Adaptive Radiation Therapy with Ethos®

At OHC, in collaboration with The Urology Group, we’re redefining prostate cancer treatment with adaptive radiation therapy using Ethos®, one of the most advanced radiation systems available today. Ethos delivers highly precise radiation in as few as five treatments, while intelligently adapting each session to your body in real time.

The result is a faster, more personalized treatment experience.

What Makes Ethos Different?

Like CyberKnife®, Ethos can treat prostate cancer in just five sessions. But Ethos takes precision a step further by adapting treatment while you’re on the treatment table.

The prostate position can change daily due to normal bladder or bowel filling. Traditional radiation plans are created weeks in advance and may not reflect these daily changes. Ethos solves this problem.

Ethos is also capable of treating with conventional radiation, broadening our ability to treat cancer in the most effective way possible.

Adaptive Radiation Therapy Explained

Before each treatment, Ethos:

  • Takes high‑quality imaging of the prostate and nearby organs
  • Evaluates whether the original radiation plan still fits your anatomy
  • Automatically recalculates and optimizes the plan if changes are detected
  • Delivers treatment immediately after physician approval

All of this happens during the same visit, without delays or rescheduling.

Ethos vs. CyberKnife®

CyberKnife is a proven and effective technology, but Ethos offers key advantages:

✔ Real‑Time Treatment Adaptation

In most cases, Ethos can re‑optimize the entire radiation plan on the spot if the prostate, bladder, or bowel aren’t aligned as expected. With older technologies, this process could take hours or require another appointment.

✔ Greater Daily Precision

Instead of relying on a single planning CT scan from weeks earlier, Ethos creates a treatment plan that reflects your anatomy that day, every day.

✔ More Efficient Appointments

With Ethos, imaging, adaptation, and treatment happen in one streamlined visit, saving time and reducing stress for patients.

Why Adaptive Therapy Matters for Prostate Cancer

The prostate sits close to organs that affect urinary, bowel, and sexual function. Even small changes in anatomy can impact treatment accuracy.

Adaptive radiation therapy helps:

  • Maintain tight targeting of the prostate
  • Reduce radiation exposure to the bladder and rectum
  • Improve consistency across all five treatments for better outcomes

This personalized approach supports both treatment effectiveness and quality of life.

Fewer Treatments. Less Disruption.

Ethos is designed to fit into your life, not disrupt it.

  • Only five treatment sessions
  • No surgery
  • No hospital stays
  • Minimal interruption to work and daily activities

Each visit is efficient, with no need to wait hours for plan adjustments or return on another day.

Is Ethos Right for You?

Ethos adaptive radiation therapy may be an excellent option for patients with:

  • Localized prostate cancer
  • Low‑ or intermediate‑risk disease
  • Select higher‑risk cases, based on physician evaluation

Your OHC care team will review your diagnosis and help determine the most appropriate treatment option for you.

Take the Next Step

If you’ve been diagnosed with prostate cancer, you deserve the most advanced and efficient treatment available.

Schedule a consultation with one of our radiation oncologists today to learn whether Ethos adaptive radiation therapy is right for you.