Accuracy and Distortion of Deep Brain Stimulation Electrodes on Postoperative MRI and CT

Pinsker, Marcus O.; Herzog, Jacques A.; Falk, Daniela; Volkmann, Jens; Deuschl, Günther; Mehdorn, Matthias

doi:10.1055/s-2008-1077075

Cited by 64 publications

(44 citation statements)

References 6 publications

(6 reference statements)

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“…Comparison of electrode artifact centers between CT and MRI led to both incongruent and congruent localization findings. The electrode artifact is found to be smaller and more concentric on CT in comparison with MRI, but mean differences in all 3 stereotactic coordinates were found to be less than 1 mm, an error small enough to not be considered clinically relevant [21]. When applying correct window levels, CT offers a sharp and highly contrasted lead artifact which facilitates localization of the lead tip.…”

Section: Discussionmentioning

confidence: 99%

Analysis of Stereotactic Accuracy in Patients Undergoing Deep Brain Stimulation Using Nexframe and the Leksell Frame

Bot

Munckhof

Bakay

et al. 2015

Stereotact Funct Neurosurg

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Objective: To determine and compare the accuracy of Nexframe and the Leksell stereotactic frame in deep brain stimulation (DBS) procedures. Background: The ‘frameless' Nexframe uses bone fiducials rather than a head-mounted frame, which offers potential benefits for both the patient and the surgical team. Accuracy of lead implantation and factors affecting this accuracy are of crucial importance but have not been extensively studied for the frameless system. Design/Methods: The location of 194 (Leksell frame, n = 116; Nexframe, n = 78) DBS leads was determined on postoperative MRI. Obtained stereotactic coordinates were compared with expected intraoperative target coordinates. Resulting absolute errors in the X (medial-lateral), Y (anterior-posterior), and Z (dorsal-ventral) coordinates (ΔX, ΔY, and ΔZ) were then used to calculate the vector error (VE). The vector error describes the total error in 3-D space and represents our main outcome measure. Results: The vector error (mean ± SD) was 2.8 ± 1.3 for Nexframe and 2.5 ± 1.2 for the Leksell frame (p = 0.43). For Nexframe, absolute X, Y, and Z errors were 1.4 ± 1.3, 1.7 ± 1.2, and 1.0 ± 0.9 mm. For the Leksell frame, the absolute X, Y, and Z errors were 1.4 ± 1.0, 1.2 ± 1.0, and 1.3 ± 0.9 mm. On the anterior-posterior plane (Y coordinate), the Leksell frame was more accurate than Nexframe (p = 0.04). In contrast, Nexframe was more accurate on the dorsal-ventral plane (Z coordinate) (p = 0.04). There was no difference in accuracy between the two methods on the medial-lateral plane (X coordinate). Conclusion: This comparison of Nexframe and the Leksell frame shows that both techniques have equivalent overall 3-D accuracy.

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Section: Discussionmentioning

confidence: 99%

Analysis of Stereotactic Accuracy in Patients Undergoing Deep Brain Stimulation Using Nexframe and the Leksell Frame

Bot

Munckhof

Bakay

et al. 2015

Stereotact Funct Neurosurg

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“…The fused image inherits MRI's high anatomical resolution and CT's high geometric accuracy, but this method increases technical and procedural complexity and may introduce image fusion error. Advanced image fusion algorithms are needed to minimize this error [56,57,59,60]. Another effective strategy is to develop MRI-compatible devices or high-resolution MRI systems, which has become a trend in recent years [12,13,15,25,35,41,54,61,62].…”

Section: Discussionmentioning

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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“…The limits of precision of anatomical atlases have often been discussed [21][22][23] and when available anatomical structures should be identified directly on MR images. Nevertheless, in case of planning procedures on CT images, or in case of invisible or hardly identifiable …”

Section: Precision Of Anatomical Datamentioning

confidence: 99%

Relationship Between Laser Doppler Signals and Anatomy During Deep Brain Stimulation Electrode Implantation Toward the Ventral Intermediate Nucleus and Subthalamic Nucleus

Wårdell¹,

Zsigmond

Richter³

et al. 2013

Operative Neurosurgery

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Accuracy and Distortion of Deep Brain Stimulation Electrodes on Postoperative MRI and CT

Cited by 64 publications

References 6 publications

Analysis of Stereotactic Accuracy in Patients Undergoing Deep Brain Stimulation Using Nexframe and the Leksell Frame

Analysis of Stereotactic Accuracy in Patients Undergoing Deep Brain Stimulation Using Nexframe and the Leksell Frame

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

Relationship Between Laser Doppler Signals and Anatomy During Deep Brain Stimulation Electrode Implantation Toward the Ventral Intermediate Nucleus and Subthalamic Nucleus

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