Pulmonologist-Performed Ultrasound-Guided Fine-Needle Aspiration of Lung Lesions

Lung cancer is increasingly common, and accurate diagnosis is important for personalized treatment. Ultrasound-guided percutaneous fine-needle aspiration (FNA) is a useful method to obtain a specimen for a histological diagnosis of peripheral lung lesions. The aim of this study is to evaluate the diagnostic accuracy and complication rate of the procedure performed by pulmonologists. The result is compared with that of ultrasound-guided core needle biopsy performed by radiologists.

We retrospectively evaluated the diagnostic accuracy and complication rates of pulmonologist-performed ultrasound-guided FNAs of lung lesions in the period of 1 August 2019 to 30 June 2021 (pulmonologist group) and radiologist-performed ultrasound-guided core needle biopsies (CNBs) of lung lesions in the period of 1 January 2010 to 31 December 2014 (radiologist group). A logistic regression analysis was used to identify independent influence factors associated with diagnostic accuracy in the pulmonologist group and in the combination of both groups.

In a 23-month period, pulmonologists in a tertiary center performed 113 episodes of ultrasound-guided fine-needle aspiration for peripheral lung lesions. The diagnostic accuracy and complication rates were 80.4% and 5.3%, respectively, compared to 86.8% and 7.4% in a historical cohort consisting of 68 episodes of ultrasound-guided core needle biopsies performed by radiologists in the same hospital. Lung lesions located in the upper lobe were predictive of successful diagnoses.

An ultrasound-guided fine-needle aspiration by a pulmonologist is an easily accessible and reliable method to obtain specimens for histological diagnoses.