Parameter analysis in stereoelectroencephalography-guided radiofrequency thermocoagulation: A common basis for objective comparison between protocols

IF 2 4区医学 Q3 CLINICAL NEUROLOGY

Epilepsy Research Pub Date : 2024-10-30 DOI:10.1016/j.eplepsyres.2024.107472

Luca Zanuttini , Federico Mason , Lorenzo Ferri , Elena Pasini , Lidia Di Vito , Roberto Mai , Laura Tassi , Laura Castana , Gianfranco Vornetti , Lorenzo Muccioli , Luigi Cirillo , Francesca Bisulli , Roberto Michelucci , Raffaele Lodi , Francesco Cardinale , Matteo Martinoni

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引用次数: 0

Abstract

Objective

Stereoelectroencephalography-guided radiofrequency thermocoagulation (SEEG-guided RF-TC) is an invasive procedure based on stereotactic lesioning of cortical targets in the brain using bipolar current through electrode contacts within the SEEG implant. To date, several RF-TC protocols have been described in the literature; however, a consensus has yet to be reached. This work aims to analyze the electrical parameters during RF-TC processes, offering a method to objectively describe and compare different SEEG-guided RF-TC protocols.

Methods

The study included patients who underwent RF-TC procedures at the IRCCS Istituto delle Scienze Neurologiche di Bologna from February 2022 to May 2023. During each procedure, modifications of the following parameters were measured: voltage, current, impedance, and electric power. An ad-hoc algorithm was implemented to detect abrupt impedance raises, which reflects the occurrence of the thermocoagulation. A two-sample t-test was used to compare parameter curves in RF-TC of different brain structures.

Results

A total of ninety-two RF-TC procedures were performed in eight patients according to a standardized protocol. During each procedure, impedance levels started at about

700 Ω

and rose up to

1300 Ω

, displaying an erratic pattern characterized by one or multiple raises. All measured parameters exhibited similar trends until the first peak, after which changes were influenced by the frequency of impedance raises. No significant correlations were observed between parameter modifications in distinct anatomical sites of RF-TC.

Significance

The systematic analysis of electrical parameters may represent a reliable tool to compare different RF-TC protocols, paving the way for identifying optimal configurations for SEEG-guided RF-TC procedures in the future.

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立体脑电图引导射频热凝术的参数分析：客观比较不同方案的共同基础

目的立体脑电图引导下射频热凝术（SEEG-guided RF-TC）是一种侵入性手术，其原理是使用双极电流通过 SEEG 植入体内的电极触点对大脑皮层靶点进行立体定向病变。迄今为止，文献中已描述了几种 RF-TC 方案，但尚未达成共识。这项研究旨在分析 RF-TC 过程中的电参数，为客观描述和比较不同的 SEEG 引导的 RF-TC 方案提供一种方法。研究对象包括 2022 年 2 月至 2023 年 5 月期间在博洛尼亚神经科学研究所（IRCCS Istituto delle Scienze Neurologiche di Bologna）接受 RF-TC 手术的患者。在每次手术过程中，都对以下参数进行了测量：电压、电流、阻抗和功率。采用了一种临时算法来检测阻抗的突然升高，这反映了热凝固的发生。采用双样本 t 检验比较不同脑结构 RF-TC 的参数曲线。在每个过程中，阻抗水平从大约 700Ω 开始上升到 1300Ω，表现出不稳定的模式，其特点是一次或多次上升。在达到第一个峰值之前，所有测量参数都呈现出相似的趋势，之后的变化受阻抗上升频率的影响。电参数的系统分析可能是比较不同 RF-TC 方案的可靠工具，为将来确定 SEEG 引导的 RF-TC 程序的最佳配置铺平了道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Epilepsy Research 医学-临床神经学

CiteScore

0.10

自引率

4.50%

发文量

143

审稿时长

62 days

期刊介绍： Epilepsy Research provides for publication of high quality articles in both basic and clinical epilepsy research, with a special emphasis on translational research that ultimately relates to epilepsy as a human condition. The journal is intended to provide a forum for reporting the best and most rigorous epilepsy research from all disciplines ranging from biophysics and molecular biology to epidemiological and psychosocial research. As such the journal will publish original papers relevant to epilepsy from any scientific discipline and also studies of a multidisciplinary nature. Clinical and experimental research papers adopting fresh conceptual approaches to the study of epilepsy and its treatment are encouraged. The overriding criteria for publication are novelty, significant clinical or experimental relevance, and interest to a multidisciplinary audience in the broad arena of epilepsy. Review articles focused on any topic of epilepsy research will also be considered, but only if they present an exceptionally clear synthesis of current knowledge and future directions of a research area, based on a critical assessment of the available data or on hypotheses that are likely to stimulate more critical thinking and further advances in an area of epilepsy research.