Professional Technical In the Industry Vocabulary Test

IMRT

Also written as: IMRT — Intensity-Modulated Radiation Therapy

A radiation therapy technique that modulates beam intensity across the treatment field to conform dose distribution to tumor shape while sparing normal tissues.

Full Definition

Intensity-Modulated Radiation Therapy (IMRT) is an advanced radiotherapy technique that uses computer-controlled linear accelerators to deliver precise radiation doses to malignant tumors. The technique modulates the intensity of radiation beams across multiple angles, allowing for highly conformal dose distributions that minimize exposure to surrounding healthy tissues. IMRT requires sophisticated treatment planning systems and quality assurance protocols. This approach is particularly beneficial for tumors located near critical organs or structures.

Usage

Usage note: Always capitalize as acronym; avoid confusion with image-guided techniques

In Context

"The treatment plan utilized IMRT to deliver 60 Gy while maintaining spinal cord dose below tolerance." — Radiation oncology report
"IMRT planning revealed superior target coverage compared to conventional techniques." — Treatment planning documentation

Also known as

intensity modulation therapy

Contrasted with

conventional radiotherapy 3D conformal radiation therapy

Don't confuse with

IGRT VMAT stereotactic radiotherapy

Immunotherapy Response Assessment in Solid Tumors ← Back to glossary Intensity-Modulated Radiation Therapy