STOCKHOLM, May 3, 2025 /PRNewswire/ -- At this week's ESTRO conference in Vienna, RaySearch Laboratories AB (publ) and Vision RT proudly announces the next step in their collaboration: the full integration of MapRT with RayStation®* treatment planning system. This integration enables full access to the MapRT clearance map in RayStation to guide the user during treatment planning in choosing beam trajectories clear from collisions between the treatment unit, patient and couch.

During CT simulation, MapRT cameras capture the entire surface of the patient, along with any immobilization accessories. The MapRT software then analyzes this data, alongside models of the treatment couch and machine, to identify safe gantry and couch angles which are represented by a clearance map that is immediately accessible in RayStation.

The integration is designed to optimize beam options for better plans and minimize the need for dry runs. This is particularly important for treatment plans where the couch is rotated. Recent studies have demonstrated that non-coplanar treatments can significantly improve treatment plans for several cancers, including lung^1,2,3,4, breast^5,6,7,8, head and neck cancers^{9,10,11,12,13}, lymphoma^14,15, and high-grade glioma¹⁶. These treatments can offer clinically relevant benefits, such as improved organ-at-risk dose sparing.

Helen Convery, Senior Dosimetrist (Development & Clinical Trials), who has tested the integration, says: "We have used MapRT at Raigmore Hospital since 2022 and have found it invaluable for checking for collision on all plans and optimizing non-coplanar plan angles. I think the integration into RayStation is of significant value and I can see it further streamlining and improving the efficiency of our workflow."

Thomas Carter, VP of Marketing, Vision RT, adds: "We are already seeing clinics changing their planning techniques, allowing their patients to benefit from the extra beam options MapRT provides. This integration has the potential to streamline workflows, reduce errors, and free up resources, all while improving treatment predictability. It also opens the path for automated, collision-free planning."

Björn Hårdemark, Deputy CEO, RaySearch: "Surface scanning is an excellent source of information about the most central aspect of radiation therapy " the patient. The tight integration between MapRT and RayStation makes this information available already during treatment planning, allowing the user to explore more creative beam configurations while maintaining clearance around the patient. It is a great example of how clinical benefit can be achieved through collaboration between radiation therapy technology vendors."

MapRT is approved for CE marking and clinical distribution in the EU and UK. A version without the API is currently cleared for sale in the USA, with API version 510(k) pending.

About Vision RT

Vision RT is the inventor ofSurface Guided Radiation Therapy(SGRT) which uses camera systems to track surface data, to offer more guidance across every step of the radiotherapy workflow: simulation, planning, treatment and dose visualization. We work tirelessly to improve the accuracy, efficiency, safety and comfort of radiation therapy.

Vision RT is part of the William Demant Invest (WDI) family, a leading Danish Medtech investor with a long-term investment perspective. The companies in WDI employ more than 21,000 people.

About RaySearch

RaySearch Laboratories AB (publ) is a medical technology company that develops innovative software solutions for improved cancer treatment. RaySearch markets the RayStation®* treatment planning system (TPS) and the oncology information system (OIS) RayCare®*. The most recent additions to the RaySearch product line are RayIntelligence® and RayCommand®*. RayIntelligence is an oncology analytics system (OAS) which enables cancer clinics to collect, structure and analyze data. RayCommand, a treatment control system (TCS), is designed to link the treatment machine and the treatment planning and oncology information systems.

RaySearch's software has been sold to over 1,100 clinics in 47 countries. The company was founded in 2000 as a spin-off from the Karolinska Institute in Stockholm and the share has been listed on Nasdaq Stockholm since 2003. More information is available at raysearchlabs.com.

About RayStation

RayStation®* is a flexible, innovative treatment planning system, chosen by many leading cancer centers worldwide. It combines unique features such as unmatched adaptive therapy capabilities, multi-criteria optimization, market-leading algorithms for treatment plan optimization for HDR brachytherapy and external beam therapy with photons, electrons, and protons, as well as helium and carbon ions. RayStation supports a wide range of treatment machines, providing one control center for all treatment planning needs and ensuring centers get greater value from existing equipment. RayStation also seamlessly integrates with RayCare®*. By harmonizing the treatment planning, the care of cancer patients worldwide is improved.



* Subject to regulatory clearance in some markets.

Johan Löf, founder and CEO, RaySearch Laboratories AB (publ)

Telephone: +46 (0) 8 510530 00 

johan.lof@raysearchlabs.com 

Learn more about us on:

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^[1] Ma M, Ren W, Li M, Niu C, Dai J. Dosimetric comparison of coplanar and non-coplanar beam arrangements for radiotherapy of patients with lung cancer: A meta-analysis. J Appl Clin Med Phys. 2021 Apr;22(4):34-43. doi: 10.1002/acm2.13197. Epub 2021 Feb 26. PMID: 33634946; PMCID: PMC8035566.

^[2] Kim ST, An HJ, Kim JI, Yoo JR, Kim HJ, Park JM. Non-coplanar VMAT plans for lung SABR to reduce dose to the heart: a planning study. Br J Radiol. 2020 Jan;93(1105):20190596. doi: 10.1259/bjr.20190596. Epub 2019 Oct 22. PMID: 31625759; PMCID: PMC6948076.

^[3] Lincoln JD, MacDonald RL, Syme A, Thomas CG. Static couch non-coplanar arc selection optimization for lung SBRT treatment planning. Phys Med Biol. 2023 Jul 21;68(15). doi: 10.1088/1361-6560/ace23f. PMID: 37369237.

