Department of Radiation Oncology
Radiation Therapy is indispensable and pertinent in the treatment of cancer. A linear accelerator that produces high doses of ionising radiation to target and destroy cancer cells is used. This therapeutic approach aims to damage the DNA within cancer cells, destroying their ability to divide and grow. Radiation therapy can be employed as a standalone treatment or in combination with surgery, chemotherapy, or immunotherapy, depending on the type and stage of the cancer.
There are two types of radiation therapy:
- External beam radiation and
- Brachytherapy
External beam radiation involves directing radiation from a machine outside the body towards the cancer site. This method allows for precise targeting while minimising exposure to surrounding healthy tissues.
Brachytherapy, on the other hand, entails placing radioactive sources directly into or near the tumour, providing a localised and intense dose of radiation.
Brachytherapy, on the other hand, entails placing radioactive sources directly into or near the tumour, providing a localised and intense dose of radiation.
External beam radiation
Advancements in technology, such as image-guided radiation therapy (IGRT), intensity-modulated radiation therapy (IMRT), RapidArc, SRT, and stereotactic body radiation therapy (SBRT), have enhanced the precision and effectiveness of radiation delivery. These techniques enable oncologists to tailor treatments more precisely to the tumour, sparing healthy tissues and minimising side effects.
At Billroth, the linear accelerator we have is the Varian Clinac. Billroth is one of the first private hospitals in Chennai to introduce RapidARC.
The Varian Clinac is a widely used medical linear accelerator designed for external beam radiation therapy in the treatment of cancer. The Clinac is known for its versatility, accommodating a variety of treatment techniques, including intensity-modulated radiation therapy (IMRT), volumetric-modulated arc therapy (VMAT), and RapidArc. These advanced techniques optimise dose distribution and minimise radiation exposure to normal tissues, improving overall treatment outcomes.
Safety features, such as interlocks and monitoring systems, contribute to the secure operation of the Varian Clinac. The machine undergoes rigorous quality assurance testing to ensure reliability and adherence to stringent medical standards.
Brachytherapy
During brachytherapy, radioactive seeds or sources are inserted into or very close to the tumour site. This can be done through various methods, such as needles, catheters, or applicators, depending on the type and location of the cancer. The radioactive material emits radiation, damaging the DNA of nearby cancer cells and inhibiting their ability to divide and grow.
There are two main types of brachytherapy: intracavitary and interstitial. Intracavitary brachytherapy involves placing radioactive sources within a body cavity, such as the uterus or vagina, while interstitial brachytherapy involves implanting the sources directly into the tumour tissue.
We at Billroth have Gammamed Plus for brachytherapy. Gammamed Plus ensures precision and safety and is one of the best pieces of equipment in brachytherapy.
Radiation Oncologist Doctors
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