Extended Data Fig. 2: Acquisition and analysis of OCT scans.
From: Subcutaneous depth-selective spectral imaging with mμSORS enables noninvasive glucose monitoring
a, The 3D image acquired by OCT (the left hand of D132 as an example). b, The intensity profile along the z (depth) dimension of Subject D132’s left hand (same as a). z = 0 corresponds to the skin surface. Yellow dot indicates the characteristic points that were manually annotated and corresponded to the DEJ depth.
