1. Articles from henri g. colt

    1-4 of 4
    1. Combined Optical Coherence Tomography and Endobronchial Ultrasonography for Laser-Assisted Treatment of Postintubation Laryngotracheal Stenosis

      Combined Optical Coherence Tomography and Endobronchial Ultrasonography for Laser-Assisted Treatment of Postintubation Laryngotracheal Stenosis

      We describe the use of combined optical coherence tomography (OCT) and endobronchial ultrasonography (EBUS) to identify the residual hypertrophic tissues and persistent inflammation that are known contributors to stricture recurrence after laser-assisted mechanical dilation (LAMD) of laryngotracheal stenosis (LTS). Methods : Commercially available high-frequency EBUS (approximately 100-μm resolution) and time-domain OCT (approximately 10- to 20-μm resolution) systems were used to visualize airway wall microstructures in the area of hypertrophic tissue formation before and after LAMD in 2 patients with complex circumferential postintubation LTS. Results : Before LAMD, EBUS revealed a homogeneous layer consistent with hypertrophic tissue overlying a hyperechogenic layer ...

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      Mentions: UC Irvine
    2. Multimodal imaging guidance for laser ablation in tracheal stenosis

      Multimodal imaging guidance for laser ablation in tracheal stenosis
      Objective/Hypothesis: Laser-induced damage of tracheal wall microstructures might contribute to recurrence after bronchoscopic treatment of tracheal strictures. The purpose of this study was to demonstrate how multimodal imaging using white light bronchoscopy (WLB), endobronchial ultrasound (EBUS), and optical coherence tomography (OCT) might identify in vivo airway wall changes before and resulting from Nd:YAG laser ablation and dilation of tracheal stenosis. Study Design: Case study. Methods: Commercially available WLB, high frequency EBUS using a 20-MHz radial probe and time-domain, frontal imaging OCT systems were used to characterize the extent, morphology, and airway wall microstructures at the area of hypertrophic ...
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    3. Multimodality bronchoscopic imaging of recurrent respiratory papillomatosis

      Objectives/Hypothesis. Recurrent respiratory papillomatosis (RRP) of the central airways requires removal to potentially reduce recurrence and risk for malignant transformation. Analogous to the principles of treatment for early lung cancer, a precise determination of the extent of cartilage invasion could help guide therapeutic decisions and monitor response to treatment. The purpose of this study was to determine whether a bronchoscopy platform comprised of white light bronchoscopy (WLB), endobronchial ultrasound (EBUS), and optical coherence tomography (OCT) could identify layered microstructure of RRP and underlying cartilage. Study Design. Case study. Methods. A bronchoscopy platform consisting of commercially available WLB, EBUS using ...
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    4. Real-time swept source optical coherence tomography imaging of the human airway using a microelectromechanical system endoscope and digital signal processor

      Jianping Su, Jun Zhang, Lingfeng Yu et al. A fast-scan-rate swept laser for optical coherence tomography (OCT) is suitable to record and analyze a 3-D image volume. However, the whole OCT system speed is limited by data streaming, processing, and storage. In this case, postprocessing is a common technique. Endoscopic clinical applications pr ... [J. Biomed. Opt. 13, 030506 (2008)] published Tue Jul 1, 2008.
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    1-4 of 4
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    1. (4 articles) UC Irvine
    2. (2 articles) Matthew Brenner
    3. (1 articles) University of Ulsan
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