Image-guided radiation therapy (IGRT)

Image-guided radiation therapy combines traditional radiation treatment with a simultaneous CT scan to allow physicians greater precision and accuracy when targeting and treating cancerous tumors.

Traditionally, three-dimensional CT scans of a patient’s anatomy are created prior to radiation treatments, and the same scan is used during the course of the patient’s therapy. But administering precise radiation doses can be difficult because tumors constantly move within the body and may be in a slightly different position during each treatment.

IGRT counters that problem by providing physicians a CT image of the target tumor just prior to each radiation treatment. IGRT allows physicians to adjust the radiation beam as needed to accurately destroy the tumor, not the surrounding healthy tissue that can be damaged if radiation is not delivered with a high degree of accuracy and precision.

The procedure is available at Bristol Regional Medical Center.

If you have questions, please call the Wellmont Nurse Connection at 1-877-230-NURSE.


American Cancer Society
Susan G. Komen Breast Cancer Foundation
National Cancer Institute
National Coalition for Cancer Survivorship
American Dietetics Association
American College of Surgeons