What is IMRT? Discover an intelligent technology
IMRT stands for Intensity-Modulated Radiation Therapy meaning “Intensity-modulated radiotherapy” .
To understand this technique, imagine a tumor with an irregular shape lying next to sensitive organs such as the spinal cord, heart or eye.
Traditional radiotherapy used beams of uniform intensity, which could also affect surrounding healthy tissue.
However, IMRT machines act like a intelligent paintbrush This technology allows the specialist to shape radiation to the tumor's three-dimensional form and, more importantly, vary beam intensity in different areas.
This delivers the highest amount of radiation to the tumor while minimizing exposure to surrounding healthy tissue.
Why has your doctor recommended IMRT?
There are important reasons to choose this technique, directly related to treatment precision and protecting healthy tissue.
Highly precise targeting
Radiation is directed precisely at the target area to focus treatment on the tumor.
Protecting healthy tissues
Vital organs near the tumor are protected from unnecessary radiation as far as possible.
Reducing side effects
Reducing radiation to healthy tissue may also reduce the likelihood of some unwanted effects.
More precise planning
The team can plan radiation dose distribution more precisely according to the patient's needs.
IMRT treatment stages
Uncertainty about treatment stages is a major source of stress. IMRT is usually an outpatient treatment planned step by step.
Step 1: Simulation and imaging
First, the treatment area is scanned using CT. Immobilization devices, such as special cushions or masks, may be used to keep the body in the same position at every session.
Making these devices is usually painless; their main purpose is to improve treatment precision.
Step 2: Treatment planning
The radiation oncologist and medical physicists use advanced computer software to design the three-dimensional treatment plan.
This process determines the beam angles and intensities used to deliver radiation to the target area.
Step 3: Daily treatment sessions
Radiotherapy begins once the treatment plan is ready. The patient lies on the machine's couch, and technicians position the body precisely as planned.
The machine then moves around the patient, delivering radiation according to the treatment plan.
Is IMRT painful?
No. Radiotherapy beams cannot be seen or felt, and radiation delivery itself is usually painless.
Radiation delivery usually takes just a few minutes, but total time in the treatment room may be longer depending on the patient's circumstances.
Side effects: what you should know
IMRT can help reduce unnecessary radiation to healthy tissue. However, radiotherapy may still cause side effects depending on treatment location, dose and individual patient factors.
Some patients may develop fatigue, skin changes in the treatment area or other effects related to the area being treated.
Important: Side effects vary in type and severity. The medical team monitors patients during treatment and provides advice and care to manage them.
Answers to patients' frequently asked questions
Will my body become radioactive after IMRT?
No. With external radiotherapy such as IMRT, radiation is delivered only while the machine is active, and no radiation remains in the body afterwards.
Can I continue my daily activities during treatment?
Many patients can continue some daily activities according to their condition and the care team's advice, although appropriate activity levels vary between patients.
Is IMRT suitable for everyone?
The radiotherapy technique depends on the tumor type, location and size, the patient's condition and the specialist's assessment. IMRT suitability must therefore be evaluated individually.