Figure 3.

(A) Comparison of WBC density measurement results obtained with our cell-phone-based imaging flow cytometer is provided against the results of a commercially available hematology analyzer (Sysmex KX-21N) for 12 different patients. A linear regression of the experimental data (n = 12, red line) with WBC concentrations ranging from ~4000 to 8000 μL⁻¹ demonstrates a good agreement between the two modalities with a correlation coefficient of ~0.93. (B) The Bland –Altman analysis results, evaluating the accuracy of the cell-phone-based flow cytometry for WBC density measurements vs the standard hematology analyzer. The blue line shows the bias of −339 cells μL⁻¹, and the red lines show the 95% limits of agreement of −1026 (lower limit) and 347 cells μL⁻¹ (upper limit).