Imaging based on photoacoustic effect relies on illuminating with short light pulses absorbed by tissue absorbers, resulting in thermoelastic expansion, giving
AIM: To investigate a new mother-baby system, consisting of a peroral cholangioscope and a duodenoscope in patients regarding its feasibility. METHODS: In the s
Endoscopic submucosal dissection(ESD) has important advantages over endoscopic mucosal resection(EMR) for early gastrointestinal neoplasia treatment, but its di