Piezoelectric transducer based miniature catheter for ultrahigh speed endoscopic optical coherence tomography

Tsung-Han Tsai; Benjamin M. Potsaid; Martin Kraus; Jonathan J. Liu; Chao Zhou; Joachim Hornegger; James G. Fujimoto

doi:10.1117/12.875815

11 February 2011 Piezoelectric transducer based miniature catheter for ultrahigh speed endoscopic optical coherence tomography

Tsung-Han Tsai, Benjamin M. Potsaid, Martin Kraus, Jonathan J. Liu, Chao Zhou, Joachim Hornegger, James G. Fujimoto

Author Affiliations +

Proceedings Volume 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV; 788919 (2011) https://doi.org/10.1117/12.875815
Event: SPIE BiOS, 2011, San Francisco, California, United States

Abstract

We developed a piezoelectric transducer (PZT) based miniature catheter with an outer diameter of 3 mm for ultrahigh speed endoscopic optical coherence tomography (OCT) using Fourier domain modelocked (FDML) laser at a 480 kHz axial scan rate. The miniaturized PZT bender actuates a fiber to provide high scanning speed. The side-viewing probe can be pulled back for a long distance to acquire three-dimensional (3D) dataset covering a large area on the specimen. Operating with a high speed data acquisition (DAQ) system, OCT imaging with 6.5 mm imaging range, 10 μm axial resolution, 20 μm lateral resolution, and frame rate of 480 frames per second (fps) is demonstrated.

Citation Download Citation

Tsung-Han Tsai, Benjamin M. Potsaid, Martin Kraus, Jonathan J. Liu, Chao Zhou, Joachim Hornegger, and James G. Fujimoto "Piezoelectric transducer based miniature catheter for ultrahigh speed endoscopic optical coherence tomography", Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 788919 (11 February 2011); https://doi.org/10.1117/12.875815

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