Advanced gastrointestinal endoscopic imaging for inflammatory bowel diseases

Table 1 Technical characteristics of probe based and integrated integrated confocal laser endomicroscopy devices

	Endoscope based CLE	Probe based CLE
	iCLE	GastroFlex	GastroFlexUHD	ColoFlex	ColoFlexUHD
Image-plane depth (μm)	0-250	70-130	55-65	70-130	55-65
Lateral resolution (μm)	0.7	3.5	1	3.5	1
Field-of-view (μm)	475 × 475	600 × 600	240 × 240	600 × 600	240 × 240
Frames per second	0.8-1.6	12	12	12	12
Magnification	1000-fold	1000-fold	1000-fold	1000-fold	1000-fold
Required operating channel (mm)		≥ 2.8	≥ 2.8	≥ 2.8	≥ 2.8
Length (cm)	120 and 180	300	300	400	400

iCLE: Integrated confocal laser endomicroscopy; UHD: Ultra-high definition.