3 RESULTS
3.1 Microscopic Measurements of the Thrombus
We first measured the BF image of a H&E-stained thrombus slide and the RI distributions of an unlabeled consecutive slice using a BF slide scanner and an ODT system, respectively (Figure 3 ; see Methods for details). The BF image revealed a clear distinction between RBC and fibrin (Figure 3a). The RI distribution measured using the ODT provided high-resolution subcellular features and exhibited characteristic RI values for the RBC and fibrin area.