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Abstract
Probe-based confocal laser endomicroscopy (pCLE) is an emerging technology for dynamic, in vivo imaging of the urinary tract with micron-scale resolution. We conducted a comparative analysis of pCLE with a 2.6-mm probe and a 1.4-mm probe that is compatible with flexible endoscopes.Sixty-seven patients scheduled for bladder tumor resection were recruited. pCLE imaging was performed using 2.6- and 1.4-mm probes. Image quality with the different probes was examined and further compared with standard histopathology.Images with the 2.6-mm probe have better resolution of cell morphology. The 1.4-mm probe has a wider field of view and better view of microarchitecture. While image quality with the 2.6-mm probe is superior, the 1.4-mm probe is compatible with flexible cystoscopy and maneuverability is maintained, enabling imaging of areas of the bladder that were previously challenging to access with the larger probe.The optical specifications of the 2.6-mm probe are more suitable for distinguishing urinary tract histopathology. Further design optimization to improve resolution and additional validation of the diagnostic accuracy of the smaller probe are needed to help extend application of pCLE for optical biopsy of the upper and lower urinary tract.
View details for DOI 10.1089/end.2010.0686
View details for Web of Science ID 000291553500004
View details for PubMedID 21568756