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Magnetic Resonance Safety Testing Services
"Throughout my professional career of serving the MRI community for more than 30 years, I have been committed to ensuring the safety of patients and healthcare workers." 
MAGNETIC RESONANCE SAFETY TESTING SERVICES (MRSTS) is the World’s most experienced MR-safety testing company that conducts comprehensive evaluations of implants, devices, objects, and materials.

MRSTS has access to MR systems operating from 0.2-Tesla to 7.0-Tesla, including dedicated-extremity and interventional MR systems. Testing includes assessment of magnetic field interactions, heating, induced currents, and artifacts.

In addition, sophisticated modeling techniques, performed by Ji Chen, Ph.D. MRI Safety Modeling, LLC. (, may be applied for further characterization of MRI issues for implants and devices. 

For a quote, or more information, please see the "Contact Us" page.
- Frank G. Shellock, Ph.D., President, Shellock R&D Services Inc., (dba, Magnetic Resonance Safety Testing Services)
The staff of MAGNETIC RESONANCE SAFETY TESTING SERVICES is uniquely qualified to accomplish all tasks related to the evaluation of medical implants, devices and materials for acceptable use in the magnetic resonance (MR) environment.

MRSTS provides unparalleled resources and services to clinical, research, and industry entities that require assistance and guidance on all aspects of MRI issues for implants and devices.

IMPORTANT NOTE: The results of implant testing may be posted on, which is the premier source of MRI safety information and reaches over 100,000 registered users.
We now offer MRI simulations to assess implants and devices.

For more information, please visit
Frank G. Shellock, Ph.D., the President of MAGNETIC RESONANCE SAFETY TESTING SERVICES, has more than 30 years of experience as a researcher and educator in the field of magnetic resonance (MR) imaging. He has served as a consultant to many MR system and medical product manufacturers.

In addition, Dr. Shellock serves as a member of the American Society for Testing and Materials (ASTM) International committee on Magnetic Resonance Safety.

Along with his staff, he has performed MR-safety tests on over 6,000 implants and devices, including aneurysm clips, stents, heart valve prostheses, orthopedic implants, vascular access ports, otologic implants, cardiovascular catheters, surgical instruments, electronically-activated implants (pacemakers, neurostimulation systems, etc.), monitoring and patient support equipment, and devices intended for use during interventional or MR-guided procedures (see the PUBLICATIONS section of this web site).
For your MRI modeling and simulation needs for implants and devices, please click below:

Safety is the premier source of MRI safety information and reaches over 100,000 registered users. (click "Learn More")

Additional MRI Safety Resources & Information
For the latest comprehensive and up-to-date MRI Safety Training programs, please click below:

The Institute for Magnetic Resonance Safety, Education, and Research. Please click below:

Reference Manual for Magnetic Resonance Safety, Implants, and Devices. Please click below:

Shellock R & D Services, Inc. has provided services to over 500 biomedical companies...

Dr. Shellock has authored more than 260 peer-reviewed articles (most pertaining to MRI safety; Many MRI safety articles authored by Dr. Shellock may be found posted as PDF files on ) and the most widely-read medical textbooks on MR safety, including:

Reference Manual for Magnetic Resonance Safety, Implants, and Devices - revised and updated with the latest information from the peer-reviewed literature. THE LIST now has information for thousands of implants and devices, including objects tested at 3.0-Tesla. To order, visit