• You will not see or feel anything
during the treatment but may hear
a faint buzzing sound.
• You will be monitored by a camera
and an audio intercom during the
• Your treatments will be scheduled
with the radiation therapists for
Monday through Friday.
• You will see your doctor and a
nurse at least once a week while
you are having treatment.
• If you have questions or concerns
between these visits, ask to see a
nurse after your treatment.
This information is meant to provide
you with a better understanding of the
IMRT process. Please ask your doctor any
questions you may have about this form of
For more information on
radiation therapy services,
please contact us at:
Upstate Cancer Center
Department of Radiation Oncology
750 E. Adams Street
Syracuse, NY 13210
Radiation Therapy (IMRT)
F86856 Rev. 9/2010
Intensity Modulated Radiation Therapy (IMRT)
Your doctor has chosen Intensity
Modulated Radiation Therapy or IMRT as
the type of radiation therapy that you will
receive. IMRT uses a high-energy x-ray
beam to destroy cancer cells or keep them
• With IMRT, the strength of the
radiation beam can be adjusted
which allows your doctor to give
high doses of radiation to the tumor
and avoid nearby healthy tissues.
• A more tightly focused beam of
radiation dose can be delivered to
tumors than with other radiation
• Your doctor will decide if the
entire treatment course will be
given using IMRT or if IMRT will
be combined with conventional
• Radiation treatments are painless.
You will not feel anything while
you are being treated.
Preparation for IMRT
• During your first planning visit, a special positioning device will be made for you. The
device is used to help you stay in the same position for each treatment.
• A CT scan will be done in the treatment position, using the device. The scan will help
your doctor map out the area to be treated.
• Marks may be put on your skin to help position you for treatment.
• After your CT, you may go home.
• Your doctor will spend the next several days designing your treatment plan. The CT
scan is used along with a computer to develop the best possible treatment plan.
• When the plan is complete, you may be scheduled to return for a simulation.
• Simulation is a separate appointment that may be needed before you begin treatment.
X-rays are taken with you in the treatment position exactly as you will be during
treatment. The steps in simulation are based on the IMRT plan that was made for
you. When you are finished, you will be given an appointment to return for your first
• Daily treatments, are given in the
linear accelerator room by a team
of Radiation Therapists.
• Each treatment lasts between 15
and 30 minutes.
• Much of that time the therapists
will be making sure that you are in
the correct treatment position.
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