Treatment FAQ

how do they do radiation treatment

by Gerry McLaughlin Published 2 years ago Updated 2 years ago
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You receive systemic radiation therapy by swallowing, through a vein via an IV line, or through an injection. With systemic radiation, your body fluids, such as urine, sweat, and saliva, will give off radiation for a while.Jan 8, 2019

What to expect during and after radiation treatments?

Radiation therapy can be given in 3 ways: External radiation (or external beam radiation): uses a machine that directs high-energy rays from outside the body into... Internal radiation: Internal radiation is also called brachytherapy. A radioactive source is …

What are the pros and cons of radiation therapy?

Jan 08, 2019 · How radiation therapy works against cancer 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. When the damaged cells die, they are broken down and removed by the body. Radiation therapy does not kill cancer cells right away.

What is the success rate of radiation therapy?

What happens during your radiation therapy treatment depends on the kind of radiation therapy you receive. External-beam radiation therapy. External-beam radiation therapy delivers radiation from a machine outside the body. It is the most common radiation therapy treatment for cancer. Each session is quick, lasting about 15 minutes.

How long does it take to recover from radiation treatment?

Internal radiation therapy. You'll get radiation placed inside you in either solid or liquid form. You might swallow or get an IV injection of liquid radioactive iodine, which will travel...

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How long does a radiation treatment take?

How long does radiation therapy take? Each radiation therapy treatment takes about 10 minutes. Radiation therapy to try and cure cancer is usually delivered daily, Monday through Friday, for about five to eight weeks. Weekend breaks allow normal cells to recover.

Is radiation therapy painful?

Does radiation therapy hurt? No, radiation therapy does not hurt while it is being given. But the side effects that people may get from radiation therapy can cause pain and discomfort. This booklet has a lot of information about ways that you and your doctor and nurse can help manage side effects.

What are the most common side effects of radiation therapy?

The most common early side effects are fatigue (feeling tired) and skin changes. Other early side effects usually are related to the area being treated, such as hair loss and mouth problems when radiation treatment is given to this area. Late side effects can take months or even years to develop.Dec 10, 2020

Is radiation worse than chemo?

Since radiation therapy is focused on one area of your body, you may experience fewer side effects than with chemotherapy. However, it may still affect healthy cells in your body.Mar 27, 2020

Do tumors grow back after radiation?

Normal cells close to the cancer can also become damaged by radiation, but most recover and go back to working normally. If radiotherapy doesn't kill all of the cancer cells, they will regrow at some point in the future.Jul 6, 2020

How do you feel after radiation?

Skin changes. Some people who receive radiation therapy experience dryness, itching, blistering, or peeling. These side effects depend on which part of the body received radiation therapy and other factors. Skin changes from radiation therapy usually go away a few weeks after treatment ends.

What can you not do during radiation treatment?

Avoid raw vegetables and fruits, and other hard, dry foods such as chips or pretzels. It's also best to avoid salty, spicy or acidic foods if you are experiencing these symptoms. Your care team can recommend nutrient-based oral care solutions if you are experiencing mucositis or mouth sores caused by cancer treatment.Nov 8, 2021

How long does it take to recover from radiation therapy?

Side effects can happen any time during, immediately after or a few days or weeks after radiation therapy. Most side effects generally go away within a few weeks to 2 months of finishing treatment.

What is the success rate of radiation therapy?

When it comes to early stages of disease, patients very frequently do well with either brachytherapy or external beam radiation. Success rates of around 90% or higher can be achieved with either approach.Oct 25, 2016

Do you lose hair with radiation?

Radiation therapy also can cause hair loss Radiation therapy also attacks quickly growing cells in your body, but unlike chemotherapy, it affects only the specific area where treatment is concentrated. If you have radiation to your head, you'll likely lose the hair on your head.

What comes first chemo or radiation?

