- Kira-Lee Oliver, Senior Director of Operations, Genesis Care Florida: “Efficiency, Standardisation and Clinical Excellence: One Goal Across a Large Network” SGRT US Meeting 2022.
- Daniel Holt, Principal Operations Radiographer and Centre Manager, The Christie at Macclesfield Radiotherapy: “Departmental Comparison of AlignRT and Postural Video Versus AlignRT Alone”. SGRT Europe Meeting 2025.
- Batin E, et al. Can surface imaging improve the patient setup for proton postmastectomy chest wall irradiation? Pract Radiat Oncol. 2016 Nov-Dec;6(6):e235-e241.
- Wang X, et al. A novel approach to Verify air gap and SSD for proton radiotherapy using surface imaging. Radiat Oncol. 2019 Dec 11;14(1):224.
- Batin E, et al. Reducing X-ray imaging for proton postmastectomy chest wall patients. Pract Radiat Oncol. 2018 Sep-Oct;8(5):e266-e274.
- MacFarlane MJ, et al. Comparison of the dosimetric accuracy of proton breast treatment plans delivered with SGRT and CBCT setups. J Appl Clin Med Phys. 2021 Sep;22(9):153-158.
- Hamming V, et al. Surface imaging to evaluate the dosimetric impact of breast deformations in proton and photon therapy for breast cancer. Phys Med Biol. 2025 Oct 9;70(20).
- Qubala A, et al. Optimizing the Patient Positioning Workflow of Patients with Pelvis, Limb, and Chest/Spine Tumors at an Ion-Beam Gantry based on Optical Surface Guidance. Adv Radiat Oncol. 2022 Dec 5;8(2):101105.
Experience Unmatched Precision and Efficiency in Proton Therapy with SGRT
Proton therapy’s strength is its ability to deliver radiation directly to tumors near critical organs, sparing surrounding healthy tissue. This precision demands extremely accurate patient positioning – even more so than with photon therapy – as minor misalignments can impact treatment effectiveness.
Motion management with AlignRT enhances proton therapy by offering patient setup and tracking accuracy within 0.5mm, ensuring optimal alignment throughout the treatment process. With AlignRT, you can enhance both patient setups and intra-fraction monitoring to enhance treatment accuracy and efficiency.
AlignRT utilizes a rigid registration paired with a selective Region of Interest (ROI) to focus on clinically relevant anatomy and improve visualization during beam delivery.
Postural Video enhances standard SGRT with a multi-angle view of overall alignment, enabling faster setup, delivering 25¹ – 155² seconds less setup time per fraction vs. standard SGRT and helps reduce repeat imaging by 63%¹.
AlignRT is operational with proton systems manufactured by Hitachi*, IBA*, Varian, and Mevion.
*Gating interface is currently available on selected models.
More than 50 clinics globally are already using AlignRT for proton.
Built-In Tools
The following tools come standard with the latest version of AlignRT*:
3D Photo Display
A clear, photorealistic image of your patient supports accurate identification and precise ROI placement.
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.
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.
AlignRT Reports
AlignRT Reports provides fast, customizable documentation for treatments, QA, and calibrations enhancing clinical confidence and compliance.
MapRT for Proton Therapy
MapRT brings its proven surface-guided planning capabilities to proton therapy, ensuring physical deliverability is verified virtually, even in complex non-coplanar cases.
- Optimize beam or arc selection to improve plan quality and deliverability
- Automatically identify the smallest safe air gap to improve OAR sparing and dose accuracy
- Eliminate the need for dry runs and ensure collision-free plans with automated virtual clearance checks
- Access proton data directly from TPS scripts using the MapRT API*
*A browser-based interface is planned for launch in May 2026.
Modules to extend your AlignRT system
AlignRT 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:
Gain real-time positional guidance from multiple angles during setup and monitoring.
Regions of Interest (ROIs) for the most common body sites defined automatically, speeding up patient preparation.
Automatically capture and store AlignRT data in the OIS, streamlining record-keeping, approvals, auditing, and billing with fewer errors.
The Real Time Coach™ display gives patients clear feedback on their breathing to help deliver an effective breath-hold for accurate, reproducible therapy.
The AlignRT Patient ID Module uses facial recognition to ensure the right patient gets the right treatment, every time.
Clinical Evidence on Proton Treatments with SGRT:
Published data shows the use of AlignRT with Proton Therapy for various treatment indications, including pelvis, limb, chest and spine, and demonstrated:
| “The use of surface imaging allows postmastectomy chest wall patients to be positioned more accurately and substantially more efficiently than radiograph only-based techniques³.” |  |
Research on the feasibility and reliability of optical surface imaging in proton therapy has shown its ability to accurately measure air gaps and SSD, providing an efficient method to verify target depth during treatment⁴.
Research found that combining initial and weekly X-ray acquisition with daily surface imaging is effective for routine PMRT positioning and monitoring changes in the treatment area⁵.
| A study comparing the dosimetric accuracy of proton breast treatment plans using SGRT and CBCT setups supports the daily use of SGRT to ensure precise dose delivery in proton breast therapy⁶. | A recent study evaluating surface imaging in proton breast treatments found “breast surface deformations could accurately be determined from daily SGRT images, making them suitable for identifying patients that require plan adaptations.7” |
Evidence from Qubala et al shows that SGRT significantly reduces setup time, and reimaging frequency, and enhances workflow efficiency. Additionally, optimized ROI design further improves positioning reliability with SGRT8.
Hear from users on their clinical experience:
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