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Proceedings Paper

Application of DIRI dynamic infrared imaging in reconstructive surgery
Author(s): Marek Pawlowski; Chengpu Wang; Feng Jin; Matthew Salvitti; Xavier Tenorio
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Paper Abstract

We have developed the BioScanIR System based on QWIP (Quantum Well Infrared Photodetector). Data collected by this sensor are processed using the DIRI (Dynamic Infrared Imaging) algorithms. The combination of DIRI data processing methods with the unique characteristics of the QWIP sensor permit the creation of a new imaging modality capable of detecting minute changes in temperature at the surface of the tissue and organs associated with blood perfusion due to certain diseases such as cancer, vascular disease and diabetes. The BioScanIR System has been successfully applied in reconstructive surgery to localize donor flap feeding vessels (perforators) during the pre-surgical planning stage. The device is also used in post-surgical monitoring of skin flap perfusion. Since the BioScanIR is mobile; it can be moved to the bedside for such monitoring. In comparison to other modalities, the BioScanIR can localize perforators in a single, 20 seconds scan with definitive results available in minutes. The algorithms used include (FFT) Fast Fourier Transformation, motion artifact correction, spectral analysis and thermal image scaling. The BioScanIR is completely non-invasive and non-toxic, requires no exogenous contrast agents and is free of ionizing radiation. In addition to reconstructive surgery applications, the BioScanIR has shown promise as a useful functional imaging modality in neurosurgery, drug discovery in pre-clinical animal models, wound healing and peripheral vascular disease management.

Paper Details

Date Published: 18 April 2006
PDF: 10 pages
Proc. SPIE 6205, Thermosense XXVIII, 62050P (18 April 2006); doi: 10.1117/12.674368
Show Author Affiliations
Marek Pawlowski, Advanced BioPhotonics Inc. (United States)
Chengpu Wang, Advanced BioPhotonics Inc. (United States)
Feng Jin, Advanced BioPhotonics Inc. (United States)
Matthew Salvitti, Advanced BioPhotonics Inc. (United States)
Xavier Tenorio, Hospital of the Univ. of Geneva (Switzerland)

Published in SPIE Proceedings Vol. 6205:
Thermosense XXVIII
Jonathan J. Miles; G. Raymond Peacock; Kathryn M. Knettel, Editor(s)

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