If early-stage breast cancer is going to be treated with both chemotherapy and external beam radiation therapy, chemotherapy usually is given first. Radiation generally starts after chemotherapy is done.Sep 25, 2011

Does radiation shorten your life?

"Rapidly dividing cells, such as cancer cells, are more affected by radiation therapy than normal cells. The body may respond to this damage with fibrosis or scarring, though this is generally a mild process and typically does not cause any long-term problems that substantially affect quality of life."

What Is Radiation Therapy?

Radiation therapy uses high-energy particles or waves, such as x-rays, gamma rays, electron beams, or protons, to destroy or damage cancer cells.Yo...

Who Gets Radiation Therapy?

More than half of people with cancer get radiation therapy. Sometimes, radiation therapy is the only cancer treatment needed.

What Are The Goals of Radiation Therapy?

Most types of radiation therapy don’t reach all parts of the body, which means they’re not helpful in treating cancer that has spread to many place...

How Is Radiation Therapy given?

Radiation therapy can be given in 3 ways: 1. External radiation (or external beam radiation): uses a machine that directs high-energy rays from out...

Who Gives Radiation Therapy Treatments?

During your radiation therapy, a team of highly trained medical professionals will care for you. Your team may include these people: 1. Radiation o...

Does Radiation Therapy Cause Cancer?

It has long been known that radiation therapy can slightly raise the risk of getting another cancer. It’s one of the possible side effects of treat...

Does Radiation Therapy Affect Pregnancy Or Fertility?

Women: It’s important not to become pregnant while getting radiation – it can harm the growing baby. If there’s a chance you might become pregnant,...

Questions to Ask About Radiation Therapy

Before treatment, you’ll be asked to sign a consent form saying that your doctor has explained how radiation therapy may help, the possible risks,...

Will I Be Radioactive During Or After External Radiation Treatment?

External radiation therapy affects cells in your body only for a moment. Because there’s no radiation source in your body, you are not radioactive...

How is radiation given?

Radiation therapy can be given in 3 ways: 1 External radiation (or external beam radiation): uses a machine that directs high-energy rays from outside the body into the tumor. It’s done during outpatient visits to a hospital or treatment center. It's usually given over many weeks and sometimes will be given twice a day for several weeks. A person receiving external radiation is not radioactive and does not have to follow special safety precautions at home. 2 Internal radiation: Internal radiation is also called brachytherapy. A radioactive source is put inside the body into or near the tumor. With some types of brachytherapy, radiation might be placed and left in the body to work. Sometimes it is placed in the body for a period of time and then removed. This is decided based on the type of cancer. Special safety precautions are needed for this type of radiation for a period of time. But it's important to know if the internal radiation is left in the body, after a while it eventually is no longer radioactive. 3 Systemic radiation: Radioactive drugs given by mouth or put into a vein are used to treat certain types of cancer. These drugs then travel throughout the body. You might have to follow special precautions at home for a period of time after these drugs are given.

How does radiation help cancer cells?

But cancer cells grow and divide faster than most normal cells. Radiation works by making small breaks in the DNA inside cells. These breaks keep cancer cells from growing and dividing and cause them to die.

What doctor is trained to treat cancer?

Radiation oncologist: This doctor is specially trained to treat cancer with radiation. This person oversees your radiation treatment plan. Radiation physicist: This is the person who makes sure the radiation equipment is working as it should and that it gives you the exact dose prescribed by your radiation oncologist.

What is the treatment for cancer that has returned?

To treat cancer that has returned (recurred) If a person's cancer has returned (recurred), radiation might be used to treat the cancer or to treat symptoms caused by advanced cancer. Whether radiation will be used after recurrence depends on many factors.

Why do people get radiation to their head?

This is done to help prevent cancer from spreading to the head even before it can.

How does cancer spread?

