International Stereotactic Radiosurgery Society

A global community of experts who share a passion for Stereotactic Radiosurgery (SRS), Stereotactic Body Radiation Therapy (SBRT) and other focal therapies.

Interested in attending the ISRS 2025 CNS Summit?

In order to register and submit abstracts, you must first login to your ISRS account or create your ISRS profile.
If you’re not a member, join ISRS and receive a significant discount when registering.

ISRS 2025 CNS Summit
June 4th-5th, 2025

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ISRS 2026 Congress
May 31st-June 3rd, 2026

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We have listened to our members and sponsors who consistently tell us ISRS should have an annual presence in order to share scientific and clinical expertise in SRS, SBRT and related focal therapies more frequently. Beginning in 2025, you will have a chance to Learn, Share & Excel with ISRS on an annual basis. Save the dates now!

Save-the-dates for two inspiring ISRS events

ISRS 2025 CNS Summit
June 4th-5th, 2025

Add to my calendar: Apple • Google • Office 365 • Outlook • Yahoo

ISRS 2026 Congress
May 31st-June 3rd, 2026

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Learn. Share. Excel.

The latest news, education, and events.

New ISRS Certified Center

Centro Médico ABC

Welcome to Centro Médico ABC, our newest ISRS Certified Center! We’re proud to recognize your commitment to excellence in SRS and look forward to your ongoing contributions to the ISRS community

Welcome SARO: New ISRS Affiliated Society

Saudi Association of Radiation Oncology (SARO) joins the ISRS Community

ISRS is proud to have SARO as our newest Affiliated Society and welcomes its members to ISRS

Upcoming ISRS Events

Two Opportunities to Learn, Share & Excel

We will welcome you to the 1st ISRS CNS Summit taking place in beautiful Geneva, Switzerland on 4th-5th June 2025, and look forward to you having you join us for the 17th ISRS Congress located in vibrant Sydney, Australia on 31st May – 3rd June 2026

ISRS 2025 CNS Summit: Apple • Google • Office 365 • Outlook • Yahoo

ISRS 2026 Congress: Apple • Google • Office 365 • Outlook • Yahoo

Events

The British Radiosurgery Society is pleased to host its 8th Annual Meeting in Bristol, UK

News

New ISRS Guideline – Stereotactic Body Radiotherapy for Liver Metastases

Webinars

Definitive Radiotherapy for Central or Ultra-Central Stage I Non-Small Cell Lung Cancer

Courses

SRS/SRT in Management of Intracranial Metastases, Parenchymal Brain Tumors, Genitourinary, Gynecological, and Abdominal Cancers; Medical Physics and Imaging for Radiosurgery

Connect with Other Experts

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"One of the values of a group like ISRS is that it's like minded individuals coming together, collaborating, sharing ideas. And a meeting like this every couple of years is very reinvigorating because you remember that other people are interested in the same things that you are. And we're all talking about the same types of topics. And it's really lovely to be able to do that in person instead of virtually. You don't get the same impact that you do when you're together as a group."