The Daly's Rule

Daly’s Rule is a guideline used to estimate the safe dosage of radiation therapy for brain tumors, helping to minimize damage to healthy tissue. It suggests that the total radiation dose should be divided into smaller, manageable portions called fractions, typically administered over several sessions. This approach allows healthy cells time to repair, reducing side effects while effectively targeting the tumor. In essence, Daly’s Rule balances treatment effectiveness with safety, guiding clinicians to deliver adequate radiation doses while protecting normal brain tissue.