TrueBeam & Trilogy: New Generation Cancer Care

The TrueBeam and Trilogy Stereotactic Systems from Varian Medical Systems are the most advanced, sophisticated machines of its type in the world.  As the leading image-guided radiotherapy (IGRT) system, the TrueBeam and Trilogy mark the beginning of a new generation of cancer care.  Space Coast Cancer Center is the first to offer RapidArc technology in Central Florida.  This provides patients the most safe and effective, state-of-the -art cancer therapy.

GE Imaging machine

These versatile systems can be used to deliver the widest range of external beam radiotherapy: 3D conformal radiotherapy, IMRT, stereotactic radiosurgery, fractionated stereotactic radiation therapy and intensitymodulated radiosurgery for cancer and neurosurgical treatments.

The Benefits for You the Patient:

  • More effective at treating the cancer tumor
  • Most precise delivery of radiation therapy
  • Reduces side effects from the treatment
  • Drastically reduced treatment times
  • Accuracy and effectiveness reduces surrounding tissue damage
  • State-of-the-art motion management techniques reduces stress
  • Treatment can be used on various types cancer without invasive techniques

Description and Overview

Advanced imaging capabilities built into the system allow therapists to position patients for treatment with sub-millimeter accuracy, making sure the tumor is lined up precisely with the radiation beam before the treatment is started. A respiratory gating system takes into account the tumor movement that can occur as a patient breathes, turning the beam off and on, so that treatment is delivered only when the tumor is stationary.

How it Works

At the core of the TrueBeam and Trilogy systems is Varian’s Linac, the linear accelerator that has been enhanced for stereotactic applications that involve delivering higher doses of radiation to smaller areas over a shorter period of time. These system’s feature an ultra-precise multi-leaf collimator (MLC), and the tightest isocenter, or beam focal point, currently available.


Prior to treatment, images of a patient’s tumor and the surrounding anatomy are generated (using MRI, CT or PET scanning), and clinicians use this information, along with sophisticated analytical software programs, to prepare a detailed treatment plan. The treatment plan specifies the exact dose to be delivered to the tumor, as well as how the technology can best deliver that dose, given the three-dimensional geometry of the target and surrounding tissues. When the patient arrives for treatment, clinicians use the TrueBeam and Trilogy’s advanced imaging system to confirm the exact tumor position relative the radiation beam, and make any needed adjustments before treatment begins. Some treatments, primarily for small lesions and metastases, can be accomplished in a single session, while other treatments require multiple sessions.

Patient Benefits

Through more precise targeting of the beam, radiotherapy may become more effective at treating disease while simultaneously reducing side effects of the treatment. Due to the increased accuracy and power, smaller lesions can be treated more easily and effectively. State-of-the-art motion management techniques allow doctors to coordinate treatment with a patient’s breathing patterns.  During these treatments, patients can continue to breathe naturally, reducing stress and increasing comfort. Radiotherapy can be used to treat more different types of cancer, which means that more patients can be spared surgery and/or chemotherapy.