Mri Basic Concepts - Boston Scientific ImageReady Mode D'emploi

MRI Basic Concepts

MRI is a diagnostic tool that uses three types of magnetic and electromagnetic fields to image soft tissue in
the body:
• A static magnetic field generated by a superconducting electromagnet coil, typically 1.5 Tesla (T)
in strength.
• Gradient magnetic fields of much lower intensity, but with high rates of change over time. Three
sets of gradient coils are used to create the gradient fields.
• A pulsed radio frequency (RF) field produced by transmission RF coils (approximately 64 MHz for
1.5 T Hydrogen/proton).
These fields may create physical forces or electrical currents that can affect the functioning of active
implantable medical devices (AIMDs) such as implantable pulse generators and leads. Therefore, only
patients implanted with specific configurations of the Precision Spectra™ System are eligible for MRI head
scans. Precision Spectra patients can undergo MRI head scans only by complying with all of the MRI
Conditions of Use outlined in this manual.
ImageReady™ MRI Guidelines for Precision Spectra™ Spinal Cord Stimulator System
MRI Basic Concepts
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