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Radiographic procedures (3) 12: Paranasal sinuses Merrill’s Chapter 22 Nahideh Gharehaghaji Assistant Professor Department of Radiology, Paramedical Faculty Tabriz University of Medical Sciences

Radiographic procedures (3) 12: Paranasal sinuses

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Page 1: Radiographic procedures (3) 12: Paranasal sinuses

Radiographic procedures (3)

12: Paranasal sinuses

Merrill’s Chapter 22

Nahideh Gharehaghaji

Assistant Professor

Department of Radiology, Paramedical Faculty

Tabriz University of Medical Sciences

Page 2: Radiographic procedures (3) 12: Paranasal sinuses

Outline

• Paranasal sinuses

• Technical considerations

• Radiation protection

• Projections

Page 3: Radiographic procedures (3) 12: Paranasal sinuses

Paranasal sinuses

Page 4: Radiographic procedures (3) 12: Paranasal sinuses

Effect of exposure parameters

Correctly exposed

radiograph

Overexposed

radiograph

Underexposed

radiograph

Page 5: Radiographic procedures (3) 12: Paranasal sinuses

Effect of central ray angle

Page 6: Radiographic procedures (3) 12: Paranasal sinuses

All groups of sinuses

Lateral projection

Page 7: Radiographic procedures (3) 12: Paranasal sinuses

Lateral sinuses

Page 8: Radiographic procedures (3) 12: Paranasal sinuses

Frontal and anterior ethmoidal sinuses

PA axial projection (Caldwell method)

Page 9: Radiographic procedures (3) 12: Paranasal sinuses

Frontal and anterior ethmoidal sinuses

PA axial projection (Caldwell method)

Page 10: Radiographic procedures (3) 12: Paranasal sinuses

PA axial sinuses

Page 11: Radiographic procedures (3) 12: Paranasal sinuses

Maxillary sinusesParietoacanthial projection (Waters method)

Page 12: Radiographic procedures (3) 12: Paranasal sinuses

Parietoacanthial projection

(Waters method)

Page 13: Radiographic procedures (3) 12: Paranasal sinuses

Parietoacanthial sinuses

(Waters Method)

Page 14: Radiographic procedures (3) 12: Paranasal sinuses

Maxillary and ethmoidal sinuses

Parietoacanthial projection

(open- mouth Waters method)

Page 15: Radiographic procedures (3) 12: Paranasal sinuses

Parietoacanthial sinuses

(open mouth Waters method)

Page 16: Radiographic procedures (3) 12: Paranasal sinuses

Ethmoidal and sphenoidal sinuses

Submentovertical method

Page 17: Radiographic procedures (3) 12: Paranasal sinuses

Submentovertical sinuses

Page 18: Radiographic procedures (3) 12: Paranasal sinuses

Ethmoidal, sphenoidal and

maxillary sinuses

PA projection

Page 19: Radiographic procedures (3) 12: Paranasal sinuses

PA posterior ethmoidal sinuses

Page 20: Radiographic procedures (3) 12: Paranasal sinuses

PA sphenoidal sinuses

Page 21: Radiographic procedures (3) 12: Paranasal sinuses

PA maxillary sinuses

Page 22: Radiographic procedures (3) 12: Paranasal sinuses

Reference

• Philip W Ballinger, Merrill's Atlas of

Radiographic Positions and Radiographic

Procedures, Volume 2, 2007, Mosby