The Trilogy™ System

The Trilogy Image-Guided Treatment Center uses a powerful linear accelerator – Varian’s 23EX Clinac – to deliver radiotherapy doses at least 60 percent faster than conventional accelerators. This shortens the length of time patients need to spend undergoing treatment. In addition, the Trilogy equipment rotates 360 degrees around the patient to deliver radiotherapy treatments from many angles, allowing clinicians to deliver treatments with unprecedented accuracy.

The Trilogy System combines imaging and treatment technologies, and can be used to deliver the widest range of external beam radiotherapies: 3D conformal radiotherapy, IMRT, stereotactic radiosurgery, fractionated stereotactic radiation therapy and intensity-modulated radiosurgery for cancer and neurosurgical treatments.

Stanley Benedict, Ph.D., chief of clinical physics, explains, “While many technologies offer three-dimensional image guidance, our combined system offers a fourth dimension – it accounts for a patient’s breathing in real time – so we can target the radiation beam to a fraction of a millimeter,”

By incorporating sophisticated technologies for shaping the radiation beam, the Trilogy System targets the radiation dose precisely on the region of abnormality. By changing the beam shape over time while delivering the radiation, doctors achieve very fine control over how and where the radiation is administered.

The Trilogy Center team has enhanced our system with additional technologies for positioning patients accurately including:

  • A special X-ray imager to check the patient's position prior to treatment and monitor the position of the targeted area during treatment.
  • An optical guidance system with infrared cameras that continuously monitor the patient's position to provide therapists with real time feedback about any changes in a patient's position.

At the VCU Medical Center, we are the first facility in the world to combine the Trilogy System with the ExacTrac® respiratory gating technology that coordinates treatment with movements caused by the patient's breathing.

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VCU Medical Center
The Trilogy Image-Guided Treatment Center

Phone: (804) 828-7232
Fax: (804) 828-6042