Fig. 1From: Hyperspectral imaging in systemic sclerosis-associated Raynaud phenomenonHyperspectral imaging (HSI) heatmap. A HSI oxyHb image from a patient with systemic sclerosis-Raynaud phenomenon (SSc-RP). Red: higher oxyHb [arbitrary units (AU)]; blue: lower oxyHb (AU). The region of interest (ROI) on the palmar side of the hand and fingertips is indicated by an opaque gray circleBack to article page