Aceto-electrical chromoendoscopy and Linked Color Imaging for determining treatment indication for colonic T1 suspected lesions

Aims Extra chromoendoscopy is recommended to choose endoscopic resection (ER) or surgical resection (SR) for colonic lesions suspected of T1. Although chromoendoscopy with crystal violet has been established, it is not common outside Japan. We aimed to analyze the feasibility of more convenient method using acetic acid (aceto-electrical chromoendoscopy; AEC) and Linked Color Imaging (LCI) [1] [2].