1. Towards the guidance of transbronchial biopsy: Identifying pulmonary nodules with optical coherence tomography

    Towards the guidance of transbronchial biopsy: Identifying pulmonary nodules with optical coherence tomography

    Background: Solitary pulmonary nodules (SPN) frequently require transbronchial needle aspiration (TBNA) or biopsy to determine malignant potential, but have variable diagnostic yields. Confirming needle placement within SPNs during TBNA could significantly increase diagnostic yield. Optical coherence tomography (OCT) provides non-destructive, high-resolution, microstructural imaging with potential to distinguish SPN from parenchyma. We have previously developed needle-based OCT probes compatible with TBNA. Before OCT can play any significant role in guiding clinical TBNA, OCT interpretation criteria for differentiating SPN from lung parenchyma must be developed and validated. Methods: OCT of SPN and parenchyma was performed in 111 ex vivo resection specimens. OCT ...

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