Isetyenziselwa i-endoscopically ngokubambisana ne-monopolar electrosurgical current ukufumana i-biopsies yezicubu ze-mucosal esiswini kunye nokususwa kwe-polyps edibeneyo.Icatheter entsha elungelelanisiweyo eyenzelwe ukomeleza ukusebenza kakuhle kokudlula kwi-anatomy ebuhlunguIikomityi ezahlukeneyo zenzelwe i-mucosa / submucosa eyahlukileyo