[Use of A-mode ultrasound in the diagnosis of maxillary sinus diseases].

This paper reported our recent attempt to utilize the nasal ultrasonography (ECHO-TE-11) in the diagnosis of maxillary sinus diseases. We performed nasal ultrasonography on 160 individuals (69 with normal maxillary sinus; 91 with chronic maxillary sinus diseases). In the normal maxillary sinus group, the proportion of diagnostic accuracy was 89.9% (62/69) and in the maxillary sinusitis group, the proportion was 91.9% (80/87). 4 cases, including postoperative maxillary cyst, benign tumor and malignant tumor of the maxillary sinus, could be accurately diagnosed by this technique. The precautions were also discussed.