Cancer can spread from where it started to other body parts. Doctors often assume that a few cancer cells might already have spread even when they can’t be seen on imaging scans like CT scans or MRIs. In some cases, the area where the cancer most often spreads to may be treated with radiation to kill any cancer cells before they grow into tumors. For instance, people with certain kinds of lung cancer may get radiation to the head, even when there is no cancer known to be there, because their type of lung cancer often spreads to the brain. This is done to help prevent cancer from spreading to the head even before it can. Sometimes, radiation to prevent future cancer can be given at the same time that radiation is given to treat existing cancer, especially if the area the cancer might spread to is close to the tumor itself.

How many people with cancer get radiation?

More than half of people with cancer get radiation therapy. Sometimes, radiation therapy is the only cancer treatment needed and sometimes it's used with other types of treatment. The decision to use radiation therapy depends on the type and stage of cancer, and other health problems a patient might have.

When should radiation therapy be given?

Radiation therapy may be given before, during, or after these other treatments to improve the chances that treatment will work. The timing of when radiation therapy is given depends on the type of cancer being treated and whether the goal of radiation therapy is to treat the cancer or ease symptoms.

How does radiation help cancer?

When radiation is combined with surgery, it can be given: 1 Before surgery, to shrink the size of the cancer so it can be removed by surgery and be less likely to return. 2 During surgery, so that it goes straight to the cancer without passing through the skin. Radiation therapy used this way is called intraoperative radiation. With this technique, doctors can more easily protect nearby normal tissues from radiation. 3 After surgery to kill any cancer cells that remain.

What is intraoperative radiation therapy?

During surgery, so that it goes straight to the cancer without passing through the skin. Radiation therapy used this way is called intraoperative radiation.

What is brachytherapy with liquid source?

Learn more about brachytherapy. Internal radiation therapy with a liquid source is called systemic therapy. Systemic means that the treatment travels in the blood to tissues throughout your body, seeking out and killing cancer cells.

What is the best radiation treatment for thyroid cancer?

A systemic radiation therapy called radioactive iodine, or I-131, is most often used to treat certain types of thyroid cancer.

What is the treatment for cancer that has spread to the bone called?

Pain from cancer that has spread to the bone can be treated with systemic radiation therapy drugs called radiopharmaceuticals.

Why do people with cancer need radiation?

Why People with Cancer Receive Radiation Therapy. Radiation therapy is used to treat cancer and ease cancer symptoms . When used to treat cancer, radiation therapy can cure cancer, prevent it from returning, or stop or slow its growth. When treatments are used to ease symptoms, they are known as palliative treatments.

What to expect when getting radiation therapy?

What to Expect When Having Radiation Therapy. It is normal to feel worried or overwhelmed when you learn that you will need radiation therapy. However, learning more about this type of cancer treatment may help you feel more prepared and comfortable.

How long does radiation therapy last?

It is the most common radiation therapy treatment for cancer. Each session is quick, lasting about 15 minutes. Radiation does not hurt, sting, or burn when it enters the body.

What type of doctor is responsible for radiation therapy?

Radiation oncologist. This type of doctor specializes in giving radiation therapy to treat cancer. A radiation oncologist oversees radiation therapy treatments. They work closely with other team members to develop the treatment plan. Radiation oncology nurse.

What is simulation in radiation therapy?

Simulating and planning treatment. Your first radiation therapy session is a simulation. This means it is a practice run without giving radiation therapy. Your team will use imaging scans to identify the tumor location.

Why is it important to be in the same position for radiation?

It is important for your body to be in the same position for each treatment. Your radiation oncology team cares about your comfort. Talk with the team to find a comfortable position that you can be in every time you come in for radiation therapy.

How often should you check for radiation?

During your treatment, your radiation oncologist will check how well it is working. Typically, this will happen at least once a week. If needed, they may adjust your treatment plan.

What is informed consent for radiation?

Giving permission for radiation therapy. If you choose to receive radiation therapy, your health care team will ask you to sign an "informed consent" form. Signing the document means: Your team gave you information about your treatment options. You choose to have radiation therapy.

How long does radiation treatment take?