^[4]Chapet O, Khodri M, Jalade P, N'guyen D, Flandin I, D'hombres A, Romestaing P, Mornex F. Potential benefits of using non-coplanar field and intensity modulated radiation therapy to preserve the heart in irradiation of lung tumors in the middle and lower lobes. Radiother Oncol. 2006 Sep;80(3):333-40. doi: 10.1016/j.radonc.2006.07.009. Epub 2006 Aug 24. PMID: 16934354.

^[5] J, F., et al. (2023). Locoregional breast radiotherapy including IMN: optimizing the dose distribution using an automated non-coplanar VMAT-technique. Acta oncologica (Stockholm, Sweden), [online] 62(10). doi:https://doi.org/10.1080/0284186X.2023.2264488.

^[6] Xu, Y., Ma, P., Hu, Z., Tian, Y., Men, K., Wang, S., Xu, Y. and Dai, J. (2021). Non-coplanar volumetric modulated arc therapy for locoregional radiotherapy of left-sided breast cancer including internal mammary nodes. Radiology and Oncology, 55(4), pp.499"507. doi:https://doi.org/10.2478/raon-2021-0045.

^[7] A, B., et al. (2023). Dosimetric Comparision of Coplanar versus Non-coplanar Volumetric Modulated Arc Therapy for Treatment of Bilateral Breast Cancers. Journal of medical physics, [online] 48(3). doi:https://doi.org/10.4103/jmp.jmp_36_23.

^[8] Biau J, Lopez L, Thivat E, Casile M, Millardet C, Saroul N, Pham-Dang N, Molnar I, Bourhis J, Lapeyre M. Postoperative SBRT in the treatment of early-stage oropharyngeal and oral cavity cancers with high-risk margins: A dosimetric comparison of volumetric modulated arc therapy with or without non-coplanar arcs and acute toxicity outcomes from the STEREOPOSTOP GORTEC 2017-03 phase 2 trial. Clin Transl Radiat Oncol. 2022 Nov 14;38:169-174. doi: 10.1016/j.ctro.2022.11.07. PMID: 36466746; PMCID: PMC9712819.

^[9]Woods KE, Ma TM, Cook KA, Morris ED, Gao Y, Sheng K, Kishan AU, Hegde JV, Felix C, Basehart V, Narahara K, Shen Z, Tenn S, Steinberg ML, Chin RK, Cao M. A Prospective Phase II Study of Automated Non-Coplanar VMAT for Recurrent Head and Neck Cancer: Initial Report of Feasibility, Safety, and Patient-Reported Outcomes. Cancers (Basel). 2022 Feb 14;14(4):939. doi: 10.3390/cancers14040939. PMID: 35205686; PMCID: PMC8870161.

^[10] Gayen S, Kombathula SH, Manna S, Varshney S, Pareek P. Dosimetric comparison of coplanar and non-coplanar volumetric-modulated arc therapy in head and neck cancer treated with radiotherapy. Radiat Oncol J. 2020 Jun;38(2):138-147. doi: 10.3857/roj.2020.00143. Epub 2020 May 26. PMID: 33012157; PMCID: PMC7533406.

^[11] Gayen S, Kombathula SH, Manna S, Varshney S, Pareek P. Dosimetric comparison of coplanar and non-coplanar volumetric-modulated arc therapy in head and neck cancer treated with radiotherapy. Radiat Oncol J. 2020 Jun;38(2):138-147. doi: 10.3857/roj.2020.00143. Epub 2020 May 26. PMID: 33012157; PMCID: PMC7533406.

^[12] Subramanian VS, Subramani V, Chilukuri S, Kathirvel M, Arun G, Swamy ST, Subramanian K, Fogliata A, Cozzi L. Multi-isocentric 4π volumetric-modulated arc therapy approach for head and neck cancer. J Appl Clin Med Phys. 2017 Sep;18(5):293-300. doi: 10.1002/acm2.12164. Epub 2017 Aug 20. PMID: 28834021; PMCID: PMC5874945.

^[13] Wild, E., Bangert, M., Nill, S. and Oelfke, U. (2015). Non-coplanar VMAT for nasopharyngeal tumors: Plan quality versus treatment time. Medical Physics, 42(5), pp.2157"2168. doi:https://doi.org/10.1118/1.4914863.

^[14] Rossi L, Cambraia Lopes P, Marques Leitão J, Janus C, van de Pol M, Breedveld S, Penninkhof J, Heijmen BJM. On the Importance of Individualized, Non-Coplanar Beam Configurations in Mediastinal Lymphoma Radiotherapy, Optimized With Automated Planning. Front Oncol. 2021 Apr 15;11:619929. doi: 10.3389/fonc.2021.619929. PMID: 33937025; PMCID: PMC8082440.

^[15]  Chen X, Jin D, Wang S, Li M, Huang P, Dai J. Non-coplanar intensity-modulated radiation therapy for young female patients with mediastinal lymphoma. J Appl Clin Med Phys. 2012 Nov 8;13(6):3769. doi: 10.1120/jacmp.v13i6.3769. PMID: 23149772; PMCID: PMC5718536.

^[16] Yu VY, Landers A, Woods K, Nguyen D, Cao M, Du D, Chin RK, Sheng K, Kaprealian TB. A Prospective 4π Radiation Therapy Clinical Study in Recurrent High-Grade Glioma Patients. Int J Radiat Oncol Biol Phys. 2018 May 1;101(1):144-151. doi: 10.1016/j.ijrobp.2018.01.048. Epub 2018 Jan 31. PMID: 29619962.

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