Doi Masao M.D. Ph.D.; Miyazawa, Teruomi M.D., Ph.D.; Mineshita, Masamichi M.D., Ph.D.; Suei, Sunao M.D.; Kurata, Takayasu M.D.; Fukuhara, Noriko M.D.; Ochiai, Mari M.D.Journal of Bronchology: July 1999 Original Article: PDF Only Free Abstract Abstract: Objectives: The objectives of this study were to clarify the usefulness of three-dimensional (3D) bronchial images by spiral computed tomography (CT) in tracheobronchial stent therapy. Five patients with tracheobronchial stenosis caused by lung neoplasms were examined with spinal CT before and after Dumon stent placement. Design: Retrospectively we compared the 3D bronchial images of the patients with bronchoscopic findings, conventional brochography, and conventional CT images. Results: The 3D bronchial images provided information concerning the poststenotic airway where the bronchoscope cannot reach. We could obtain an optimal viewpoint with 3D bronchial images simulating the bronchoscopic view of the tracheobronchial tree described as “virtual bron-chography.” This technique detected abnormalities of the airway before and after stent placement more precisely than the other modalities, although only bronchoscopy can provide a sample for histologic diagnosis. Conventional CT images had an advantage of displaying relationships between the lesion and surrounding structures. Conclusion: We concluded that spiral CT to obtain 3D bronchial images can completely replace conventional bronchography and contribute toward planning and evaluating stent therapy, together with flexible bronchoscopy and conventional CT. © 1999 Lippincott Williams & Wilkins, Inc.