Cyclical Hypofractionated Radiotherapy

**Semantic type:** Therapeutic or Preventive Procedure

**Definition:** A hypofractionated radiotherapy regimen that delivers 4 fractions over a 2-day period, with fractions given twice daily with a minimum of 6 hours between treatments. If no tumor progression is observed, this treatment is repeated every 3 weeks for a total of 3 cycles.

**Synonyms:** - Quad Shot - Quad Shot RT - Quad Shot Radiation Therapy