Magnetic Resonance Imaging in Patients with Spinal Neurostimulation Systems

Andrés, José De; Valía, Juan Carlos; Cerdá-Olmedo, Germán; Quiroz, Carolina; Villanueva, V.; Martinez-Sanjuan, Vincente; Leon‐Casasola, Oscar de

doi:10.1097/01.anes.0000264776.17533.06

Cited by 48 publications

(50 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is expressed in weight per kilogram. A letter to the editor is the only report of MRI with an MRI conditional SCS lead in place [2,11,12]. In our time of implanting MRI conditional leads, we have attempted to order 3 MRIs.…”

Section: Resultsmentioning

confidence: 99%

MRI Conditionality in Patients with Spinal Cord Stimulation Devices

Rubino¹,

Adepoju²,

Kumar³

et al. 2016

Stereotact Funct Neurosurg

View full text Add to dashboard Cite

Background: Because of the commonality of diagnostic magnetic resonance imaging (MRI), MRI conditional technology has increased throughout the device industry. It is often difficult to be aware of MRI specifications for each device. Objectives: We provide a review of the clinical experience with MRI and spinal cord stimulation (SCS) devices and develop a general reference of current device/MRI specifications. Methods: We reviewed the available literature on the clinical experience with SCS devices and examined its specifications. Results: We developed a user-friendly table of the specific compatibility of SCS devices in the USA and the European Union, and examined the existing literature on the clinical experience with MRI and SCS devices. We share our experience with obtaining spine MRI with MRI conditional SCS leads. Conclusion: By describing SCS device specifications and reviewing the literature, we provide a guide to implanting and treating physicians on obtaining MRIs in patients who have SCS devices.

show abstract

Section: Resultsmentioning

confidence: 99%

MRI Conditionality in Patients with Spinal Cord Stimulation Devices

Rubino¹,

Adepoju²,

Kumar³

et al. 2016

Stereotact Funct Neurosurg

View full text Add to dashboard Cite

show abstract

“…Particular sequences like fat suppressed contrast enhanced T1 weighted series that apply a high specific absorption rate have to be avoided. However, these are not a component of the standard spine protocol either Only few papers are available discussing the use of MRI in patient with implanted SCS like the study by De Andres et al [5]. We followed his recommendations regarding reduction of specific absorption rate and furthermore aimed to quantify patient safety and satisfaction and image quality as described above.…”

Section: Discussionmentioning

confidence: 99%

“…Only few studies investigated the use of spinal MRI in patients with SCS or intrathecal pump system [5,6,9,12,16,23] demonstrating feasibility and safety but higher patient numbers or effects of implanted SCS on image quality has not been studied. Hazards may arise from the static magnetic field that may exert forces on the implanted devices.…”

Section: Introductionmentioning

confidence: 99%

Spinal magnetic resonance imaging with reduced specific absorption rate in patients harbouring a spinal cord stimulation device - A single-centre prospective study analysing safety, tolerability and image quality

et al. 2013

View full text Add to dashboard Cite

BACKGROUND:Spinal cord stimulation (SCS) is an accepted treatment in patients with failed back surgery (FBS), complex regional pain syndrome (CRPS) and persistent radicular pain following surgery. In order to avoid patient hazards or device malfunction manufacturers advise to abstain from magnetic resonance imaging (MRI) in patients with implanted electrodes or pulse generators. METH-ODS:In a prospective study, 13 patients harbouring an implanted Medtronic Spinal Cord Stimulation (SCS) device underwent MRI (1.5 T) of the lumbar (n = 13), the cervical (n = 2) or the thoracic spine (n = 1) following the development of new spinal symptoms. An adapted MRI protocol was used limiting the transmitted energy and specific absorption rate. Tolerability and safety were assessed by means of a standardized patient evaluation form documenting pain on a visual analogue scale (0-10), neurologic deficit, and discomfort during the scan. In addition, overall satisfaction with the examination procedure was rated on a Likert scale (1-5). Image quality was rated independently and blinded to the presence of a SCS device by the radiologist and the surgeon as equivalent, superior or inferior compared to the standard spine MRI examination. RESULTS:None of the 13 patients investigated by the modified spinal MRI protocol experienced new neurological deficits, worsening of symptoms or a defect/malfunction of the implant device. Three patients (23.1 %) reported transient warm sensation in the location of the electrode and in one case intermittent slight tingling in the lower extremities. Overall satisfaction with the examination was 1.13 ± 0.34 according to Likert scale (1-5). The image quality was rated -not statistically significant -slightly inferior to standard lumbar spine imaging (0.82 ± 0.54) with a kappa value of 0.68 between the two investigators. MRI examinations detected relevant and new lesions in 9 (69.2 %) patients which affected treatment in 8 (61.5 %) individuals. CONCLUSION:Using a protocol with a reduced specific energy absorption rate, spinal MRI examinations in patients with SCS can be considered safe. The current view that neurostimulators are a general contraindication to MR examinations has to be reconsidered in patients with new or progressive spinal symptoms.

show abstract

“…MRI involves three energy fields, namely a strong static magnetic field and its associated spatial gradient, a pulsed gradient magnetic field, and a pulsed radiofrequency field. Any one, or a combination, of these fields may affect SCS function [6]. The static field can affect the SCS extension cable or the IPG [7].…”

Section: Discussionmentioning

confidence: 99%

Spinal cord stimulator malfunction caused by radiofrequency neuroablation -A case report-

Jeon

Shin

Kim

et al. 2010

Korean J Anesthesiol

View full text Add to dashboard Cite

The implantation of spinal cord stimulators (SCSs) to treat chronic intractable pain is steadily increasing. And there is an increased likelihood of instances where other therapies or procedures are found to interfere with SCS function, which in turn may result in pain. Since SCS utilize electric impulses as well as magnets, special considerations need for patients with a SCS in situ who require these procedures. The present report describes a case where radiofrequency (RF) ablation of the third occipital nerve resulted in spontaneous activation of a cervical SCS device.

show abstract

Magnetic Resonance Imaging in Patients with Spinal Neurostimulation Systems

Cited by 48 publications

References 18 publications

MRI Conditionality in Patients with Spinal Cord Stimulation Devices

MRI Conditionality in Patients with Spinal Cord Stimulation Devices

Spinal magnetic resonance imaging with reduced specific absorption rate in patients harbouring a spinal cord stimulation device - A single-centre prospective study analysing safety, tolerability and image quality

Spinal cord stimulator malfunction caused by radiofrequency neuroablation -A case report-

Contact Info

Product

Resources

About