Multi-Angle Tmj Exposure (3 Angles Lateral) - Planmeca ProOne User Manual

11 TEMPOROMANDIBULAR JOINT EXPOSURE

11.2 Multi-angle TMJ exposure (3 angles lateral)

Child
Small adult
Average-sized adult
Large adult
54 Planmeca ProOne
EXPOSURE VALUES FOR MULTI-ANGLE TMJ PROGRAM
PATIENT
This procedure will produce three lateral exposures with
different angles from the patient's left or right
temporomandibular joint.
Note that the C-arm will move three times during the
exposure cycle.
Use the chin support for this exposure. Insert the chin
support into the adapter on the patient support table.
Ask the patient to remove any spectacles, hearing aids,
dentures, hairpins, and personal jewellery such as
earrings, necklaces and piercings as these can produce
shadows or reflections in the image. The patient should
also remove any loose items of clothing (e.g. scarf, tie)
that might get caught in the unit's arm structures.
Place a protective lead apron over the patient's back if
required.
Select the TMJ exposure program "3 angles lateral" as
described in section 9.3 "Selecting temporomandibular
joint (TMJ) exposure program" on page 20. Select the
patient size as described in section 9.7 "Selecting patient
size" on page 34.
Select the image position parameters (target position,
imaging angle and left/right side exposure) as described
in section 9.3.1 "Selecting imaging position for
temporomandibular joint (TMJ) exposures" on page 23.
The exposure values will automatically change according
to the selected patient size. The preset exposure values
are shown in the following table. The preset exposure
values are average values and they are only meant to
guide the user. If needed, you can change the preset
values as described in section 9.8 "Selecting kilovolt and
milliampere values" on page 35.
NOTE
Always try to minimize the radiation dose to the patient.
kV VALUE
64
66
68
70
mA VALUE
7
7
7
7
User's Manual