Lateral Sinus

By Courtney White & Michael Green

Before Exam

• Always remember to clean the bucky before beginning exam.

• Using a 10 x 12 cassette, collimate to roughly a 5 x 5 area before positioning patient.

Positioning Patient

• Place shield on patient.

• Have patient place left side of face against the bucky.

• Check that patient’s head is in a true lateral position.

Positioning Patient

• Interpupillary line is perpendicular to film

• CR exits at the outer canthus

• Collimation should extend from behind the EAM to the nose, with the nose shadow present on the bucky.

Important Notes

• Evaluation Criteria– All facial bones are included– All potential artifacts are removed– Patient is placed in a true lateral position

• True Lateral– Superimposition of the mandibular rami– Superimposition of the orbital roofs– No rotation seen in the sella turcia

Lateral Sinus Film

The End