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Right parietal cortex and calculation processing. Intra-operative functional mapping of multiplication and addition

机译:右顶叶皮层及计算处理。术中乘法和加法功能映射

摘要

functionaludmapping of these areas has been only partially explored, however, and only a few discordant data are availableudin the surgical literature with regard to the right parietal lobe. The purpose of this study was to evaluate the clinicaludimpact of simple calculation in cortical electrostimulation of right-handed patients affected by a right parietal brainudtumor.udMethods. Calculation mapping in awake surgery was performed in 3 right-handed patients affected by highgradeudgliomas located in the right parietal lobe. Preoperatively, none of the patients presented with calculation deficits.udIn all 3 cases, after sensorimotor and language mapping, cortical and intraparietal sulcus areas involved in singledigitudmultiplication and addition calculations were mapped using bipolar electrostimulation.udResults. In all patients, different sites of the right parietal cortex, mainly in the inferior lobule, were detected asudbeing specifically related to calculation (multiplication or addition). In 2 patients the intraparietal sulcus was functionallyudspecific for multiplication. No functional sites for language were detected. All sites functional for calculationudwere spared during tumor resection, which was complete in all cases without postoperative neurological deficits.udConclusions. These findings provide intraoperative data in support of an anatomofunctional organization forudmultiplication and addition within the right parietal area. Furthermore, the study shows the potential clinical relevanceudof intraoperative mapping of calculation in patients undergoing surgery in the right parietal area. Further andudlarger studies are needed to confirm these data and assess whether mapped areas are effectively essential for function.
机译:这些区域的功能性/贴图仅被部分研究,但是,在外科文献中,关于右顶叶的数据很少。这项研究的目的是评估简单计算在右手顶叶脑肿瘤对右手患者皮层电刺激中的临床影响。 udMethods。在清醒手术中,对位于右顶叶的高级 udgliomas影响的3位右手患者进行了计算绘图。术前,所有患者均未出现计算缺陷。 ud在所有3例患者中,在感觉运动和语言作图后,使用双极电刺激对涉及单数 ud乘法和加法计算的皮层和顶壁沟区域进行了绘制。在所有患者中,检测到的右顶叶皮层的不同部位(主要在下小叶)是由于与计算(乘法或加法)特别相关。在2例患者中,顶上沟在功能上对增殖没有特异性。未检测到语言的功能站点。在肿瘤切除过程中,所有可用于计算的部位均被保留 ud,在所有情况下这些部位均完整,无术后神经功能缺损。 ud结论。这些发现提供了术中数据,以支持解剖功能组织在右顶叶区域内的乘和加。此外,该研究还显示了在右顶区进行手术的患者术中计算的潜在临床相关性 udof计算的映射。需要进一步和更大的研究来确认这些数据并评估所绘制的区域对于功能是否有效必不可少。

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