Ultrasonography Vs Mri Imaging In Diagnosis Of Occupying Lesion In Nasal Cavity And Paranasal Sinuses

Objective To evaluate the clinical value of ultrasonography and Magnetic Resonance Imaging in the diagnosis of occupying lesion in nasal cavity and paranasal sinuses.Methods Seventy-three patients were detected by ultrasonography and MRI and compared with the pathological results.Results The accuracy for diagnosing occupying lesion in nasal cavity and paranasal sinuses on ultrasonography was80.8%(59/73), the accuracy of MRI was86.3(63/73). There was no statistical significant difference between the two methods in overall accuracy rating(P>0.05). The sensitivity, specificity, positive prediction value and negative prediction value for diagnosing malignant tumor in nasal cavity and paranasal sinuses on ultrasonography were92.0%(46/50),56.5%(13/23),90.2%(46/51),92.8%(13/14), respectively. Those on MRI were80.0%(44/50),82.6%(19/23),93.6(44/47),82.6(19/23), respectively. The sensitivity, specificity, positive prediction value and negative prediction value for diagnosing benign tumors on ultrasonography were56.5%(13/23),92.0%(46/50),92.8%(13/14),90.2%(46/51), respectively. Those on MRI were82.6%(19/23),80.0%(44/50),82.6(19/23),93.6(44/47), respectively. There were no statistical significant differences between the ultrasonography and MRI(all P>0.05).Conclusions Ultrasonography can clearly show the location, shape, size, border, internal echo and blood supply of occupying lesion in nasal cavity and paranasal sinuses.It can also evaluate whether or not the surrounding tissue and bones were be invaded. It has much highly value in the diagnosis of occupying lesion in nasal cavity and paranasal sinuses. It is a complementary method for Endoscope,CT and MR imaging assessment.