Radiation Oncology is the branch of cancer medicine dealing with the administration of radiation therapy to cancer and certain benign conditions. As a treatment modality for cancer, radiation therapy has been around for more than 100 years. Radiation therapy is the use of high energy ionizing radiation to bring about cell death which in turn results in control and cure of cancer. The forms of radiation commonly in use are X-Rays, Gamma Rays and Electrons. Other charged particles like Protons and Heavy ions are also used in radiation therapy but rarely.
There are two primary modalities of radiation therapy – namely,
At PSG, we aim to deliver cutting edge high precision radiotherapy to the needy at affordable rates so that the gap in cancer care can be bridged.
We offer image based conformal radiation therapy where computer based treatment plans are generated and executed in such a way that side effects can be minimized and chances of cure maximized. Treatment is coupled with on couch imaging where in the exact relative position of the tumor and normal organs can be verified before treatment execution. The types of conformal radiotherapy offered at PSG are as follows
A highly precise form of radiation therapy, Stereotactic Radiation Therapy includes Stereotactic Radiosurgery(SRS) and Stereotactic Body Radiation Therapy(SBRT) which uses multiple radiation beamsto achieve very high dose gradients thereby targeting extremely small targets/ targets located at close proximity to critical structures. Treatment is delivered only after image verification of relative position of target and normal tissues
Stereotactic Radiosurgery(SRS) is generally offered on a single day for lesions in the brain. When multiple sittings of radiation therapy are deemed necessary, the same process is called Stereotactic Radiation Therapy(SRT). When a similar technique is used in rest of the body – including but not limited to lung, liver, pancreas, spine and prostate – the procedure is called Stereotactic Body Radiation Therapy(SBRT).
Targets at or close to the body surface can be treated with the help of electron beams. A relatively easy but highly effective technique, electrons beams are delivered using specialized collimators and are used to treat malignancies of the skin. They are also beneficial in adjuvant breast and chest wall irradiation
Surface guidance radiation is a relatively newer concept which helps in tracking any and all external movement of the patient while the radiation beam is on. An auto cutoff feature allows automatic beam cessation once the patient moves out of tolerance limits. This ensures that the beam is focused on the target at all times resulting in better clinical results
4 Dimensional Radiotherapy eliminates the effect of respiration on tumor motion. With respiratory gating radiation can be delivered at pre-determined specific phases of respiration thereby regularizing tumor position at every fraction of radiotherapy. This is specifically useful for tumors of the lung and upper abdomen (liver, pancreas) which are affected by respiration.
Adaptive radiation therapy is a technique by which radiation treatment can be tailored to the variations in tumor size and position during the course of radiation. This takes into account the shrinkage of tumor size during a radiation course as well as relative displacements in tumor position due to changes in the relative positions of nearby structures or changes in body contours due to weight loss.
Brachytherapy or internal radiation therapy involves the placement of radiation sources via specialized catheters inside or in close proximity to the tumor. Catheter placement may/may not be done under anesthesia depending on the location of the tumor and ease of procedure. A highly conformal treatment, it helps in dose escalation in areas which are otherwise technically difficult to target with EBRT Brachytherapy techniques are usually varied depending on the applicator used and location of the tumor
A state of the art modern clinical linear accelerator equipped with multiple beam energies and designed to deliver radiation dose to various clinical sites with submillimeter accuracy. The TruebeamTM also possesses advanced imaging capabilities including gated and triggered imaging allowing seamless 4 dimensional treatment delivery. The Flattening Filter Free(FFF) beam allows delivery of radiation doses in a matter of minutes further improving patient compliance and comfort. The linear accelerator is equipped with certain high end technology which improves radiation conformality
Flexitron is a 10 channel High Dose Rate Brachytherapy Afterloading platform. Oncentra planning software makes advanced brachytherapy planning easy and coupled with a full set of applicators, it helps in delivering brachytherapy to all accessible sites
The C-RAD Catalyst+ HD Optical tracking system is a complete solution for patient positioning, intra-fraction motion management and respiratory gating. Our hospital is the first to introduce the 3 camera optical tracking system in Tamil Nadu.
The C-RAD Sentinel 4DCT system is a laser based surface scanning system which helps in 4D reconstruction and gated imaging
The Somatom Confidence is a wide bore dual energy CT simulator with inbuilt noise and metal artifact reduction algorithms for optimal image reconstruction and radiation planning
A comprehensive software which takes care of all patient imaging needs during, before and after treatment. It helps in easy comparisons of past treatments done across different centers using different equipment and software.
Specialty | Radiation Oncology |
Experience | 10 Years |
Qualification | MBBS.,MD.,DNB |
Designation | Assistant Professor/ Consultant |
Specialty | Radiation Oncology |
Experience | 5 Years |
Qualification | MBBS, MD(RT) |
Designation | Assistant Professor/ Consultant |
Specialty | Radiation Oncology |
Experience | 6 Years |
Qualification | MD (PGI CHANDIGARH), DNB |
Designation | Consultant |
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