Dye-Free laser imaging could replace standard dye in colorectal surgery

This study compares two imaging methods for checking blood flow to the bowel during colorectal surgery: the standard technique using a dye called indocyanine green (ICG) and a newer dye-free method called Laser Speckle Contrast Imaging (LSCI). About 30 adults having elective colon or rectal surgery with a bowel connection will have both imaging methods used during their operation. Surgeons will make decisions based only on the standard ICG images, while the LSCI images are collected for comparison. The goal is to see if LSCI can provide objective, dye-free perfusion assessment that matches or improves upon current practice.