Respiration; international review of thoracic diseases · 2021
Cone-Beam Computed Tomography-Guided Electromagnetic Navigation for Peripheral Lung Nodules.
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Kheir Fayez, Thakore Sanket R, Uribe Becerra Juan Pablo, Tahboub Mohammad, Kamat Rahul, Abdelghani Ramsy, Fernandez-Bussy Sebastian, Kaphle Upendra R, Majid Adnan
Аннотация
BACKGROUND: Electromagnetic navigation bronchoscopy (ENB) is a minimally invasive technology for the diagnosis of peripheral pulmonary nodules. However, ENB is limited by the lack of real-time confirmation of various biopsy devices. Cone-beam computed tomography (CBCT) could increase diagnostic yield by allowing real-time confirmation to overcome the inherent divergence of nodule location.
OBJECTIVES: The aim of this study was to assess the diagnostic yield of ENB plus CBCT as compared with ENB alone for biopsy of peripheral lung nodules.
METHOD: We conducted a retrospective study of patients undergoing ENB before and after the implementation of CBCT. Data from 62 consecutive patients with lung nodules located in the outer two-thirds of the lung who underwent ENB and combined ENB-CBCT were collected. Radial endobronchial ultrasound was used during all procedures as well. Diagnostic yield was defined as the presence of malignancy or benign histological findings that lead to a specific diagnosis.
RESULTS: Thirty-one patients had ENB-CBCT, and 31 patients had only ENB for peripheral lung lesions. The median size of the lesion for the ENB-CBCT group was 16 (interquartile range (IQR) 12.6-25.5) mm as compared to 21.5 (IQR 16-27) mm in the ENB group (p = 0.2). In the univariate analysis, the diagnostic yield of ENB-CBCT was 74.2% and ENB 51.6% (p = 0.05). Following multivariate regression analysis adjusting for the size of the lesion, distance from the pleura, and presence of bronchus sign, the odds ratio for the diagnostic yield was 3.4 (95% CI 1.03-11.26, p = 0.04) in the ENB-CBCT group as compared with ENB alone. The median time for the procedure was shorter in patients in the ENB-CBCT group (74 min) than in those in the ENB group (90 min) (p = 0.02). The rate of adverse events was similar in both groups (6.5%, p = 0.7).
CONCLUSIONS: The use of CBCT might increase the diagnostic yield in ENB-guided peripheral lung nodule biopsies. Future randomized clinical trials are needed to confirm such findings.
OBJECTIVES: The aim of this study was to assess the diagnostic yield of ENB plus CBCT as compared with ENB alone for biopsy of peripheral lung nodules.
METHOD: We conducted a retrospective study of patients undergoing ENB before and after the implementation of CBCT. Data from 62 consecutive patients with lung nodules located in the outer two-thirds of the lung who underwent ENB and combined ENB-CBCT were collected. Radial endobronchial ultrasound was used during all procedures as well. Diagnostic yield was defined as the presence of malignancy or benign histological findings that lead to a specific diagnosis.
RESULTS: Thirty-one patients had ENB-CBCT, and 31 patients had only ENB for peripheral lung lesions. The median size of the lesion for the ENB-CBCT group was 16 (interquartile range (IQR) 12.6-25.5) mm as compared to 21.5 (IQR 16-27) mm in the ENB group (p = 0.2). In the univariate analysis, the diagnostic yield of ENB-CBCT was 74.2% and ENB 51.6% (p = 0.05). Following multivariate regression analysis adjusting for the size of the lesion, distance from the pleura, and presence of bronchus sign, the odds ratio for the diagnostic yield was 3.4 (95% CI 1.03-11.26, p = 0.04) in the ENB-CBCT group as compared with ENB alone. The median time for the procedure was shorter in patients in the ENB-CBCT group (74 min) than in those in the ENB group (90 min) (p = 0.02). The rate of adverse events was similar in both groups (6.5%, p = 0.7).
CONCLUSIONS: The use of CBCT might increase the diagnostic yield in ENB-guided peripheral lung nodule biopsies. Future randomized clinical trials are needed to confirm such findings.