SGRT and patient monitoring comparison
Brainlab ExacTrac Dynamic alternative: VisionRT AlignRT
ExacTrac Dynamic combines surface monitoring with x-ray verification for radiosurgery and stereotactic workflows. If your main decision is surface guided radiotherapy, AlignRT is the dedicated VisionRT SGRT route to evaluate.
What ExacTrac Dynamic is designed to solve
Surface plus thermal tracking
Brainlab describes ExacTrac Dynamic as monitoring patient position with continuous thermal-surface tracking, including an ExacTrac Dynamic Surface option for SGRT workflows.
X-ray verification
The complete Dynamic configuration can include x-ray imaging to check internal anatomy or implanted marker workflows during treatment.
SRS and SBRT
The system is positioned around high-precision radiosurgery and stereotactic body radiotherapy, where internal target verification can matter.
Integrated room workflow
It is a broader positioning and monitoring route, especially when the department wants surface monitoring and x-ray verification in one Brainlab workflow.
The AlignRT route
AlignRT is a dedicated surface guided radiation therapy platform from VisionRT. It uses optical 3D camera units to reconstruct the patient surface in real time for setup and intrafraction monitoring, without adding imaging dose for the surface-monitoring step.
- Optical SGRT for setup, DIBH and intrafraction motion monitoring.
- 6DoF surface monitoring and beam-hold workflows when configured clinically.
- Open-mask frameless cranial SRS with the appropriate stereotactic module.
- Strong fit where the clinical requirement is SGRT rather than x-ray tracking.
- Vendor-neutral planning for services that want SGRT independent of one accelerator ecosystem.
Side-by-side decision table
| Decision point | VisionRT AlignRT | Brainlab ExacTrac Dynamic |
|---|---|---|
| Main role | Dedicated SGRT platform for surface-guided setup and intrafraction monitoring. | Patient positioning and monitoring platform combining surface/thermal tracking with x-ray verification options. |
| Surface technology | Optical 3D surface tracking with VisionRT camera units. | Optical and thermal surface tracking, described by Brainlab as continuous thermal-surface monitoring. |
| Internal anatomy check | Not the primary function; AlignRT focuses on surface guidance without imaging dose. | X-ray imaging can be part of the Dynamic route for internal anatomy or marker-based verification. |
| DIBH and breast workflows | Established SGRT workflows for DIBH and tattoo-free breast setup. | Surface workflows can support breath-hold use cases depending on configuration. |
| SRS / SBRT | Open-mask frameless cranial SRS and SBRT surface monitoring with the relevant modules and clinical protocol. | Strongly positioned for SRS, SBRT and marker workflows, especially when x-ray verification is required. |
| Dose profile for monitoring | Surface monitoring is optical and does not add x-ray imaging dose. | Surface monitoring is optical/thermal; x-ray verification adds imaging according to protocol. |
| Best fit | Departments where SGRT, DIBH, tattoo-free setup and vendor-neutral surface monitoring are the central requirement. | Departments that specifically want Brainlab surface plus x-ray positioning in a stereotactic workflow. |
This comparison is deliberately conservative. Confirm current manufacturer datasheets, linac interfaces and site configuration before procurement.
When AlignRT is the stronger discussion
SGRT is the main requirement
If the project is about surface-guided setup, DIBH and real-time motion monitoring, AlignRT keeps the decision centred on SGRT.
No extra imaging dose for monitoring
Surface monitoring is optical, so routine surface tracking does not require additional x-ray images.
Mixed linac planning
AlignRT is a cleaner route when the department wants SGRT that is not tied to one vendor’s room workflow.
Patient experience
Tattoo-free setup, DIBH support and open-mask SRS workflows can improve the clinical and patient pathway.
Related SGRT pages: SGRT with AlignRT · C-RAD vs AlignRT · Varian Identify vs AlignRT
Need to compare ExacTrac Dynamic with AlignRT?
Send us the linac model, clinical sites, DIBH/SRS requirements and whether x-ray tracking is mandatory. Interphysix can help validate whether AlignRT is the right SGRT route.
Product and brand names belong to their respective owners. This page is an informational technical comparison and does not imply endorsement or partnership with competitor brands. Specifications are based on public manufacturer information and existing Interphysix content, and should be confirmed against current official datasheets before purchase.
Última actualização: 30/06/2026