PUMA
Istituto di Scienza e Tecnologie dell'Informazione     
Jalil B., Salvetti O., Potý L., Hartwig V., Marinelli M., L'Abbate A. Near infrared image processing to quantitate and visualize oxygen saturation during vascular occlusion. In: Computer Methods and Programs in Biomedicine, vol. 126 pp. 35 - 45. Elsevier, 2016.
 
 
Abstract
(English)
The assessment of microcirculation spatial heterogeneity on the hand skin is the main objective of this work. Near-Infrared Spectroscopic based on 2D imaging is a non-invasive technique for the assessment of tissue oxygenation. The haemoglobin oxygen saturation images were acquired by a dedicated camera (Kent Imaging) during baseline, ischemia (brachial artery cuff occlusion) and reperfusion. Acquired images underwent a preliminary restoration process aimed at removing degradations occurring during signal capturing. Then, wavelet transform based multiscale analysis was applied to identify edges by detecting local maxima and minima across successive scales. Segmentation of test areas during different conditions was obtained by thresholding-based region growing approach. The method identifies differences in microcirculatory control of blood flow in different regions of the hand skin. The obtained results demonstrate the potential use of NIRS images for the clinical evaluation of skin disease and microcirculatory dysfunction.
URL: http://www.sciencedirect.com/science/article/pii/S0169260715003247
DOI: http://dx.doi.org/10.1016/j.cmpb.2015.12.001
Subject Near-Infrared Spectrum
Multiscale Analysis
Oxygen Saturation
I.4 IMAGE PROCESSING AND COMPUTER VISION
I.4.6 IMAGE PROCESSING AND COMPUTER VISION. Segmentation
I.3 COMPUTER GRAPHICS


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