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Proceedings Paper

Visual enhancement of laparoscopic nephrectomies using the 3-CCD camera
Author(s): Nicole J. Crane; Neil S. Kansal; Nadeem Dhanani; Mehrdad Alemozaffar; Allan D. Kirk; Peter A. Pinto; Eric A. Elster; Scott W. Huffman; Ira W. Levin
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Paper Abstract

Many surgical techniques are currently shifting from the more conventional, open approach towards minimally invasive laparoscopic procedures. Laparoscopy results in smaller incisions, potentially leading to less postoperative pain and more rapid recoveries . One key disadvantage of laparoscopic surgery is the loss of three-dimensional assessment of organs and tissue perfusion. Advances in laparoscopic technology include high-definition monitors for improved visualization and upgraded single charge coupled device (CCD) detectors to 3-CCD cameras, to provide a larger, more sensitive color palette to increase the perception of detail. In this discussion, we further advance existing laparoscopic technology to create greater enhancement of images obtained during radical and partial nephrectomies in which the assessment of tissue perfusion is crucial but limited with current 3-CCD cameras. By separating the signals received by each CCD in the 3-CCD camera and by introducing a straight forward algorithm, rapid differentiation of renal vessels and perfusion is accomplished and could be performed real time. The newly acquired images are overlaid onto conventional images for reference and comparison. This affords the surgeon the ability to accurately detect changes in tissue oxygenation despite inherent limitations of the visible light image. Such additional capability should impact procedures in which visual assessment of organ vitality is critical.

Paper Details

Date Published: 13 February 2006
PDF: 8 pages
Proc. SPIE 6081, Multimodal Biomedical Imaging, 60810G (13 February 2006); doi: 10.1117/12.663940
Show Author Affiliations
Nicole J. Crane, National Institutes of Health (United States)
Neil S. Kansal, George Washington Univ. (United States)
Nadeem Dhanani, National Institutes of Health (United States)
Mehrdad Alemozaffar, National Institutes of Health (United States)
Allan D. Kirk, National Institutes of Health (United States)
Peter A. Pinto, National Institutes of Health (United States)
Eric A. Elster, Naval Medical Research Ctr. (United States)
National Institutes of Health (United States)
Scott W. Huffman, Western Carolina Univ. (United States)
Ira W. Levin, National Institutes of Health (United States)

Published in SPIE Proceedings Vol. 6081:
Multimodal Biomedical Imaging
Fred S. Azar; Dimitris N. Metaxas, Editor(s)

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