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Radiation Therapy in San Angelo

For patients facing a cancer diagnosis, having board certified physicians, highly trained teammates and compassionate care within your community can be comforting. Locally, Shannon provides a broad spectrum of cancer treatment options to patients. Dr. James Studt, MD, Shannon Clinic radiation oncologist, serves as medical director of radiation therapy and ensures safe, high quality radiation therapy is available for the Concho Valley and beyond.

What Is Radiation Oncology?

Radiation oncology is a form of cancer treatment that uses with high-energy x-rays (radiation). Roughly half of the patients diagnosed with cancer receive some form of radiation therapy, which is a form of localized treatment and can be used as a standalone treatment or in conjunction with other modalities such as chemotherapy and surgery.

Various treatments are offered to target specific types of cancer, including:

  • Breast
  • Lung
  • Head
  • Neck
  • Gynecologic
  • Skin
  • Lymphomas
  • Prostate
  • Colorectal
  • Metastatic Diseases

Treatment options include:

3D CRT (Three-Dimensional Conformal Radiation Therapy}

Three-dimensional conformal radiation therapy is a valuable asset at Shannon. A treatment planning CT scan is performed in the treatment position and, using the treatment planning computer, the radiation therapy fields are designed by our highly skilled treatment planning team. This accurate form of cancer treatment allows the radiation oncologist to deliver therapeutic doses of radiation to tumors, achieving desired treatment goals outlined in consultation.

IMRT (Image Modulated Radiation Therapy) and IGRT (Image Guided Radiation Therapy)

For select cases, IMRT allows higher doses of radiation to be delivered directly to tumors and cancer cells while protecting healthy adjacent organs and tissues. IMRT with IGRT can often maximize the therapeutic dose to tumors by taking advantage of on-board image guidance to ensure the highest level of precision available every treatment. IGRT gives the ability to track the tumor during treatment even if it shifts as a result of breathing or movement of the bladder and bowels. By sparing healthy tissue using image guidance, treatment toxicities and side effects can be minimized.

SBRT (Stereotactic Body Radiation Therapy)

SBRT is a treatment procedure similar to stereotactic radiosurgery, except often delivered over 2 to 5 treatment sessions versus a single fraction. It targets the exact location of the tumor using low dose on-board CT scans and image guidance to line up the target and delivers high-dose radiation treatment utilizing millimeter scale precision. SBRT is not available for all cancers, and you should speak with your physician to determine if you would benefit from SBRT or standard radiation therapy techniques.

SRS (Stereotactic Radiosurgery)

SRS is radiation treatment of a central nervous system tumor that is applied in a single session with a high dose of radiation. Cranial SBRT is similar to SRS, but it is applied in up to five treatments. These methods allow delivery of a high dose of radiation to the tumor or tumors with a significantly lower dose to surrounding brain tissue. This results in the ability to control the disease with reduced side effects. SRS and Cranial SBRT can be used to treat malignant or benign tumors as well as other conditions such as trigeminal neuralgia.


HyperArc treatments allow the ability to deliver more compact radiation doses that closely conform to the size, shape, and location of tumors while sparing more surrounding healthy tissue. These advanced treatments can be delivered in the same amount of time as other types of treatments. HyperArc is designed to make it possible to easily target and eradicate isolated brain metastases and eliminate with whole brain radiation.

HyperArc technology can target multiple tumors at the same time without repositioning the patient. As a result, more metastatic brain cancer patients are now eligible for treatment than before. Frameless radiosurgery offers you a more comfortable and non-invasive alternative to other radiosurgery systems which require immobilization with a head ring that attaches to the skull.

Highly Trained Support Staff

The technology available at the center is unique and advanced for its size. The center's highly trained support staff, including a chief therapist, medical physicist, and dosimetrists, work together to determine the treatment plan for each patient. Another unique service patients receive is physician-provided care with one-on-one consults. Each patient is followed by Dr. Studt throughout the entirety of their treatment.

"It's important to offer these radiation therapy services locally because patients are able to stay in the comfort of their home with their family and receive the same quality of care," Dr. Studt said. "For example, we have all the technology available locally for the external treatment of breast cancer. It is not necessary for the majority of patients to leave town to receive radiation treatment."

Shannon Oncology Center is the only radiation therapy center in West Texas accredited by the American College of Radiology.

For more information, please call 325.747.2025 or complete our online form.

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