Ultra-high speed real-time 4D display system installed in ultra-high-speed parallel OCT system at a volume rate of 12 volumes/sec

K. Ohbayashi; D. Choi; H. Hiro-oka; A. Kubota; T. Ohno; R. Ikeda; K. Shimizu

doi:10.1117/12.874576

11 February 2011 Ultra-high speed real-time 4D display system installed in ultra-high speed parallel OCT system at a volume rate of 12 volumes/sec

K. Ohbayashi, D. Choi, H. Hiro-oka, A. Kubota, T. Ohno, R. Ikeda, K. Shimizu

Author Affiliations +

Proceedings Volume 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV; 78891Z (2011) https://doi.org/10.1117/12.874576
Event: SPIE BiOS, 2011, San Francisco, California, United States

Abstract

Optical coherence tomography (OCT) has become a promising diagnostic method in many medical fields. Non-invasive real-time optical biopsy of internal organs is one of the most attractive applications of OCT enabling in-situ diagnostic of cancer in its early stage, i.e. optical biopsy. For the application, faster OCT methods are required to reduce the inspection time and motion artifacts in images. A criterion to satisfy the purpose is an endoscopic-OCT method capable to display volumetric tomography continuously in real-time at a rate of video movie like conventional endoscopes. In our previous work, we demonstrated ultra-high speed OCT at an A-scan rate of 60 MHz. However, movies were rendered after the data acquisition. In this work, we have developed an ultra-fast data processing system, installed it in the ultra-high speed OCT system, and enabled real time display of various 3D tomography images without limitation of diagnostic time, i.e. 4D OCT imaging, at an A-scan rate, B-scan rate and volume rate of 10 MHz, 4 kHz and 12 volumes/sec, respectively. Various image presentations in real-time are demonstrated such as continuous rendered 3D imaging and continuous 2D-slice scanning 3D imaging.

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K. Ohbayashi, D. Choi, H. Hiro-oka, A. Kubota, T. Ohno, R. Ikeda, and K. Shimizu "Ultra-high speed real-time 4D display system installed in ultra-high speed parallel OCT system at a volume rate of 12 volumes/sec", Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 78891Z (11 February 2011); https://doi.org/10.1117/12.874576

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