Accuracy of Magnetic Resonance Imaging–Directed Frame-Based Stereotaxis

Thani, Nova; Bala, Arul; Lind, Christopher R. P.

doi:10.1227/neu.0b013e3182320bd6

Cited by 14 publications

(19 citation statements)

References 37 publications

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“…These systems can be classified into 3 groups, the frame-based, the frameless and the iMRI-guided systems. The frame-based systems include the Leksell system (Elekta Instruments Inc., Sweden) [18,31,41], the Zamorano-Dujovny system (Stryker-Leibinger Inc., Germany) [19], the Riechert-Mundinger system (Innomed Pte Ltd., Germany) [20], the Cosman-Roberts-Wells system (Radionics Inc., USA) [17,39,42] and the Neuromate robot (Renishaw Inc., UK) [43]. The frameless systems include NexFrame (Image-Guided Neurologics Inc., USA) [21,26,32] and the STarFix microTargeting Platform (FHC Inc., USA) [22,27,44].…”

Section: Resultsmentioning

confidence: 99%

Review on Factors Affecting Targeting Accuracy of Deep Brain Stimulation Electrode Implantation between 2001 and 2015

Li¹,

Zhang

Yan

et al. 2016

Stereotact Funct Neurosurg

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Background: Accurate implantation of a depth electrode into the brain is of the greatest importance in deep brain stimulation (DBS), and various stereotactic systems have been developed for electrode implantation. However, an updated analysis of depth electrode implantation in the modern era of DBS is lacking. Objective: This study aims at providing an updated review on targeting accuracy of DBS electrode implantation by analyzing contemporary DBS electrode implantation operations from the perspective of precision engineering. Methods: Eligible articles with information on targeting accuracy of DBS electrode implantation were searched in the PubMed database. Results: An average targeting error of DBS electrode implantation is reported to decrease toward 1 mm; the standard deviation of targeting error is decreasing toward 0.5 mm. Targeting accuracy is not only found to be affected by individual surgical steps, but also systematically affected by the architecture of the implantation operation. Conclusion: A systematic strategy should be adopted to further improve the targeting accuracy of depth electrode implantation. Attention should be paid to optimizing the whole electrode implantation operation, which can help minimize error accumulation or amplification throughout the serially connected procedures for DBS electrode implantation.

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Section: Resultsmentioning

confidence: 99%

Review on Factors Affecting Targeting Accuracy of Deep Brain Stimulation Electrode Implantation between 2001 and 2015

Li¹,

Zhang

Yan

et al. 2016

Stereotact Funct Neurosurg

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“…The PSA was targeted bilaterally under general anesthesia, using the MRI-directed implantable guide tube technique as a staged procedure. 6,9 Carbothane proxy markers of electrode position (NeuroGuide, Renishaw Plc) were placed stereotactically to the cZI targets, and a 3-T intraoperative MRI study was performed after administration of a second general anesthetic agent. Once position was confirmed at the posteromedial border of the STN (Fig.…”

Section: Operationmentioning

confidence: 99%

Drowning hazard with deep brain stimulation: case report

Bangash

Thorburn

Garcia-Vega

et al. 2016

JNS

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The caudal zona incerta target within the posterior subthalamic area is an investigational site for deep brain stimulation (DBS) in Parkinson disease (PD) and tremor. The authors report on a patient with tremor-predominant PD who, despite excellent tremor control and an otherwise normal neurological examination, exhibited profound difficulty swimming during stimulation. Over the last 20 years, anecdotal reports have been received of 3 other patients with PD who underwent thalamic or pallidal lesioning or DBS surgery performed at the authors' center and subsequently drowned. It may be that DBS puts patients at risk for drowning by specifically impairing their ability to swim. Until this finding can be further examined in larger cohorts, patients should be warned to swim under close supervision soon after DBS surgery.

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“…While the definition of target structures may be improved with increased MRI field strengths, image-guided lead placement could conversely suffer due to limiting factors that are also in turn proportionate to the strength of the magnetic field. For example, as the magnet strength increases, so do the image distortions caused by magnetic field inhomogeneities and gradient field nonlinearities [10,11,12,13]. Moreover, image distortion also results from differences in magnetic susceptibility between brain tissues and foreign objects, and these distortions are likewise larger with a higher magnetic field strength.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Deep Brain Stimulation Lead Targeting Accuracy and Procedure Duration between 1.5- and 3-Tesla Interventional Magnetic Resonance Imaging Systems: An Initial 12-Month Experience

Southwell

Narvid²,

Martin³

et al. 2016

Stereotact Funct Neurosurg

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Background: Interventional magnetic resonance imaging (iMRI) allows deep brain stimulator lead placement under general anesthesia. While the accuracy of lead targeting has been described for iMRI systems utilizing 1.5-tesla magnets, a similar assessment of 3-tesla iMRI procedures has not been performed. Objective: To compare targeting accuracy, the number of lead targeting attempts, and surgical duration between procedures performed on 1.5- and 3-tesla iMRI systems. Methods: Radial targeting error, the number of targeting attempts, and procedure duration were compared between surgeries performed on 1.5- and 3-tesla iMRI systems (SmartFrame and ClearPoint systems). Results: During the first year of operation of each system, 26 consecutive leads were implanted using the 1.5-tesla system, and 23 consecutive leads were implanted using the 3-tesla system. There was no significant difference in radial error (Mann-Whitney test, p = 0.26), number of lead placements that required multiple targeting attempts (Fisher's exact test, p = 0.59), or bilateral procedure durations between surgeries performed with the two systems (p = 0.15). Conclusions: Accurate DBS lead targeting can be achieved with iMRI systems utilizing either 1.5- or 3-tesla magnets. The use of a 3-tesla magnet, however, offers improved visualization of the target structures and allows comparable accuracy and efficiency of placement at the selected targets.

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Accuracy of Magnetic Resonance Imaging–Directed Frame-Based Stereotaxis

Cited by 14 publications

References 37 publications

Review on Factors Affecting Targeting Accuracy of Deep Brain Stimulation Electrode Implantation between 2001 and 2015

Review on Factors Affecting Targeting Accuracy of Deep Brain Stimulation Electrode Implantation between 2001 and 2015

Drowning hazard with deep brain stimulation: case report

Comparison of Deep Brain Stimulation Lead Targeting Accuracy and Procedure Duration between 1.5- and 3-Tesla Interventional Magnetic Resonance Imaging Systems: An Initial 12-Month Experience

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