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Radiation Oncology

Overview

What is Radiation Oncology?

Radiation oncology is part of the larger oncology field and uses precisely targeted high-energy rays to treat cancer. Unlike chemotherapy, which is systemic, it focuses its effects on a specific area, sparing the surrounding healthy tissue. It's a cornerstone of modern cancer care, used either alone or alongside surgery, chemotherapy and immunotherapy.

Modern radiation oncology has advanced enormously compared to what was available a decade or two ago. Today's techniques are far more accurate, significantly safer and generally much better tolerated.

Radiation works by damaging the DNA inside cancer cells. From the first consultation through simulation, daily treatments and long-term follow-up care, a radiation oncologist is the medical doctor who oversees this entire process. The goal is to destroy cancer cells, stop them from growing and dividing, or shrink tumours sufficiently to relieve unpleasant symptoms and improve overall quality of life.

Types of Radiation Oncology Treatments

Radiation therapy is not a one-size-fits-all approach, with several different techniques existing. The right one depends on the type, size, location and behaviour of the tumour being treated.

External Beam Radiation Therapy

External Beam Radiation Therapy is the most common form. This is when a large machine called a linear accelerator directs beams from outside the body into the tumour. While the machine moves around them, the patient lies still on a treatment table. Doses are then delivered from multiple angles. Completely painless, each session takes only a few minutes, with most patients coming in daily for several weeks, then going about their normal day afterwards.

Intensity-Modulated Radiation Therapy (IMRT)

Intensity-Modulated Radiation Therapy (IMRT) is an advanced version. It shapes the dose very precisely to match a tumour's three-dimensional contour, no matter how irregular. The beam intensity varies across different areas, while it delivers higher doses to dense parts of the cancer, all while reducing exposure to nearby sensitive organs like the eye or spinal cord. For tumours near critical structures, this can be particularly valuable.

Image-Guided Radiation Therapy (IGRT)

Image-Guided Radiation Therapy adds another layer of precision, where, before each session, quick scans are done to confirm the tumour's position, accounting for small movements like breathing. To ensure radiation hits exactly where it should every time, even if the tumour has shifted even a few millimetres, the machine adjusts before delivering the dose.

Stereotactic Body Radiation Therapy (SBRT)

Stereotactic Body Radiation Therapy delivers extremely high doses in just one to five sessions. It's often used for small tumours in the lungs, liver or spine. Brachytherapy is entirely different, where tiny radioactive seeds are placed directly inside or next to the tumour. It delivers a concentrated dose where needed most, while the rest of the body receives very little exposure. This is common for prostate, gynaecological and breast cancers.

A referral to a radiation oncology specialist typically comes from an oncologist or surgeon and can be recommended at different stages. This is usually done after a cancer diagnosis. It is the primary treatment aiming for a cure for some, especially for localised cancers that respond well to radiation. For others, it follows surgery to clear any remaining microscopic cancer cells. This is called adjuvant therapy. It significantly reduces the chance of recurrence.

To make removal easier with clean margins, sometimes radiation is given before surgery to shrink a larger tumour first, which is known as neoadjuvant therapy. Radiation can be invaluable as palliative treatment for patients with advanced or metastatic cancer. It can reduce pain from bone metastases, stop bleeding from a tumour or relieve pressure on the spinal cord.

Anyone diagnosed with a solid tumour should consider speaking with a radiation oncology specialist. This will help them understand all their options better. Even if surgery or chemotherapy has already been discussed, radiation might offer a less invasive alternative or a valuable addition. Anyone experiencing troublesome symptoms from a known cancer should also ask whether palliative radiation could provide quick relief.

The decision to use radiation therapy is never made lightly. It follows a thorough diagnostic process that maps out the cancer in exquisite detail. This begins with imaging studies. CT scans, MRI scans and PET scans show the tumour's exact size, shape and location. They also show whether it has spread to nearby lymph nodes or distant organs like the liver or bones.

A simulation, which is the name given to a dedicated planning session, takes place once a patient is considered suitable for radiation. While imaging scans are performed, the patient lies in the exact treatment position. Small permanent marks or tiny tattoo dots may be placed on the skin. This is to ensure the same position can be reproduced accurately for every single treatment session, sometimes weeks apart.

During simulation, the entire radiation oncology team works out exactly where to direct the beams and how much dose each area should receive. This planning process can take several days for complex cases requiring IMRT, or longer. The goal is always the same. This is to maximise the dose delivered to the tumour while keeping the dose to surrounding organs as low as reasonably possible. Careful balance like this is what makes modern radiation both effective and safe.

  • Breast Cancer
  • Prostate Cancer
  • Lung Cancer
  • Head and Neck Cancers
  • Colorectal and Gastrointestinal Cancers
  • Gynaecological Cancers
  • Brain Tumours – Both primary and metastatic
  • Bone Metastases
  • Skin Cancers – Including non-melanoma types where surgery is not ideal

Personalised and compassionate care are at the centre of our philosophy at NMC. Delivered by experienced specialists, the team understands the fear and uncertainty that accompany a cancer diagnosis. We walk alongside our patients at every step, with them from the first nervous consultation all the way through the final follow-up appointment. The modern linear accelerators and advanced imaging technologies that we house allow us to deliver precise treatments while working to minimise side effects.

We offer the full spectrum of radiation oncology services, from curative-intent treatment to palliative relief. Our team provides the same international standards of care within the NMC network across the UAE for patients searching for radiation oncology treatment. Our radiation oncologists work closely with medical oncologists, surgeons, pathologists and dedicated nursing staff to ensure no aspect of a patient's wellbeing is overlooked. For patients looking for radiation oncology in Abu Dhabi, Dubai, Sharjah, Ajman, Ras Al Khaimah and Al Ain or anywhere else in the country, an integrated and consistent standard of care will meet you at every NMC facility.

Our team of radiation oncologists have advanced training from leading international cancer centres. They bring years of experience treating a full spectrum of solid tumours. A dedicated team of medical physicists who verify every treatment plan with pinpoint accuracy supports them. Radiation therapists who guide patients through each session with patience and reassurance are also part of the team.

Facing radiation therapy can raise countless questions and often significant anxiety. Our team understands this. Our consultants are patient. Consultations are a careful walk-through of exactly what radiation will involve for that specific patient. Honest discussions take place about expected side effects and practical strategies to manage them. For patients seeking radiation oncology treatment in the UAE across Abu Dhabi, Dubai, Sharjah, Ajman, Ras Al Khaimah and Al Ain, our specialists are known for their clinical rigour and their genuine willingness to help.

FAQs

Find the Answer to Your Medical Questions

Frequently Asked Questions

The treatment itself is completely painless. It’s similar to having a diagnostic X-ray or CT scan. Some patients experience skin irritation or fatigue later in their course of treatment. These effects can vary significantly. They are managed carefully by the clinical team.
For standard external beam therapy, there is no radiation left in your body after each treatment session. It is perfectly safe to be around family members immediately afterwards, including children and pregnant women. Radioactive material remains temporarily inside the body and because of this Brachytherapy involves different precautions. Your doctor will explain everything in detail.
This depends entirely on the type and purpose of treatment. Curative courses run for several weeks typically. Daily sessions have about ten to fifteen minutes of actual treatment time. Palliative courses are often much shorter. They are sometimes just one to five sessions spread over a week or two.
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