Varian Receives FDA 510(k) Clearance for Halcyon and Ethos Radiotherapy Systems Featuring HyperSight Imaging Solution and Announces First Patient Treatment


Achieves CE Mark for Halcyon and Ethos Radiotherapy Systems Featuring HyperSight

PALO ALTO, Calif., Feb. 2, 2023 /PRNewswire/ -- Varian Medical a Siemens Healthineers company, announced today that it has received 510(k) clearance from the U.S. Food and Drug Administration (FDA), as well as CE mark, for Halcyon® and Ethos™ radiotherapy systems featuring Varian's HyperSight™ imaging solution. On February 1, a cancer patient at Penn Medicine became the first person in the world to be treated on a Halcyon system equipped with HyperSight.

HyperSight enables clinicians to capture high-quality images of patients during their daily radiation treatments. These images are used for daily localization of patient tumors, and HyperSight now enables them to be used for replanning and adaptation to patient and tumor changes. HyperSight's cone-beam computed tomography (CBCT) technology delivers larger images with better contrast, and is 10 times faster than conventional linear accelerator-based imaging systems, saving time for patients and creating the potential to significantly enhance the patient experience.

Traditional CBCT imaging can take up to 60 seconds and may require patients with tumors that move with breathing — including lung, liver, and left breast tumors — to hold their breath several times to acquire a full, clear image. HyperSight can acquire images in six seconds, potentially minimizing patient discomfort and anxiety and contributing to clearer images due to reduction of motion related image blurring.

The quantitative information about patient anatomy (Hounsfield Units) contained within HyperSight images allows, for the first time, for radiation dose distributions to be calculated directly on CBCT images. This calculation previously required a patient to make an additional trip to a separate CT scanner used for treatment simulation and planning. With HyperSight, this calculation can be performed directly on the linac-based CBCT image during the normal course of treatment. As a result, this technology may help adapt treatment to adjust to anatomical changes to the tumor and surrounding organs, which can change from day to day during treatment.

"Varian has long been focused on pioneering innovations that can enhance the radiotherapy experience and outcomes for both patients and cancer care teams. Becoming a Siemens Healthineers company has given us an opportunity to sharpen and accelerate these efforts, with a focus on connecting the power of imaging inside and outside the treatment room," said Kevin O'Reilly, President of Radiation Oncology Solutions at Varian. "HyperSight reflects the power of our expanded view of the patient journey and robust imaging technology. We look forward to working with our clinical partners and the broader radiotherapy community to drive adoption and further advancement of this technology, as we continue our work to transform the patient pathway and deliver on our mission to create a world without fear of cancer."

As a longtime collaborator and the first cancer center in the world to adopt Varian's Halcyon system, Penn Medicine has played a key role in supporting the advancement of radiation therapy innovations, including HyperSight.

"Bringing this technology to patients is another step forward in our work to help develop and assess cutting-edge treatment technologies that improve care for cancer patients," said James Metz, MD, chair of Radiation Oncology and leader of the Roberts Proton Therapy Center at Penn.

Editor's note: Dr. Metz has served on the Varian advisory board.

About Varian
At Varian, a Siemens Healthineers company, we envision a world without fear of cancer. For more than 70 years, we have developed, built and delivered innovative cancer care technologies and solutions for our clinical partners around the globe to help them treat millions of patients each year. With an Intelligent Cancer Care approach, we are harnessing advanced technologies like artificial intelligence, machine learning and data analytics to enhance cancer treatment and expand access to care. Our 11,000 employees across 70 locations keep the patient and our clinical partners at the center of our thinking as we power new victories in cancer care. Because, for cancer patients everywhere, their fight is our fight. For more information, visit and follow @VarianMedSys on Twitter.

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Katie Villany
Varian Corporate Communications

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