Linear Accelerator Radiation Therapy
Linear Accelerator (LINAC) Radiation Therapy
Radiation therapy plays an important role in treating many types of cancer. A linear accelerator, also known as a LINAC, is an advanced medical device used to deliver targeted radiation to cancer cells while helping protect nearby healthy tissues.
At Saint Vincent Hospital, radiation treatments are delivered using modern linear accelerator technology that supports both routine radiotherapy and radiosurgery, based on each patient’s individualized care plan.
-radiation-therapy-machine.jpg?sfvrsn=1031e675_3)
What Is a Linear Accelerator?
A linear accelerator uses high-energy radiation to treat cancer. The treatment is delivered from outside the body and is usually painless. What makes this technology different is its ability to precisely shape and direct radiation to the tumor while helping protect nearby healthy tissues.
Linear accelerator technology is designed to support effective treatment while prioritizing patient safety and comfort. Benefits may include:
- Targeted radiation tailored to each patient
- Advanced imaging to support precise delivery
- Fewer treatment sessions for select cases
- Noninvasive care with little to no downtime between visits
Precision Guided by Imaging
Modern linear accelerators use image-guided radiation therapy (IGRT). Imaging is taken just before treatment to confirm the tumor’s position and account for normal changes, such as breathing or daily movement.
Saint Vincent uses a linear accelerator platform with advanced imaging capabilities, including the TrueBeam radiotherapy system with optional HyperSight imaging solution, which aims to enhance image quality and supports accurate treatment setup for both routine radiation therapy and radiosurgery.
Treatment Options Supported by a LINAC
Depending on your diagnosis, a linear accelerator may be used to deliver:
- External Beam Radiation Therapy (EBRT): Standard radiation treatments given over multiple sessions.
- Intensity-Modulated Radiation Therapy (IMRT): Allows the radiation dose to be carefully shaped around the tumor.
- Image-Guided Radiation Therapy (IGRT): Uses imaging to help improve accuracy at each visit.
- Stereotactic Body Radiation Therapy (SBRT): Highly focused radiation, often delivered in fewer sessions for select tumors.
- Radiosurgery: A non-surgical treatment that delivers precise radiation in one or a few sessions.
Your care team will determine which approach is right for you.
What to Expect During Treatment
Radiation therapy is typically done on an outpatient basis. You may expect that:
- Appointments may last less than an hour
- The radiation itself may take only a short time
- Treatments are generally painless
- Most patients may return to normal activities afterward
- Your team will be with you throughout treatment, answering questions and monitoring your care
Part of Comprehensive Cancer Care
The linear accelerator is one part of Saint Vincent’s Radiation Oncology services. Care is provided by a dedicated team of specialists who work together to support you at every step of treatment.