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首页> 外文期刊>Psychiatry Research. Neuroimaging >The left anterior right temporal (LART) placement for electroconvulsive therapy: A computational modelling study
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The left anterior right temporal (LART) placement for electroconvulsive therapy: A computational modelling study

机译:电耦合治疗的左前任颞(LART)放置:计算建模研究

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摘要

Electrode placement in electroconvulsive therapy (ECT) has a major impact on treatment efficacy and cognitive side effects. Left Anterior Right Temporal (LART) is a lesser utilised bilateral montage which may produce more optimal clinical outcomes relative to standard bitemporal ECT. In this study we used computational modelling to explore how stimulation effects from LART and two novel variants (LART - F3 and LART - Frontal) compared to the more common bilateral placements of bitemporal and bifrontal ECT. High resolution finite element human head models were generated from MRI scans of three subjects with Major Depressive Disorder. Differences in regional stimulation were examined through parametric tests for regions of interest and subtraction maps. Compared to bitemporal ECT, LART - Original resulted in significantly greater stimulation of the left cingulate gyrus (hypothesised to be associated with treatment efficacy), and relatively reduced stimulation of the bilateral hippocampi (potentially associated with cognitive side effects). No additional clinical benefit was suggested with the novel LART placements compared to the original LART. The original LART placement is a promising montage for further clinical investigation.
机译:电休克治疗(ECT)中的电极放置对治疗效果和认知副作用有重大影响。左前右颞区(LART)是一种使用较少的双侧蒙太奇,与标准双颞区ECT相比,它可能会产生更理想的临床效果。在这项研究中,我们使用计算模型探讨了LART和两种新变体(LART-F3和LART-FRONAL)与更常见的双颞和双额叶ECT双侧放置相比的刺激效果。高分辨率有限元人头模型由三名重度抑郁症患者的MRI扫描生成。通过对感兴趣区域和减法图进行参数测试,检查区域刺激的差异。与双颞ECT相比,LART-Original对左侧扣带回的刺激显著增加(假设与治疗效果相关),对双侧海马的刺激相对减少(可能与认知副作用相关)。与原始LART相比,新型LART放置没有额外的临床益处。最初的猪油放置是一个很有希望的蒙太奇进一步的临床研究。

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