What is AlignRT®?

AlignRT® is an innovative technology which increases treatment accuracy and patient comfort during radiation therapy.

Quickly growing in use around the world, AlignRT® uses a 3D camera system to track your body surface in real time and may be used to help position you accurately before radiation therapy, and ensure you keep that position during treatment.  Using your external skin surface, the technology monitors your movement and knows exactly where you are at any moment to within a fraction of a millimeter. AlignRT® can be used from head to toe.


Why should I choose a center with AlignRT® for my radiation therapy treatment?

The American Society for Radiation Oncology (ASTRO) issued treatment guidelines for breast cancer patients in 2018. These guidelines state that, “Approaches that incorporate deep inspiration breath hold, target and organ-at-risk contouring and optimal patient positioning are recommended to minimize the radiation dose affecting nearby organs and normal tissue, including the heart, lungs and opposite breast.”1   (our emphasis)

AlignRT® has been shown to help deliver this “optimal patient positioning”, across many different cancer treatment sites, and is commonly used for “deep inspiration breath hold”. There are many scientific studies published in journals with an excellent reputation, describing the accuracy of this technique.

Vision RT systems are deployed in 80% of the top 50 US News “Best Hospitals for Cancer” and have been extensively studied with over 65 published clinical studies.

The benefits of choosing AlignRT®

There are many benefits to choosing AlignRT®, here are a few:

†Refer to the Product Guide for detailed product claims.

Radiation therapy for the whole breast: Executive summary of an American Society for Radiation Oncology (ASTRO) evidence-based guideline Smith, Benjamin D. et al. Practical Radiation Oncology, Volume 8, Issue 3, 145 – 152


Zagar et al. Prospective Assessment of Deep Inspiration Breath Hold to Prevent Radiation Associated Cardiac Perfusion Defects in Patients With Left-Sided Breast Cancer J Appl Clin Med Phys. ;93:3S 2027, plus recent personal communication.


Marks et al. The incidence and functional consequences of RT-associated cardiac perfusion defects. Int J Radiat Oncol Biol Phys. 2005 Sep 1;63(1):214-23.


Herron 2018 – Surface guided radiation therapy as a replacement for patient marks in treatment of breast cancer.


Pan et al. Frameless, real-time, surface imaging-guided radiosurgery: clinical outcomes for brain metastases. Neurosurgery. 2012 Oct;71(4):844-51


Pham et al. Frameless, real-time, surface imaging-guided radiosurgery: update on clinical outcomes for brain metastases. Trans. Cancer Res, 3, 4, 351-357, August, 2014


Heinzerling JH, et al. Use of 3d optical surface mapping for quantification of interfraction set up error and intrafraction motion during stereotactic body radiation therapy treatments of the lung and abdomen. International Journal of Radiation Oncology • Biology • Physics 2017;99 (2):E670.


Gierga et al. A Voluntary Breath-Hold Treatment Technique for the Left Breast With Unfavorable Cardiac Anatomy Using Surface Imaging. Int J Radiat Oncol Biol Phys. 2012 Dec 1;84(5):e663-8: