Radiation therapy for lung cancer

Radiation therapy for lung cancer plays a major role in treating both early and advanced stages. It uses strong beams of energy to kill cancer cells and shrink tumors. For many patients, especially those who cannot have surgery, this therapy is a key part of the treatment plan.

In this blog, we will explain how radiation therapy works, explore its benefits, describe side effects, and discuss different techniques like external beam radiation, SBRT, and IMRT. We will also look at how it fits into the overall treatment for lung cancer and why many people choose it.

How Radiation Therapy Works

Radiation therapy is a method that uses high-energy rays or particles to destroy cancer cells in the lungs. The goal is to target the tumor directly, without harming too much of the healthy tissue around it. Doctors use advanced imaging like a CT scan to plan the exact location, shape, and size of the radiation beams.

The process usually happens over several days or weeks. In each session, patients lie still while the machine delivers the doses of radiation. These treatments are painless, although they may cause side effects of radiation later on.

This therapy is used to treat early stage lung cancers, slow down the spread, and even relieve symptoms like shortness of breath or pain. In some cases, it helps prevent the cancer from spreading to the brain or other organs.

Why Radiation Therapy for Lung Cancer?

Many patients wonder why radiation therapy is an option. Here are three possible reasons:

It’s a Non-Surgical Option

Radiation therapy is the preferred choice for people who cannot have surgery due to other medical conditions. It’s non-invasive, meaning there’s no cutting or hospital stay.

It’s Targeted and Effective

This treatment focuses only on the tumor. It avoids much of the healthy tissue, which reduces the risk of long-term damage.

It Offers Symptom Relief

Radiation can ease pain, reduce shortness of breath, and improve quality of life. For patients with advanced cancer, this is a major benefit.

In some cases, radiation is combined with chemotherapy to improve results. This approach is often called “combined modality treatment” and helps to treat cancer more effectively.

Different Types of Radiation Therapy

Doctors use several kinds of radiation therapy for lung cancer. The choice depends on the cancer stage, tumor size, and health of the patient. Here are the most common types:

External Beam Radiation Therapy (EBRT)

This is the most common method. It uses a machine that sends high-energy rays from outside the body. EBRT helps in both small and large tumors, including small cell lung cancer.

Stereotactic Body Radiation Therapy (SBRT)

SBRT is very accurate. It gives a high dose of radiation to small tumors in fewer sessions. It works well for treat early stage lung cancers in people who cannot have surgery.

Intensity-Modulated Radiation Therapy (IMRT)

IMRT adjusts the radiation beams to fit the tumor’s shape. It protects nearby healthy tissues. It’s often used when the tumor is near important organs.

Brachytherapy

This is an internal method that places radioactive materials directly inside or near the tumor. It allows for high doses right at the source of the cancer.

Understanding the Side Effects of Radiation Therapy

While radiation is very helpful, it may cause some side effects. These effects depend on the dose, treatment area, and overall health. Here are the most common ones:

1. Fatigue

Many patients feel tired during and after treatment. This is normal and can last for weeks.

2. Skin Irritation

The skin in the treated area may turn red or feel sore. It often looks like a sunburn.

3. Cough or Shortness of Breath

Sometimes, radiation inflames the lungs. This can cause a dry cough or make breathing harder for a while.

4. Trouble Swallowing

If the esophagus is near the treatment area, swallowing may become painful.

5. Long-Term Risks

In rare cases, radiation can damage healthy organs or tissues. But with today’s advanced techniques, this risk is much lower.

Always talk to your doctor about any symptoms. They can give advice or medication to reduce discomfort. It’s important to stay hydrated and get enough rest.

Advances in Radiation Therapy for Lung Cancer

Modern technology has improved how we treat cancer with radiation. These upgrades help patients get better results with fewer side effects.

1. Image-Guided Radiation Therapy (IGRT)

IGRT uses real-time imaging to track tumors during treatment. It makes sure the beams hit the exact spot every time.

2. MRI-Guided Radiation

MRI scans provide clearer images than regular X-rays. This helps doctors plan and adjust treatment with high precision.

3. Proton Therapy

Proton therapy uses protons instead of X-rays. Protons stop when they reach the tumor, causing less harm to healthy tissues.

These new tools have made radiation therapy more accurate. They help doctors give higher radiation doses safely. That means better results for patients.

Getting Ready for Treatment and What Comes After

Getting radiation therapy involves several steps. Here’s what to expect:

Before Treatment

The care team does a CT scan to map out the tumor. They make a mask or mold to help keep your body still during sessions. Then, they create a treatment plan that includes the radiation treatments schedule and doses of radiation.

During Treatment

You will visit the radiation center regularly, often 5 days a week. Each session takes about 15 to 30 minutes. You won’t feel anything, but you must stay still while the machine works.

After Treatment

After finishing treatment, follow-up is important. Doctors will check how well the cancer responded. Regular scans will help find any changes early.

You might feel tired or notice changes in how your lungs work. Breathing exercises and a healthy diet can help. Support from family, friends, and your care team makes recovery easier.

Final Thoughts

Radiation therapy for lung cancer offers real hope. It can destroy cancer cells, kill tumors, and improve life quality. Whether used alone or with other therapies, it remains a trusted and proven method.

If you’re facing lung cancer, talk to your care team about the best therapy for lung cancer in your case. With tools like external beam radiation, SBRT, and IMRT, the chances of success have never been better.

Your Journey

Start Your Recovery

Our dedicated Patient Navigator will assist you with appointment scheduling. Contact us at +6012-3993260 (Call or Whatsapp ).

First Consultation

On appointment day, bring along all the medical reports and your identity documents, ie. identity card or passport. Our team will help you organize the medical reports for our oncologist to review. Our oncologist will discuss the treatment plan with you. Tele-consult is available for overseas patients.

Treatment Day

Come to our center on an agreed date and time for the treatment. Our team will take good care of you. You will be discharged on the same day. Yes, you will get to go home after every treatment visit as no overnight admission is required.

Stay on Track

Our dedicated patient navigator will be following up with you post treatment to check on your condition, to ensure that you are doing well. You will receive a reminder message on your phone for the next appointment date.

Dr. Christina Ng Van Tze

Consultant Medical Oncologist
Medical Director
MBBS (Melb) FRACP (Aus)

Monday - Friday : 08:00 AM TO 06:00 PM

Saturday : 08:00 AM TO 02:00 PM

D. Joseph K. Joseph

Consultant Medical Oncologist
MBBCH, BAO (IRE) MRCP (UK)

Wednesday : 08:00 AM TO 12:00 PM

Friday : 08:00 AM TO 12:00 PM

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Onco Life Centre Wins 2025 Best Oncology Clinic in Malaysia

We are proud to share that Onco Life Centre has been named the Oncology Clinic and Treatment Centre of the Year in Malaysia at the GlobalHealth Asia-Pacific Awards 2025, held in Bangkok.

This prestigious recognition is a testament to our unwavering commitment to delivering personalized, compassionate, and cutting-edge cancer care to our patients. The award reflects not just our clinical excellence, but our dedication to safety, community outreach, and innovation in oncology services.

The GlobalHealth Asia-Pacific Awards celebrate leading healthcare institutions across the region. Winners are chosen based on a comprehensive evaluation of criteria such as:

Excellence and Innovation: Transforming healthcare delivery and patient outcomes through progressive medical practices.
Patient Safety: Upholding the highest standards to ensure safe, comfortable, and effective treatment environments.
Community Involvement: Actively engaging in public awareness, screening programs, and care for underprivileged communities.
Technology Adoption: Integrating advanced diagnostics, therapies, and digital tools to enhance every aspect of care.
Impact and Measurable Results: Demonstrating tangible improvements in cancer detection, treatment success, and patient well-being.
Adaptability and Preparedness: Being resilient and forward-thinking in the face of global health challenges.
Leadership and Vision: Cultivating a culture that prioritizes empathy, innovation, and ongoing education.

This award inspires us to continue raising the bar in oncology care—not only through medical advancements but by remaining deeply rooted in our advocacy mission: to serve, educate, and empower every cancer patient, especially those most in need.

We dedicate this achievement to our patients, survivors, caregivers, and the entire Onco Life Centre community. Your courage fuels our purpose. Together, we will continue the fight—because every life matters.