Image-guided Radiotherapy (IGRT)

When treating cancerous tumors with radiation, your Mercy team may use X-rays, ultrasound or CT scans to guide the delivery of the radiation. The precision provided by image-guided radiotherapy (IGRT) is important because tumors can change shape, change size or shift location from day to day.

The prostate, for example, moves slowly and may only require imaging before each treatment session. But a fast-moving organ such as the lungs may require frequent imaging tests during treatment. If your tumor has moved, your radiation therapy team will reposition your body and re-target your radiation to pinpoint your tumor more precisely.

What are the advantages of IGRT?

  • Higher doses of targeted radiation may be used to control the cancer.
  • Surrounding healthy tissue receives less exposure to radiation.
  • Treatment planning, patient positioning and radiation treatment happen all in one place.
  • Your length of treatment may be shortened.

Mercy cancer specialists are skilled in using IGRT as well as intensity-modulated radiation therapy (IMRT) to treat all types of cancer. Our goal is to provide complete and compassionate care and to get back to an active, cancer-free life.

Providers Nearby

Nathan Yennumi Tonlaar, MD, Radiation Oncology, Mercy
Radiation Oncology
Mercy Clinic
 | Offers E-Visits
What is an E-Visit?
158.7 miles
Andria Marie Gibb, PA, Radiation Oncology, Mercy
Radiation Oncology
Mercy Clinic
158.7 miles
Kimberly M. Creach, MD, Radiation Oncology, Mercy
Radiation Oncology
Mercy Clinic
158.7 miles
Christopher Fleighton Estes, MD, Radiation Oncology, Mercy
Radiation Oncology
Mercy Clinic
158.7 miles

Locations Nearby

Mercy Cancer Center - Jefferson

  • 1420 Highway 61 South
    Festus, MO 63028
  • (636) 931-3655
  • Hours of Operations:
    Monday-Thursday: 9 a.m. - 5 p.m. Friday: 8:30 a.m. - 4:30 p.m.
96.9 Miles

Mercy Cancer Center - Patients First Drive

  • 901 Patients First Drive
    Washington, MO 63090
  • (636) 390-1600
  • Hours of Operations:
    Monday-Friday: 8 a.m. - 4:30 p.m.
125.2 Miles

David C. Pratt Cancer Center

  • 607 S. New Ballas Road
    Saint Louis, MO 63141
  • (314) 251-4800
  • Hours of Operations:
    Monday-Friday: 8 a.m. - 4:30 p.m.
127.8 Miles

Related Conditions

Related Resources

Related Tests

Image-guided Radiotherapy (IGRT)