Answer 27

filter eyes

Question 28

which positions need a slight bucky tilt?

Answer 28

APOM

nasium

Question 29

which positions need a 45 degree bucky tilt?

Answer 29

BP/vertex

Question 30

which positions need a tube tilt? What kind of tube tilt?

Answer 30

AP- 15 cephalic
APOM 5-15 cephalic
nasium- 5-20 caudal

Question 31

which films do you filter out orbits?

Answer 31

APOM
nasium
BP/vertex

Question 32

differences in PUC lateral compared to routine lateral

Answer 32

PUC lateral- 
film size: 10x12
eliminate orbits
CR C1
seated
Routine lateral- 
film size: 8x10
orbits are included
CR C4
seated/standing

Question 33

ID blocker placement

Answer 33

Up: lateral, AP
down: APOM, nasium, BP/vertex

Question 34

PUC APOM vs APOM

Answer 34

PUC-
slight bucky tilt
seated
filterout orbits
don't collimate orbits
5-15 cephalic tube tilt
don't manipulate patient
APOM-
no bucky tilt
seated/standing
no orbit filter
collimate eyes
no tube tilt
manipulate to perfect image

Question 35

why do we take AP cervical in a PUC series?

Answer 35

opposing view of the lateral

check for pathology