1. Needle-based Optical Coherence Tomography to Guide Transbronchial Lymph Node Biopsy

    Needle-based Optical Coherence Tomography to Guide Transbronchial Lymph Node Biopsy

    Background: Transbronchial needle aspiration (TBNA), often used to sample lymph nodes for lung cancer staging , is subject to sampling error even when performed with endobronchial ultrasound. Optical coherence tomography (OCT) is a high-resolution imaging modality that rapidly generates helical cross-sectional images. We aim to determine if needle-based OCT can provide microstructural information in lymph nodes that may be used to guide TBNA, and improve sampling error. Methods: We performed ex vivo needle-based OCT on thoracic lymph nodes from patients with and without known lung cancer. OCT imaging features were compared against matched histology. Results: OCT imaging was performed in 26 ...

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