Radiation therapy uses radioactive substances, X-rays or other targeted energy to reduce tumors, alleviate symptoms of advanced cancer and/or destroy cancer cells. Radiation therapy can be used as a primary treatment or in combination with other treatments. Some of the best cancer hospitals in Singapore use advanced technologies to provide radiation therapy. Radiation Therapists in Singapore mostly use Systemic Radiation Therapy, Internal Radiation Therapy, and External Beam Radiation Therapy.
In this article, we have listed some of the most used radiation therapy in Singapore for cancer treatment.
1. Stereotactic Radiosurgery (SRS)
In this radiotherapy, high dose radiation beams are delivered to a localized, small area of the body using a linear accelerator. This painless treatment is used to destroy a lesion. The beam is delivered from various different angles to deliver the precise amount of radiation.
2. Stereotactic Body Radiation Therapy (SBRT)
A high dose radiation is delivered to the target area within the body, in a single or up to 5 treatment sessions. It deals with tumors outside the CNS (Central Nervous System). A specially designed coordinate system is used to detect small targets. This therapy is an alternative for those patients who cannot undergo surgeries due to medical comorbidities.
3. Intensity Modulated Radiation Therapy (IMRT)
In this therapy, multileaf collimators (MLCs) are used to deliver varying radiation beam intensity across the targeted field. In order to minimize the effect on adjacent normal organs and tissues, radiations are delivered with precise accuracy. This therapy has minimum side effects and patients can get back to their normal activities sooner.
4. Image Guided Radiation Therapy (IGRT)
IGRT uses imaging technology to let doctors image the tumor before and during treatment. On the basis of these images, the radiation beams can be adjusted to target the tumor more precisely. This therapy is used to treat tumors in movable body parts such as liver and lungs.
5. Brachytherapy (Internal Radiation Therapy)
This therapy is used to treat skin, breast, prostate, vagina, uterus, and cervix cancers. Radiations are delivered close to the tumor with the help of applicators. Depending on the clinical scenario, Brachytherapy can be used with other treatments (such as chemotherapy, EBRT, etc.) or alone.
6. 3D Conformal Radiation Therapy
In this radiation therapy, 3-dimensional scans are used to determine the accurate size and shape of the tumor. In order to prevent the adjacent healthy tissues from the exposure to radiations, 3D Conformal Radiation Therapy uses MRI scans, CT planning images or other scans.
The best cancer hospitals provide all these therapies for cancer treatment in Singapore. Consult the doctor as soon as you identify the symptoms of cancer so that it can be treated at the initial level.