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X-RAY THE ZYGOMATIC ARCHES

 

X-Ray Images the Zygomatic Arches


You have a request for an X-ray examination of the zygomatic arches. You have the assistance of additional personnel if required. You will need a properly equipped X-ray exposure room with various sizes of film in cassettes, sandbags, lead apron, letter markers, and various sponges.

1.  Select the required view(s) based on the request.

2.  Gather the necessary materials and supplies.

a.  Appropriate cassettes.

b.  Lead apron.

c.  Letter markers.

3.  Prepare the patient

a.  Bring the patient into the X-ray room.

b.  Ensure the patient is properly dressed.

(1)  Ensure foreign objects are removed from the patient as necessary.

(2)  Ensure the patients clothing is removed as required.

c.  Explain the procedure if applicable.

d.  Assist the patient onto the table.

4.  Measure the body part through the entry-exit site of the central ray.

5.  Set the control panel.

a.  Consult the technique chart.

b.  Set the appropriate mAs and kVp on the control panel.

6.  Select the proper size cassette.

NOTE: Use an 8" X 10" cassette for all views.

7.  Position the overhead tube.

a.  Set the tube angle perpendicular to the film.

b.  Set the source to image receptor distance (SID) to 40 inches (101 cm).

c.  Center the tube to the cassette.

d.  Adjust the conefield to full field coverage.

8.  Position the zygomatic arches.

NOTE: Because of the extreme mobility of the head on the neck, all positions of the skull require a two-way head alignment (TWHA) for exact positioning of the skull.

a.  SMV view (TWHA).

(1)  Place the patient seated with back against the upright table.

(2)  Adjust the vertex of the skull in contact with the table.

(3)  Place the median plane perpendicular to and over the centerline of the table

(4)  Adjust the infraorbitomeatal line (IOML) parallel to the table.

(5)  Center the midpoint of the IOML to the cassette.

b.  Oblique axial (bilateral) view (TWHA).

(1)  Place the patient seated with back against the upright table.

(2)  Adjust the vertex of the skull in contact with the table.

(3)  Turn the head 15 degree towards the side to be examined. Adjust the median plane to form a 15 degree angle to the table.

(4)  Adjust the IOML parallel to the table.

(5)  Center the midpoint of the IOML of the side nearest the table to the cassette.

9.  Place the appropriate identification marker on the cassette.

10.  Place the lead apron across the patient's lap.

11.  Verify the exposure factors.

12.  Tell the patient, "DO NOT BREATHE OR MOVE."

13.  Make the exposure.

14.  Tell the patient, "BREATHE NORMALLY AND RELAX."

15.  Develop the exposed cassette(s) with patient identification for processing.

16.  Return the patient to the waiting area.

 

David L. Heiserman, Editor

Copyright   SweetHaven Publishing Services
All Rights Reserved

Revised: June 06, 2015