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5.3.2 Preparing and positioning the patient
To prepare and position the patient, follow the next steps.
1. Have the patient remove all jewelry and metallic objects, such as earrings, hair pins,
spectacles, dentures, and orthodontic appliances. These items can cause shadow
images that may obscure diagnosis.
2. Insert the Chin support (Sinus).
3. It is recommended that the patient wear a lead apron for protection against any possible
scatter radiation.
It is necessary to adjust exposure parameters manually to reflect the
patient’s unique features like structure of bone and its density. This is done
through kVp/mA adjustment.
Refer to the look-up table for details in APPENDIX.
Correct posture is very important factor for the best image possible.
This is because it reduces the shadow of spinal column transferred to the
reconstructed image.
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