Intra-arterial Therapy is a medical treatment that delivers medication directly into an artery, targeting specific areas of the body. This method is often used for conditions like cancer, where localized treatment can minimize side effects and improve effectiveness. By placing a catheter into the artery, doctors can administer chemotherapy or other drugs directly to the tumor. This therapy can also be used to treat conditions such as peripheral artery disease or acute ischemic stroke. By providing targeted treatment, intra-arterial therapy can enhance recovery and improve outcomes for patients, making it a valuable option in modern medicine.