
Despite careful and guideline-compliant screening procedures, adverse events and projectile incidents are on the rise and present a significant risk within MRI facilities. Metrasens works to help you achieve and exceed MRI safety best practices.
Best-in-class Advanced Ferromagnetic Detection Solutions for comprehensive MRI Safety
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Two complementary ferromagnetic detection systems for both Zone II and Zone IV work in tandem to minimize risks, enhance workflow, and provide peace of mind for healthcare professionals, ensuring MRI safety every step of the way.

Protect Patients and Staff

Reduce Alarm Fatigue

Optimize Workflow

DESIGNED FOR SAFETY AND SUCCESS


2024 ACR Manual
Ferromagnetic Detection Devices (FMDS)
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Permanently installed FMDS have demonstrated to be effective as adjuncts to the MR Safety screening process.
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Patient Screening FMDS: at a distance from entrance to Zone IV(typically Zone II to III). For screening of ambulatory patients/subjects
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Entryway FMDS: Final ferromagnetic check immediately before entering Zone Iv
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FMDS should be optimally sited in Zone II and Zone III depending on the workflow of the facility
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Handheld FMDS: Can be helpful to screen non-ambulatory patients if onMR Conditional transport equipment. pg 130**
One of the challenges at Children’s Mercy is to offer zero harm to patients. This is a tool that gets us much closer to that mark.
ZONE IV ENTRY CONTROL
Ferroguard Assure
The most trustworthy ferromagnetic detection system (FMDS) for MRI Zone IV protection. Eliminates nuisance alarms triggered by routine door movements to minimize alarm fatigue.
- Enhanced MRI safety
- Trustworthy, always-on-detection
- Flexible application
- Monitoring and data analytics
- Smart technology reduces Alarm Fatigue


ZONE II PATIENT SCREENER
Metrasens Ultra
A vital patient screening system for MRI safety guaranteed. Highly sensitive and precise, the Ultra detects the smallest undisclosed ferrous objects on or within the body, including pacemakers and medical implants.
- 5-zone location identification
- Detection sensitivity optimized for small objects
- Touch-to-screen operation for on-demand screening

Leading Healthcare Organizations Trust Metrasens

METRASENS CASE STUDY
During a patient screening process at the Children’s Hospital of Colorado, an unknown ferrous object with the potential to cause patient injury was identified. A 14-year-old pediatric patient needed an abdominal MRI scan completing the standard screening form and verbal evaluation.
While the patient completed the standard screening form and verbal evaluation, and despite being initially cleared by an FMD handheld detector, the patient failed to be cleared by both the Metrasens FMD systems, Ferroguard Screener (patient screening FMD) and Ferroguard Assure (Zone IV entry FMD). A subsequent X-ray revealed the presence of small magnets on both sides of the nasal septum.
The hospital’s commitment to MRI Safety and implementation of Metrasens FMD entry-control system and patient screener demonstrates their dedication to preventing projectile hazards and potential patient injuries, highlighting the ineffectiveness of using effective FMD systems in the MRI room.

“Without Metrasens FMD systems, we would have never identified the presence of a magnet on our patient.”
Ferromagnetic Detection Systems (FMDs) to significantly enhance safety standards and protect patients and staff from potential incidents, which have increased in recent years.
Additionally, the current regulatory environment recommends the use of FMD systems and mandates them for new construction, underscoring their importance in maintaining a safe and compliant healthcare environment.
Metrasens is a valued partner of design and construction professionals looking to integrate FMD detection systems as part of their projects, in alignment with MRI safety best practices.
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