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  1. NTU Scholars
  2. 醫學院
  3. 醫學院附設醫院 (臺大醫院)
Please use this identifier to cite or link to this item: https://scholars.lib.ntu.edu.tw/handle/123456789/511199
Title: A novel intravital multi-harmonic generation microscope for early diagnosis of oral cancer
Authors: Cheng Y.-H.
Lin C.-F.
TIFFANY TING-FANG SHIH 
Sun C.-K.
Issue Date: 2013
Journal Volume: 8577
Start page/Pages: 85770R
Source: Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abstract: 
Oral cancer is one of the most frequently diagnosed human cancers and leading causes of cancer death all over the world, but the prognosis and overall survival rate are still poor because of delay in diagnosis and lack of early intervention. The failure of early diagnosis is due to insufficiency of proper diagnostic and screening tools and most patients are reluctant to undergo biopsy. Optical virtual biopsy techniques, for imaging cells and tissues at microscopic details capable of differentiating benign from malignant lesions non-invasively, are thus highly desirable. A novel multi-harmonic generation microscope, excited by a 1260 nm Cr:forsterite laser, with second and third harmonic signals demonstrating collagen fiber distribution and cell morphology in a sub-micron resolution, was developed for clinical use. To achieve invivo observation inside the human oral cavity, a small objective probe with a suction capability was carefully designed for patients' comfort and stability. By remotely changing its focus point, the same objective can image the mucosa surface with a low magnification, illuminated by side light-emitting diodes, with a charge-coupled device (CCD) for site location selection before the harmonic generation biopsy was applied. Furthermore, the slow galvanometer mirror and the fast resonant mirror provide a 30 fps frame rate for high-speed real-time observation and the z-motor of this system is triggered at the same rate to provide fast 3D scanning, again ensuring patients' comfort. Focusing on the special cytological and morphological changes of the oral epithelial cells, our preliminary result disclosed excellent consistency with traditional histopathology studies. ? 2013 Copyright SPIE.
URI: https://scholars.lib.ntu.edu.tw/handle/123456789/511199
ISSN: 1605-7422
DOI: 10.1117/12.2001593
metadata.dc.subject.other: Morphological changes; Oral cancer; Overall survival rates; Real-time observation; Second and third harmonics; Second harmonics; Sub-micron resolutions; Third harmonic; Biopsy; Diseases; Light emitting diodes; Mirrors; Site selection; Tissue; Harmonic generation
[SDGs]SDG3
Appears in Collections:醫學院附設醫院 (臺大醫院)

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臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

總館學科館員 (Main Library)
醫學圖書館學科館員 (Medical Library)
社會科學院辜振甫紀念圖書館學科館員 (Social Sciences Library)

開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

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