Medhealth Review

RTsafe Facilitates ISRS Certification

Leading provider of quality assurance products and services announces new service to help radiosurgery departments meet quality assurance and patient safety standards

Radiosurgery departments aiming to achieve ISRS (International Stereotactic Radiosurgery Society) certification can now streamline their preparation process with the help of RTsafe. As a leading provider of End-to-End Stereotactic Radiosurgery products and services, RTsafe has launched a dedicated consulting service to help applicants achieve the stringent quality assurance and patient safety requirements of ISRS.

The ISRS Certification Service mandates that radiosurgery departments demonstrate proficiency in their processes and procedures through a comprehensive review and documentation. To ensure a successful dosimetry audit, centres can now draw on RTsafe’s expertise, which employs the same equipment and methodology used by ISRS auditors.

RTsafe’s consulting services provide guidance and support to identify areas for improvement and develop strategies to meet the exacting standards established by ISRS. By enlisting RTsafe’s assistance, centres gain access to a comprehensive package comprising a Prime phantom combined with Remote Dosimetry Services. RTsafe’s Prime provides comprehensive dosimetry in a true-to-life human anatomy phantom, while the company’s Remote Dosimetry Services are fully outsourced quality control processes for radiation oncology, verifying Point, 2D & 3D dosimetric and geometric accuracy through independent measurements. Thus, ISRS certification candidates are supported every step of the way, enabling them to achieve the required level of accuracy for their treatment objectives.

The results of RTsafe’s evaluation are reported using carefully selected gamma passing rates, specifically designed for SRS (Stereotactic Radiosurgery) plan analysis. These passing rates are in accordance with the tolerance limits proposed by ISRS, ensuring that centres are well-prepared for the certification process.

“Collaborating with RTsafe will help prepare the department for the ISRS Certification Service and demonstrate a commitment to the highest quality patient care,” stated Evangelos Pappas, Chief Scientific Officer and Founder of RTsafe. “We are proud to offer our expert services to radiosurgery departments, enabling them to navigate the certification process with confidence and excellence.”

“By partnering with RTsafe, radiosurgery departments can proactively enhance their practices, ensuring the utmost precision and safety in patient treatments,” stated Ian Paddick, Chair of the ISRS Certification Committee. “RTsafe’s extensive experience in external dosimetry evaluation and adherence to ISRS guidelines make them the ideal choice for centres aspiring to attain ISRS certification.”

For more information on RTsafe’s consulting services and the preparation process for ISRS certification, please visit or contact

By Ian Paddick, Chair of the ISRS Certification Committee

About RTsafe

RTsafe is a medical technology company that has developed a unique approach to quality assurance that is making a contribution to the safety and accuracy of radiotherapy for cancer and other medical conditions. It combines proven expertise in medical physics with highly accurate 3D printing technology to create pseudo‐in‐vivo dosimetry phantoms for use in end‐to‐end commissioning, benchmarking, and patient‐specific quality assurance in stereotactic radiotherapy. The anatomically accurate effigies enable medical professionals to simulate therapeutic interventions for each patient ahead of actual treatment and help radiotherapy technology innovators to verify the performance of their products. See

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