Indocyanine Green Fluorescence Imaging in Prevention of Colorectal Anastomotic Leakage

Inclusion Criteria: * All consenting patients in the catchment area of participating hospitals who undergo elective colorectal surgery with planned primary anastomosis are eligible for this study. * Of rectal cancer patients only those with pathology in the proximal third will be included in the study (defined by area proximal from peritoneal fold). Exclusion Criteria: * Emergent patients * Patients with proven diverticular abscess and colonic fistulas are excluded * Patients with planned open surgery are excluded.