Evaluation of intraoperative localization by indocyanine green (ICG) injection for laparoscopic colorectal cancer surgery

Interventions: The ICG local injection will be performed during preoperative endoscopy, and infrared light observation is performed during intraperitoneal observation during surgery.;ICG, Preoperative marking, Tumor location
Primary outcome(s): We determine whether the location where the ICG is locally injected with the preoperative colonoscopy can be detected by intraoperative infrared observation.
Study Design: single arm study, open(masking not used), uncontrolled control, single assignment, diagnostic purpose