Jefferson University Hospitals

Volumetric Modulated Arc Therapy (VMAT)

Jefferson radiation oncologists treat cancer using a state-of-the-art VMAT technology based on the most accurate dose calculation algorithm that dramatically shortens treatment delivery time. VMAT (volumetric modulated arc therapy) is a new generation arc therapy technique that establishes new standards for treatment speed and dose conformity.

What Does VMAT Involve?

Using Elekta's VMAT, our radiation oncologists can deploy single or multiple radiation beams sweeping in uninterrupted arc(s) around the patient, thus shortening treatment from the conventional 8 to 12 minutes to as few as 2 minutes.

Radiation dose planning is performed using Monaco, a Monte Carlo treatment planning system featuring biological modeling, constrained optimization and sensitivity analysis. Monte Carlo algorithm is widely considered the most accurate dose calculation and is often used as a gold standard for evaluating other dose calculation algorithms.

Why Choose Jefferson for Radiation Therapy in Philadelphia?

With the combination of VMAT and Monte Carlo, our patients receive fast daily treatments that maximize dose to cancer and minimize exposure to surrounding healthy tissues.

Three-dimensional volume imaging technology integrated into the treatment planning system increases the precision of VMAT. This enables our radiation oncologists to visualize the tumor target at the time of treatment and to guide the radiation just prior to delivering the beam.