Philips unveils latest CT and MR innovations in radiation therapy, advancing precision cancer care at ASTRO 2025

CT imaging is the foundation of precision in radiation therapy planning, delivering accuracy to guide treatment. But as oncology teams face mounting demands for precision, efficiency, and consistency amid staffing and resource pressures, a new era of CT simulation is rising to meet the challenge.

Philips’ new Rembra RT and Areta RT systems are designed to make cancer treatment planning faster and more accurate.  These advanced scanners produce clearer, more consistent images so doctors can see tumors in greater detail and plan treatments with confidence. They also save valuable time with ultra-fast image reconstruction speeds up to 106 images per second, and easy-to-use touchscreen gantry controls that help 91% of care teams work more efficiently [3]. A wide 85 cm extended field of view and next-generation 4DCT imaging capabilities can capture a full respiratory cycle in one scan up to 500 scan seconds with breath rates of 4-40 breaths per minute.

“Philips invented CT Simulation and introduced the industry’s first Big Bore RT system,” said Dan Xu, Business Leader of CT at Philips. “With Rembra RT and Areta RT, we’re once again setting new standards in radiation therapy, empowering care teams with the precision, dependability, and speed they need to deliver the best outcomes for patients.”

Philips is also currently working with MVision AI to explore opportunities to include MVision AI’s Contour+ AI-powered auto-segmentation software with Philips CT simulators, including the new Rembra RT and Areta RT systems.  Contour+ delivers fast and precise automatic delineation of organs at risk and lymph node areas.

Alongside its newest CT innovations, Philips is introducing BlueSeal MR RT in North America [5], the company’s latest helium-free [2] 1.5T 70cm MR system designed for radiation oncology. Powered by AI-based SmartSpeed Precise acceleration software, BlueSeal RT enables enhanced simulation confidence.

MR plays an increasingly vital role in radiation therapy, enabling clinicians to visualize tumors and surrounding healthy tissue with far greater detail, which is essential for planning precise treatments. By combining sustainability with advanced imaging, BlueSeal RT transforms therapy planning with enhanced simulation confidence, reducing registration errors to help protect healthy organs. In addition, MR-only imaging with MRCAT simplifies workflows. With full MR-only simulation protocols in as little as 10 minutes, patients also benefit, experiencing shorter scans that improve comfort and overall experience, especially for those wearing a mask.

With approximately 2,000 helium-free [2] MR scanners installed worldwide, Philips is driving the shift to sustainable MR. BlueSeal RT extends this leadership into radiotherapy by addressing a key challenge for oncology departments: installing MR systems in complex clinical environments such as Radiation Oncology departments. Its light-weight, vent-pipe-free design opens new siting possibilities - whether in basements, bunkers, or higher floors - while also lowering cost and energy use through helium-free [2] operation and PowerSave+ efficiency.

“BlueSeal RT is leading the way in MR for radiotherapy,” said Ioannis Panagiotelis, PhD, Business Leader MR at Philips. “By combining helium-free [2] sustainability with AI-powered acceleration, we’re enabling radiation oncology teams to plan and simulate with greater speed, accuracy, and confidence—while enhancing the patient experience.”

“Radiation oncology teams need transformative innovation to meet today’s accuracy, workflow, and cost challenges,” said Christopher M. Freese, MD, The Christ Hospital. “With Rembra RT, Areta RT, and BlueSeal RT, Philips is setting new standards for precision and efficiency in radiation therapy across CT and MR.”