Prospective registry study of endoscopic submucosal injection of indocyanine green before laparoscopic radical resection for colorectal cancer

To observe the imaging result of endoscopic submucosal injection of indocyanine green before laparoscopic radical resection for colorectal cancer, and analyze the relevant factors, so as to guide the submucosal injection of preoperative indocyanine green better.

This study is prospective and observational. In order to analyze the related factors that affect the imaging effect, we enrolled patients who were to undergo indocyanine green fluorescence imaging for laparoscopic radical resection for colorectal cancer.

Inclusion Criteria:

• Patients who were to undergo indocyanine green fluorescence imaging for laparoscopic radical operation of colorectal cancer.

Exclusion Criteria:

• have simultaneously other cancer

  • have severe systemic inflammatory disease ,serious illness such as diabetes, chronic lung diseases
  • have gastrointestinal surgery
  • Indocyanine green or iodine allergy
  • the period is too late or the tumor is too large to carry on a laparoscopic surgery.

Patients who were to undergo indocyanine green fluorescence imaging for laparoscopicradical operation of colorectal cancer.