Enhancing patient safety and precision for treatments on Halcyon®, Ethos™ and (coming soon) Radixact® linear accelerators
Visibility Inside the Bore
Shadowing inside the bore during radiotherapy treatments can make accurate patient monitoring challenging, potentially impacting treatment precision¹.
AlignRT InBore combines the benefits of ceiling-mounted AlignRT cameras for patient setup with a dual camera system mounted on a ring within the bore. This helps maintain full visibility of the tracking region through setup, imaging and treatment.
Published data from UCSD demonstrates that using AlignRT for setup can reduce treatment times, reduce repeat imaging and improve patient position accuracy by reducing residual rotational errors².
Built-In Tools
The following tools come standard with the latest version of AlignRT InBore:
3D Photo Display
A clear, photorealistic image of your patient supports accurate identification and precise ROI placement.
AlignRT Reports
AlignRT Reports provides fast, customizable documentation for treatments, QA, and calibrations enhancing clinical confidence and compliance.
Deformation Tool
See even the smallest anatomical changes in real time. With intuitive color mapping, the Deformation Tool supports smarter decisions—helping you know when to adjust ROIs or to re-scan.
ROI Metrics
Get instant insight into ROI performance as you work. AlignRT helps you fine-tune ROI size and shape for optimal tracking and faster setups.
SSD Check
Instantly verify SSDs at a single gantry angle—without the need for manual room checks or other separate processes. Just one click, and you’re ready.
Send to Couch
Position patients faster & more accurately with one-click couch value transfers. Eliminates manual entry errors and enables one-step setups. * Available with compatible treatment systems and AlignRT configurations.
Smart Sign-On
Logging into AlignRT is now effortless and secure. Smart Sign-On (using Microsoft’s Active Directory) links to your clinic’s existing credentials to eliminate extra logins, while aligning with your cybersecurity policies. With Smart Sign-On, onboarding new users is fast, automatic, and secure.
Modules to extend your AlignRT InBore system
AlignRT InBore is a platform with optional modules and accessories available, that enable clinics to customize and extend their systems and workflows, based on their individual needs:
Postural Video
Gain clear positional guidance from multiple angles during setup and monitoring.
*Not available for Radixact®.
OIS Reports™ Module
Automatically capture and store AlignRT data in the OIS, streamlining record-keeping, approvals, auditing, and billing with fewer errors.
The Real Time Coach™
The Real Time Coach™ display gives patients clear feedback on their breathing to help deliver an effective breath-hold for accurate, reproducible therapy.
Auto ROI™ Module
Regions of Interest (ROIs) for the most common body sites defined automatically, speeding up patient preparation.
Head Adjusters
Transform a 3D couch into a 6DoF couch. Depending on your needs & couch configuration, choose from the TruPose™ or Vision RT versions.
Patient ID Module
The AlignRT Patient ID Module uses facial recognition to ensure the right patient gets the right treatment, every time.
Stereotactic Module
AlignRT’s stereotactic calibration module allows clinics to deliver the benefits of frameless, open-mask SRS and SBRT/SABR using SGRT.
Published clinical data shows:
5% faster setup time²
Accurate and reproducible DIBH³
High accuracy for setup and monitoring⁴
Hear from users on their clinical experiences:
“AlignRT InBore guided breath-hold provides reliable intra-fraction motion control with appropriate margins for whole breast and abdominal lymphoma patients.”
Xinran Zhong, PhD, DABR, University of Texas Southwestern
“Setup is a lot faster than what it used to be.”
Gail Anastasi, Principal Radiotherapy Physicist, Royal Surrey Cancer Centre
What our customers say
“We know patients can be really tense when you’re setting them up for treatment. Prior to SGRT we would chase shifts, and not take into account that patients relax and re-adjust after set-up. We couldn’t always measure if our patients moved a millimeter or a degree. Now, with AlignRT InBore monitoring the patients inside the bore, we know if they moved. That alone should make you want a system like this.”
Michelle Physic, RT(T) Director of Radiation Therapy, Dana-Farber Cancer Institute/Brigham Cancer Center
Frequently Asked Questions
Yes, through Varian’s Verification and Validation Process, AlignRT InBore is compatible with Halcyon versions 2.0, 3.0, 3.1, and 4.0 and Ethos versions 1.0 and 2.0.
AlignRT InBore for Radixact is currently in development, with commercial availability expected in summer 2026, depending on the territory and when the associated regulatory clearance is obtained. Vision RT is working with Accuracy to ensure the compatibility and connectivity of AlignRT InBore for Radixact.
Varian is currently developing an interface to connect motion management technology with Halcyon and Ethos Radiotherapy Systems. This architecture, similar to MMI on TrueBeam, is expected to be released soon. Once the interface specification is available, Vision RT will have access through Varian’s Interoperability program.
- Jadhav A, et al. Ensuring Clinical Readiness: Commissioning, Acceptance and Performance Testing of Closed Bore Linear Accelerator Compatible Surface Guided Radiotherapy System. J Med Phys. 2025 Jan-Mar;50(1):148-154.
- Kang S, et al. Evaluation of initial patient setup methods for breast cancer between surface-guided radiation therapy and laser alignment based on skin marking in the Halcyon system. Radiat Oncol. 2023 Apr 4;18(1):60.
- Lorchel F, et al. Reproducibility of Deep-Inspiration Breath Hold treatments on Halcyon™ performed using the first clinical version of AlignRT InBore™: Results of CYBORE study. Clin Transl Radiat Oncol. 2022 May 18;35:90-96.
- Oku Y, et al. Characteristics of detection accuracy of the patient setup using InBore optical patient positioning system. Radiol Phys Technol. 2023 Dec;16(4):532-542.
Radixact® is a registered trademark of Accuray. Halcyon® & Ethos™ are registered trademarks of Siemens Healthineers. The use of Halcyon® & Ethos™ herein is for identification purposes only. Use of these marks does not indicate sponsorship, affiliation, endorsement, or approval by Siemens.
*AlignRT InBore for Radixact is not cleared for clinical use in the United States.
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Vision RT’s family of SGRT solutions guide radiation therapy for better patient care at every step: Sim, Planning, Treatment and Dose. Whether you’re looking for a quote, a product demo (virtual or in-person) or just more information, please get in touch.