Machine perfusion is a medical technique used to preserve organs outside the body. It involves pumping a nutrient-rich solution through the organ's blood vessels, which helps maintain its function and viability. This process is particularly important for organs like the kidneys and livers, which can deteriorate quickly when removed from the body. By using machine perfusion, medical professionals can extend the time an organ remains viable for transplantation. This method improves the chances of successful transplant outcomes by ensuring that the organ remains healthy and well-oxygenated until it can be implanted into a recipient.