Previous studies of Indocyanine green (ICG) in colorectal surgery have focused on lymphatic mapping, lymph node detection, and the number of harvested lymph nodes. However, relatively few studies have evaluated the outcomes of this imaging technology, especially the prognosis following of colorectal cancer resection. The present study assessed the prognosis of colorectal cancer patients following ICG fluorescence-guided surgery as compared to conventional surgery without the use of ICG Fluorescence imaging

Inclusion Criteria:

• age > 18 years,
• confirmed diagnosis of primary CRC,
• preoperative tumor stage of cT1 to cT4, N-/+, M0 as determined by contrast-enhanced computed tomography (CT),
• no distant metastasis, -American Society of Anesthesiologists(ASA)Physical Status Classification score of 1, 2, or 3-

Exclusion Criteria:

• history of previous colorectal surgery, emergent surgery, or palliative resection;
• pregnancy or breastfeeding;
• allergy or history of an adverse reaction to ICG; and
• severe mental disorder.

all patients with newly diagnosed CRC who underwent CRC surgery between December 2016 and August 2021 in Shanghai Tongren hospital