A visit usually lasts 30 minutes to an hour, most of which is spent getting you in the correct position. The treatment itself usually takes 5 minutes or less.

What kind of radiation therapy is used for cancer?

The kind of radiation therapy you get depends on things like: The two main types of radiation therapy for cancer are: External beam radiation therapy . A large machine aims radiation beams from outside your body to a cancer tumor from many angles. It can treat a variety of cancers.

How to treat cancer before surgery?

The aim is to treat your cancer by slowing or stopping tumor growth. Your doctor may sometimes suggest you get radiation therapy to shrink a tumor before you get surgery. Or they may recommend it after surgery to keep a tumor from coming back. If cancer cells have spread to other parts of your body, radiation therapy can kill them ...

What is external beam radiation therapy?

External beam radiation therapy. A large machine aims radiation beams from outside your body to a cancer tumor from many angles. It can treat a variety of cancers. The machine can be quite noisy, but it won't touch you. It sends radiation to the specific area where there's cancer.

How does brachytherapy work?

They put it inside you using a small tube called a catheter or a device known as an applicator. Brachytherapy usually treats head, neck, breast, cervix, endometrial, prostate, and eye cancers. If your doctor uses a low dose of radiation in brachytherapy, they'll remove the implant after several days. If they use a higher dose, they usually take it ...

What is the treatment for cancer?

Radioembolization. Cancer Caused by Radiation Therapy. If you've been diagnosed with cancer, your doctor may suggest you get radiation therapy. It's a common treatment that shrinks tumors and kills cancer cells -- and might be the only one you need to tackle your disease.

How long does it take for radiation to go away?

If they use a higher dose, they usually take it out after 10 to 20 minutes, and you'll get two doses a day for around 2 to 5 weeks. Depending on the type and location of your cancer and the other treatments you've had, your doctor may also place an implant in your body permanently and the radiation will weaken with time.

How long does it take to relax after radiation?

After simulation, you’ll have a few days to a few weeks to relax while your radiation oncologist creates a unique plan of treatment taking into account your diagnosis, the type of radiation machine that will be used, the amount of radiation needed and the number of treatments to be given.

What is the first visit to radiation oncology?

Your first visit to radiation oncology is a consultation with the radiation oncologist and your care team including a resident physician and a registered nurse. You will not receive a radiation treatment at this visit . Plan to be in the clinic for two or more hours. This is an important visit to learn about your medical history and treatment needs. For most patients the visit will include:

What is a sim appointment?

For most types of treatment, a simulation (SIM) appointment will be scheduled. The purpose of this visit is to outline or map the exact area to be treated.

How long does it take for a doctor to review a cancer case?

It may take several minutes for the doctors to thoroughly review your case before they speak with you. After this visit you may be scheduled to start the radiation process, or you may be asked to return for a follow-up visit depending on the type of cancer and your individual treatment plans.

Can you get IV contrast?

Some patients will receive IV contrast. Be sure to follow any preparation instructions provided by your doctor or nurse. During the SIM visit the radiation therapist will discuss treatment times and reserve a space for you depending on how many treatments you’ll be receiving.

How long does it take to get radiation for rectal cancer?

Radiation treatments for rectal cancer may be delivered in small doses over five to six weeks of daily treatment, or they may be delivered in higher doses over a condensed time period of five days.

What type of radiation is used for rectal cancer?

The types of radiation treatments most commonly used for rectal cancer include: External beam radiation: this type of radiation delivers a beam of high-energy x-rays to a patient’s tumor from outside the body. Radiation oncologists at Johns Hopkins may use intensity-modulated radiation therapy ...

What is brachytherapy for rectal cancer?

Brachytherapy: Used less often than external beam radiation to treat rectal cancer, this radiation treatment is a targeted, high-dose treatment that is delivered directly in or near the tumor. Johns Hopkins is one of the only hospitals in the country to explore endorectal high-dose rate brachytherapy for rectal cancer, ...

