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. 2010 Jul 30;18(16):17364–17372. doi: 10.1364/OE.18.017364

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©2010 Optical Society of America

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License, which permits download and redistribution, provided that the original work is properly cited. This license restricts the article from being modified or used commercially.

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Fig. 1 — System schematic of the double-balloon-based SD-EOCT system. Within the catheter, the beam can be located between two balloons for imaging without balloon-tissue contact (labeled beam position 1) or in a balloon for imaging with contact (labeled beam position 2). The inset photo (top right) shows the double-balloon catheter (compared with a dime) inserted through the GI endoscope and inflated.