Copyright ©The Author(s) 2016.
World J Gastrointest Endosc. Mar 10, 2016; 8(5): 273-275
Published online Mar 10, 2016. doi: 10.4253/wjge.v8.i5.273
Table 1 Comparison of two endoscopic confocal raman spectroscopic systems
Technical parametersDeveloped by Almond et al[3]Developed by Bergholt et al[4]
λex830 nm785 nm
Diameter of probe2.7 mm1.8 mm
Range of Raman spectra400-1850 cm-1800-1800 cm-1
Acquisition times1 s0.2 s
Classification modelPrincipal component fed linear discriminant analysisPartial least-squares discriminant analysis[9]
Diagnostic wayEx vivoReal-time in vivo
Sensitivity and specificity for detecting HGD in BE86% and 88%87.0% and 84.7%