2001 Volume 44 Issue Supplement1 Pages 38-43
We restored a human nasosinus model whose sinuses underwent functional endoscopic sinus surgery. The nasal cavity was constructed from a cast made at autopsy, and the maxillary and ethmoid sinuses were reconstructed from computed tomogarphy (CT) images. Anterior and posterior ethmoid cells were dissected and the diameter of the maxillary ostium enlarged to 10 mm.
We evaluated the depositional patterns of carbon particles, administered by jet nebulizer, whose aerodynamic diameter was 6.99 μm or 14.61 μm. Both sizes were well deposited on the ostiomeatal complex, the maxillary sinus, and the ethmoid sinuses. We also evaluated the effects of the nebulizer nozzle angle on particle deposition in the nasal cavity. We found that a 45° angle was more effective than a 30°.
Our results indicate that both particle size and nozzle angle are important factors in aerosol deposition.
