EASY4/MRI (Discontinued)

EASY4/MRI (Discontinued)

Exposure Acquisition System for Up To 4 High Precision Field / Temp Probes for MRI

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EASY4MRI has been designed to be compatible with hostile EM environments. Its shielded Data Acquisition Electronics for EASY4MRI (DAEasy4MRI) with optical cables have been successfully used in scanners up to 7 Tesla. It is a complete stand-alone measurement system which provides high precision, multi-channel electromagnetic near-field, SAR, and temperature evaluations. Up to 4 probes can be connected via individual DAEasy4MRI. Each measurement channel is characterized and processed individually. The measurement system is user friendly and enables high precision isotropic measurements from lower MHz to above 10 GHz with a spatial resolution of a few millimeters.

Field Measurement Capability

E-field frequency range: 20 - 6000 MHz
dynamic range: 2 - 1000 V/m
directivity: < ±0.3 dB
H-field frequency range: 20 - 3000 MHz
dynamic range: 0.01 - 5 A/m at 128 MHz or
            or      : 0.013 - 6.28 µT at 128 MHz in air
directivity: < ±0.2 dB
SAR frequency range: 10 - 6000 MHz
dynamic range: 10 µW/g - 100 W/kg
directivity: < ±0.3 dB
Temp dynamic range: 0°C - 60°C
noise: < 2 mK (sampling time: 0.1s)
spatial resolution: 1 mm
Sampling Rate < ms - hours

EASY4MRI can be used in hostile EMF environments.             
Incident fields, dosimetry and temperature evaluation.       
Short and long-time high precision field monitoring.     
Any high precision EMF measurements in reverberation chambers, anechoic chambers, open test sites, clinical environments or EMC laboratories.    
Free space E & H - field measurements.
Validation of simulation results (e.g. Sim4Life).

Examples from MRI applications include inter alia:

MRI compliance testing; Assessment of occupational exposure to EMF around MRI equipment; SAR evaluation of implantable medical devices; any high precision EMF measurements in reverberation chambers, anechoic chambers, open test sites, clinical environments or EMC laboratories

Phantom ASTM2009 and ELIT1.5/3.0 Phantoms for compliance testing of implants within MRI Environments. See ZMT Zurich MedTech AG for more information.
Working Modes Field strength meter (display of values, min, max and statistics)
Scope meter (field components or total values vs. time)
Separate process with individual parameters for each channel
Remote operation capability
Minimum Requirements One DAEasy4MRI and one field or temperature probe (not included)
System Embedded computer system with 8.4" color LCD, trackpad with mouse buttons and USB Drive and optional external keyboard
4 independent measurement channels, individually parametrizable, for optical or electrical connection of high precision field probes (via individual DAEasy4MRI)
Ethernet interface to external PC
USB, serial interfaces and expansion slots for future applications
Interface to LabView
Physical Specifications 19" module, table or rack mounted, 448.5 x 305 x 177 mm, approx. 7 kg
Power Supply AC: 100-240 V, 50-60 Hz, approx. 50 W
DC & Battery Operation
Remarks The EASY4MRI device cannot be operated in the close vicinity of the scanner.