To explore the diagnostic value of electromagnetic navigation bronchoscopy (ENB) combined with radial ultrasound (EBUS) for peripheral lung disease.

This study summarized total Thirty-two patients with peripheral pulmonary lesions from the Department of Respiratory Diseases of Tangdu Hospital from January 2018 to July 2019. Screening of 6 cases with unclear final diagnosis and undetected and biopsy, comparing the diagnosis rate and clinical characteristics of confirmed cases with stratified relationship and clinical characteristics of undiagnosed cases.

17 cases were diagnosed with ENB + EBUS, with a diagnosis rate of 65.4%. Among the 17 patients, 10 had malignant lesions and 17 were benign lesions. Clinical characteristics of ENB + EBUS diagnosis rate: d<1 cm group, 1 cm≤d<2 cm group, d≥2 cm group had no statistically significant difference in the diagnostic rate(χ²=1.194, P=0.400); There was no statistical difference in the diagnostic rate between the d<1 cm group, 1 cm≤d<3 cm group, and d≥3 cm group (χ²=3.221, P=0.151); there was no statistical difference in the diagnostic rate of the group with or without bronchial inflation sign (χ²=2.148, P=0.188); there was no statistical difference in the diagnosis rates of the right upper lobe, right lower lobe, middle right lobe, upper left lobe, left lower lobe, and both lungs(χ²=2.148, P=0.188); 2 cases were unexplored located in the right upper lobe.

ENB+ EBUS could improve the diagnosis rate of peripheral lung lesions. The diagnosis rate was not related to the size of the lesion, the distance from the pleura, the distribution of the lung lobes and the presence or absence of bronchial inflation signs.