![]() Neurostimulation should not be used on patients who are poor surgical risks or patients with multiple illnesses or active general infections. The following warnings apply to this neurostimulation system. For more information about MR Conditional products, visit the Abbott Medical product information page at neuromodulation.abbott/MRI-ready. ![]() For more information about MR Conditional neurostimulation components and systems, including equipment settings, scanning procedures, and a complete listing of conditionally approved components, refer to the MRI procedures clinician's manual for neurostimulation systems (available online at medical.abbott/manuals). Some models of this system are Magnetic Resonance (MR) Conditional, and patients with these devices may be scanned safely with magnetic resonance imaging (MRI) when the conditions for safe scanning are met. This system is contraindicated for patients who are unable to operate the system or who have failed to receive effective pain relief during trial stimulation. ![]() This neurostimulation system is indicated as an aid in the management of chronic, intractable pain of the trunk and/or limbs, including unilateral or bilateral pain associated with the following: failed back surgery syndrome and intractable low back and leg pain. The system is intended to be used with leads and associated extensions that are compatible with the system. This neurostimulation system is designed to deliver low-intensity electrical impulses to nerve structures. Read this section to gather important prescription and safety information. Neurosurgery 1999 44:118-126.Spinal Column Stimulation (SCS) PRESCRIPTION AND SAFETY INFORMATION Magnetic resonance imaging with implanted neurostimulators: An in vitro and in vivo study. Tronnier VM, Staubert A, Hähnel S, Sarem-Alsani A. (testing of the Freedom-4 externally powered SCS). Evaluation of magnetic resonance imaging issues for a wirelessly powered lead used for epidural, spinal cord stimulation. MRI conditionality in patients with spinal cord stimulation devices. Feasibility of cerebral magnetic resonance imaging in patients with externalized spinal cord stimulator. (It may be possible to perform MRI in selected patients with "MR Unsafe" legacy SCSs if care is taken). Magnetic resonance imaging in patients with spinal neurostimulation systems. After the exam, MRI-mode should be turned off and settings returned to pre-MRI values. ĭe Andres J, Valía JC, Cerda‐Olmedo G et al. Visual and auditory monitoring should be continuously performed during the scan. The patient must be in a cognitive state able to provide immediate feedback concerning any problems during the examination. For several models there are restrictions on the use of transmit body coils and power deposition limits dependent on the location of magnet isocenter. Limits for maximum spatial gradient, gradient slew rate, total imaging time, and RF power dissipation measured by average SAR or maximum B 1+RMS must be followed explicitly. These conditions will vary significantly between manufacturers and SCS models. All current MR-conditional SCS devices are restricted to ¹H imaging in horizontal bore cylindrical magnets operating at 1.5 or 3.0T. Only the supine or prone patient positions are allowed. The IPG should be turned off or placed in "MRI Mode" if available. ![]() The IPG battery should be fully charged and lead impedances should measure within expected values.
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