Diagnostic Efficacy of FFOCT Imaging for Tissue Sample Obtained by EUSFNB

In most Asian medical centers, rapid on-site cytology evaluation is not available, the number of needle passes of EUS-FNA is decided by endoscopists. Full-field optical coherence tomography (FF-OCT) is a new optical imaging technique that could generate sectioning tomogram from fresh tissue and provide close-to-pathology depiction of the morphological structure and pathological changes in minutes without conventional tissue preparation, slicing, and staining, and dynamic cell imaging (DCI) added the viability information of cells/tissue, which could be more important in sample rapid evaluation.