ABSTRACT
Objective To explore the value of computed tomographic DacryocystographyCT-DCGand computed tomographic three-dimensional3Dreconstruction with lacrimal passages in asymptomatic lacrimal flow patients with nasal structural abnomalities. Method: In 2006-2010, 18 nasal structural abnomalities cases with asymptomatic lacrimal flow and nasal obstruction were enrolled, the lacrimal flow caused by ocular region was obviated. Of all the 18 hypertrophic inferior turbinate cases, there were 12 cases accompanied with nasal septum deviation. The radiofrequency ablation of inferior turbinate and nasal septum deviation surgery under nasaI endoscope were takenThe CT-DCG and 3D reconstruction examines were observed preoperative and postoperative. All the patients were followed-up for 12 months. Result: 18 nasal structural abnomalities were corrected. The nasal obstruction were recoveried and improved in 1477.8%and 422.2% cases respectively. The symptom of epiphora had disappeared and improved in 1372.2% and 5 cases27.8%. Partial obstruction of the internal ostium was found preoperative and resolved postoperative with CT-DCG and 3D reconstruction. Conclusion: CT-DCG and 3D reconstruction can evaluate the asymptomatic alterationsof the normal lacrimal outflow in cases with nasal structural abnomalities, suggesting that they have great value in clinical applications.