What is IMRT in cancer?

Radiation oncologists at Johns Hopkins may use intensity-modulated radiation therapy (IMRT), which delivers targeted doses of radiation in a pattern to match the shape of the tumor; or image-guided radiation therapy (IGRT), which uses images taken before and during the radiation delivery to guide the treatment.

What is the imaging of rectum cancer?

Before radiation, chemotherapy or surgery for rectal cancer, imaging specialists may use one or more techniques to determine where the tumors are located in the rectum and how far they have spread into surrounding tissue and lymph node.

Can radiation be used for cancer?

In particular, radiation is recommended for patients with cancer that has spread to lymph nodes, or has spread beyond the wall of the rectum, as well as locally recurrent rectal cancers. Amol Narang, M.D., an associate professor of radiation oncology at Johns Hopkins and a member of the Rectal Cancer Multidisciplinary Clinic, ...

Is the small intestine sensitive to radiation?

In other cases, the small intestine may be in the field of radiation for tumors that occur very high in the rectum, closer to the colon. Since the small intestine is very sensitive to radiation, an intense five-day course of treatment might not be the first choice for patients and their radiation oncology team.

How does radiation work?

Radiation works by breaking the DNA in cancer cells which helps keep them from growing and can cause them to die. Most of the time, radiation is aimed at only the area that has cancer. It doesn’t reach the rest of the body.

What is caregiving during radiation treatment?

October 18, 2019. Taking care of someone with cancer may involve learning some basics about radiation treatments. Radiation therapy is one of the most common treatments for some types of cancer. It may be used to cure a cancer or shrink tumors, stop cancer from coming back, ...

How long after radiation therapy can you touch a patient?

With systemic radiation therapy, you may also have to avoid the person's bodily fluids for a few days after treatment.

What is systemic radiation?

Another type is systemic radiation, when a radioactive drug is used and either given by mouth or put into a vein. External and internal radiation therapy mostly affect only the part of the body that has cancer while systemic radiation travels throughout the body.

What does it mean when you feel tired?

Fatigue means feeling very tired in the body and mind and is different from tiredness felt on a usual day. Usually, fatigue is not caused by treatment alone, but things like low blood counts, stress or emotions. It’s normal for patients to feel anxious, depressed, afraid, angry, frustrated, alone, or helpless.

How to help a cancer patient with fatigue?

Staying active while also getting enough rest and eating a healthy diet may help. Talk to the cancer care team about other ways to manage fatigue. External beam radiation can make the skin in the area being treated look and feel like it’s been sunburned. It may hurt or itch, peel, or become flaky.

What are the side effects of radiation?

Some people may have many side effects, while others may have very few. The most common side effects are skin problems and fatigue.

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Why It's Done

Treatment for cancer involving radioactive energy to destroy the cancer cells and their division.

Treatment for: Cancer

Type of procedure: Noninvasive

Recovery time: Can take several days

Duration: Few minutes

Hospital stay: Not typically needed

Risks

How You Prepare

What You Can Expect

  • More than half of all people with cancer receive radiation therapy as part of their cancer treatment. Doctors use radiation therapy to treat just about every type of cancer. Radiation therapy is also useful in treating some noncancerous (benign) tumors.
See more on mayoclinic.org

Results

  • Radiation therapy side effects depend on which part of your body is being exposed to radiation and how much radiation is used. You may experience no side effects, or you may experience several. Most side effects are temporary, can be controlled and generally disappear over time once treatment has ended. Some side effects may develop later. For example, in rare circumsta…
See more on mayoclinic.org

Clinical Trials

  • Before you undergo external beam radiation therapy, your health care team guides you through a planning process to ensure that radiation reaches the precise spot in your body where it's needed. Planning typically includes: 1. Radiation simulation.During simulation, your radiation therapy team works with you to find a comfortable position for you during treatment. It's imperative that you li…
See more on mayoclinic.org

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