RTOG criteria
Also written as: RTOG — Radiation Therapy Oncology Group criteria
Radiation Therapy Oncology Group grading system for radiation-induced normal tissue toxicity and late effects.
Full Definition
The RTOG criteria represent a standardized grading system developed by the Radiation Therapy Oncology Group to assess and document radiation-induced toxicity in normal tissues. The system grades acute and late effects on a scale from 0 (no change) to 4 (life-threatening or requiring major intervention). For medical editors, understanding these criteria is crucial when reviewing radiation oncology literature, as they provide a common language for describing treatment-related side effects and are frequently referenced in clinical trial protocols and safety assessments.
Usage
Usage note: Often confused with CTCAE (Common Terminology Criteria for Adverse Events). RTOG specifically focuses on radiation-induced toxicity.
In Context
- "Late pulmonary toxicity was graded using RTOG criteria with three patients experiencing Grade 2 pneumonitis." — Clinical trial manuscript
- "The protocol specified RTOG criteria for dose-limiting toxicity assessment." — Research protocol