Intensity modulated radiation therapy or IMRT is one of the most advanced treatment methods available in external beam radiation therapy. When this treatment is administered, beams of radiation strike the tumor target after passing through a component in the IMRT machine which acts much like a filter.
Besides, what is IMRT technique?
Intensity-modulated radiotherapy (IMRT) uses linear accelerators to safely and painlessly deliver precise radiation doses to a tumor while minimizing the dose to surrounding normal tissue. Your radiation oncologist will speak with you to determine whether IMRT is the most appropriate treatment for you.
What does Igrt mean?
Image-guided radiation therapy
Advantages of IMRT for breast cancer. IMRT directs radiation at the breast tumor and modulates the intensity of the radiation beams, helping to spare healthy tissue surrounding the breast tumor. IMRT allows each dose of radiation to be custom-tailored according to the geometrical shape of the breast tumor.
Intensity-modulated radiation therapy (IMRT) is an advanced type of radiation therapy used to treat cancer and noncancerous tumors. IMRT uses advanced technology to manipulate photon and proton beams of radiation to conform to the shape of a tumor.
Intensity-modulated radiation therapy (IMRT) is a type of external beam radiation that uses computer-controlled radiation beams in conjunction with three-dimensional computed tomography images of the tumor site and surrounding area.
A linear accelerator (LINAC) is the device most commonly used for external beam radiation treatments for patients with cancer. The linear accelerator is used to treat all parts/organs of the body. It delivers high-energy x-rays or electrons to the region of the patient's tumor.
Volumetric modulated arc radiotherapy (VMAT) VMAT is a new type of IMRT technique. The radiotherapy machine rotates around the patient during treatment. The machine continuously reshapes and changes the intensity of the radiation beam as it moves around the body.
The goal of three-dimensional conformal radiotherapy (3D-CRT) is to deliver a conformal dose distribution to tumors, while sparing surrounding normal structures. The use of patient specific 3D images in the treatment planning process distinguishes 3D-CRT from conventional radiotherapy.
3D conformal radiation therapy is a cancer treatment that shapes the radiation beams to match the shape of the tumor. 3D conformal therapy is — in many ways — like intensity-modulated radiation therapy (IMRT). They both target cancer while sparing healthy tissue.
Stereotactic Body Radiation Therapy (SBRT) is a treatment procedure similar to central nervous system (CNS) stereotactic radiosurgery, except that it deals with tumors outside of the CNS. A stereotactic radiation treatment for the body means that a specially designed coordinate-system is used for the exact.
A type of therapy in which radiation is aimed at a tumor from many different directions. The patient lays on a table and is moved through a donut-shaped machine. Tomotherapy is a type of intensity-modulated radiation therapy (IMRT). Also called helical tomotherapy.
Stereotactic radiosurgery can cause:
- skin problems, such as red, swollen, peeling, or blistering skin.
- hair loss in treatment area.
- difficulty swallowing.
- nausea and vomiting.
- swelling, especially of the brain.
Stereotactic radiosurgery (SRS) uses many precisely focused radiation beams to treat tumors and other problems in the brain, neck and other parts of the body. Like other forms of radiation, stereotactic radiosurgery works by damaging the DNA of the targeted cells.
Depending on the area being treated, other early side effects may include:
- hair loss in the treatment area.
- mouth problems and difficulty swallowing.
- eating and digestion problems.
- nausea and vomiting.
- soreness and swelling in the treatment area.
- urinary and bladder changes.
Radiation therapy uses high-energy beams called x-rays to destroy cancer cells by damaging their DNA. It's very effective at controlling or eliminating tumors at specific sites in the body. The treatment can be given to cure patients whose lung cancers are confined to the chest but cannot be removed surgically.
Men with localised prostate cancer who are treated with external-beam radiation therapy have a cure rate of 95.5% for intermediate-risk prostate cancer and 91.3% for high-risk prostate cancer. The 5-year survival rate using this treatment is 98.8% overall.
But if radiation therapy is aimed at a part of the body that grows hair, such as the scalp, a person may have hair loss.
- Skin problems. Some people who receive radiation therapy experience dryness, itching, blistering, or peeling.
- Long-term side effects.
- Head and neck.
- Stomach and abdomen.
External-beam radiation therapy delivers radiation from a machine outside the body. Each session is quick and painless, lasting about 15 minutes. Typically, patients have treatment sessions 5 times per week (Monday through Friday). This schedule continues for 3 to 9 weeks.
At high doses, radiation therapy kills cancer cells or slows their growth by damaging their DNA. Cancer cells whose DNA is damaged beyond repair stop dividing or die. Radiation therapy does not kill cancer cells right away.
The off-line approach is one in which the intervention is determined from an accumulation of information that may be drawn from previous treatment sessions or other times of measurement. Here, in-room kV imag- ing refers to radiographic imaging using one or more kV x-ray modalities in the treatment room.