DEVICE, METHOD AND SYSTEMS FOR PROVIDING IMAGING OF ONE OR MORE ASPECTS OF BLOOD PERFUSION
The present invention relates to a device (100), systems (500, 500', 500") and a method for providing imaging of one or more aspects of blood perfusion induced by cardiac induced blood motion in a skin region (12) of a subject. Current perfusion imaging systems use either photoplethysmogra...
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Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The present invention relates to a device (100), systems (500, 500', 500") and a method for providing imaging of one or more aspects of blood perfusion induced by cardiac induced blood motion in a skin region (12) of a subject. Current perfusion imaging systems use either photoplethysmography (PPG) or speckle contrast (SC), but a problem of both techniques is that considerable ambiguity exists because the source of the signal (volume pulsatility in PPG or blood flow in SC) is unknown. The present invention is based on the idea of combining two different types of measurement, namely widefield imaging and radial imaging, in order to estimate the source depth (20) of the signal to provide more accurate PPG imaging and SC imaging. |
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