Clinical Validation of mμSORS for Noninvasive Blood Glucose Detection

This is a single-center, open-label, prospective study. Blood glucose was measured at different time points during oral glucose tolerance testing in healthy subjects and patients with type 2 diabetes mellitus, using both venous plasma and multi-channel microspatial offset Raman scattering spectroscopy (mμSORS). Venous plasma glucose was set as gold standard.The two measurements were collected synchronously so as to calculate the mean absolute relative difference (MARD) and the consensus error grid (CEG). Accuracy of non-invasive blood glucose testing by mμSORS will be validated. MARD for two measurement methods in different blood glucose ranges and the effect of mμSORS on safety in the patient such as adverse events will also be assessed.