3D localizer for ultrasound endoscope by outside-body markers

Xin Chen; Shinichi Tamura; Hiroaki Naito

doi:10.1117/12.323578

25 September 1998 3D localizer for ultrasound endoscope by outside-body markers

Xin Chen, Shinichi Tamura, Hiroaki Naito

Author Affiliations +

Proceedings Volume 3545, International Symposium on Multispectral Image Processing (ISMIP'98); (1998) https://doi.org/10.1117/12.323578
Event: International Symposium on Multispectral Image Processing, 1998, Wuhan, China

Abstract

In order to reduce the X-ray dose in the endoscopic examination and theory, we are developing an inside-body navigation system which can give and visualize the direct 3D position of the tip and trace of the endoscope instead of the conventional 2D X-ray fluoroscopy. In this paper, we describe a method of identifying 3D position and direction of ultrasound scanning probe inserted into inside of the body, which gives endoscopic images. We use marker transducers placed on surface of the body, which transmit pulses synchronized to the ultrasound scanner. The method of measuring position (direction and distance between scanning probe inside of body and transducer outside of body) of marker on the scanned image itself obtained with ultrasound endoscope by using adaptive threshold and robust algorithm is described. Further, we give some results of confirmation experiments, and discuss them.

Citation Download Citation

Xin Chen, Shinichi Tamura, and Hiroaki Naito "3D localizer for ultrasound endoscope by outside-body markers", Proc. SPIE 3545, International Symposium on Multispectral Image Processing (ISMIP'98), (25 September 1998); https://doi.org/10.1117/12.323578

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