Essential Subcortical Tracts in Language and Reading. 3D-Tractography for Clinical Practice and Anatomic Correlation with Intraoperative Subcortical Electrostimulation

Jiménez-Peña, M. M.; Gil‐Robles, Santiago; Cano-Alonso, R.; Recio-Rodríguez, Manuel; Carrascoso-Arranz, Javier; Ruiz-Ocaña, Carlos; Martinez-Vega, Vicente

doi:10.1007/s00062-015-0429-4

Cited by 8 publications

(7 citation statements)

References 25 publications

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“…86,247 A similar approach is described by Jiménez-Peña et al for essential tracts in language and reading. 278 There have been reports on potential biomarkers for outcome prediction. These include lowered FA values and a close distance of lesion to tractography.…”

Section: Tractography In Neurosurgical Planningmentioning

confidence: 99%

Tractography in Neurosurgery: A Systematic Review of Current Applications

Wende

Hoffmann

Meixensberger

2020

J Neurol Surg A Cent Eur Neurosurg

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The ability to visualize the brain's fiber connections noninvasively in vivo is relatively young compared with other possibilities of functional magnetic resonance imaging. Although many studies showed tractography to be of promising value for neurosurgical care, the implications remain inconclusive. An overview of current applications is presented in this systematic review. A search was conducted for ((“tractography” or “fiber tracking” or “fibre tracking”) and “neurosurgery”) that produced 751 results. We identified 260 relevant articles and added 20 more from other sources. Most publications concerned surgical planning for resection of tumors (n = 193) and vascular lesions (n = 15). Preoperative use of transcranial magnetic stimulation was discussed in 22 of these articles. Tractography in skull base surgery presents a special challenge (n = 29). Fewer publications evaluated traumatic brain injury (TBI) (n = 25) and spontaneous intracranial bleeding (n = 22). Twenty-three articles focused on tractography in pediatric neurosurgery. Most authors found tractography to be a valuable addition in neurosurgical care. The accuracy of the technique has increased over time. There are articles suggesting that tractography improves patient outcome after tumor resection. However, no reliable biomarkers have yet been described. The better rehabilitation potential after TBI and spontaneous intracranial bleeding compared with brain tumors offers an insight into the process of neurorehabilitation. Tractography and diffusion measurements in some studies showed a correlation with patient outcome that might help uncover the neuroanatomical principles of rehabilitation itself. Alternative corticofugal and cortico-cortical networks have been implicated in motor recovery after ischemic stroke, suggesting more complex mechanisms in neurorehabilitation that go beyond current models. Hence tractography may potentially be able to predict clinical deficits and rehabilitation potential, as well as finding possible explanations for neurologic disorders in retrospect. However, large variations of the results indicate a lack of data to establish robust diagnostical concepts at this point. Therefore, in vivo tractography should still be interpreted with caution and by experienced surgeons.

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Section: Tractography In Neurosurgical Planningmentioning

confidence: 99%

Tractography in Neurosurgery: A Systematic Review of Current Applications

Wende

Hoffmann

Meixensberger

2020

J Neurol Surg A Cent Eur Neurosurg

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“…Common applications of diffusion MRI in the language domain include assessing the arcuate fasciculus and other white matter language‐associated tracts . In the sensorimotor domain, the most relevant question will usually entail the visualization of the corticospinal tract . In the visual domain, recent methodological advances now also allow for the delineation of such complex white matter structures as the Meyer loop, in addition to the more prominent posterior parts of the optic radiation …”

Section: Preconditionsmentioning

confidence: 99%

“…In particular, the region within and the statistical threshold at which such an index is calculated must be chosen with great care . Functionally‐defined regions of interest may be indicated, as may be taking into account overt brain lesions …”

Section: Preconditionsmentioning

confidence: 99%

Clinical application of advanced MR methods in children: points to consider

Wilke

Groeschel

Lorenzen

et al. 2018

Ann Clin Transl Neurol

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The application of both functional MRI and diffusion MR tractography prior to a neurosurgical operation is well established in adults, but less so in children, for several reasons. For this review, we have identified several aspects (task design, subject preparation, actual scanning session, data processing, interpretation of results, and decision‐making) where pediatric peculiarities should be taken into account. Further, we not only systematically identify common issues, but also provide solutions, based on our experience as well as a review of the pertinent literature. The aim is to provide the clinician as well as the imaging scientist with information that helps to plan, conduct, and interpret such a clinically‐indicated exam in a way that maximizes benefit for, and minimizes the burden on the individual child.

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“…At the subcortical level, various structures are involved. The putamen, the caudate, the thalamus, the inferior longitudinal fascicle (ILF), and the posterior part of the arcuate fascicle are all involved in reading (e.g., Arrington et al, 2017;Cheema et al, 2018;Jiménez-Peña et al, 2017;Zemmoura et al, 2015). Note.…”

mentioning

confidence: 99%

“…In the last decades, advances in neuroimaging and awake brain surgery have led to a considerable increase of data regarding the role of ILF in language. In addition to ILF’s known role in visual semantic processing (e.g., Herbet et al, 2018; Mandonnet et al, 2007; Sierpowska et al, 2019), studies using neuroimaging (e.g., Arrington et al, 2017; Horowitz-Kraus et al, 2014) and brain stimulation methods (e.g., Chan-Seng et al, 2014; Gaillard et al, 2006; Jiménez-Peña et al, 2017; Zemmoura et al, 2015) have associated this particular subcortical structure with reading and comprehension of written language. Although the aforementioned brain mapping studies provide evidence that stimulation or resection of the left ILF can lead to alexia (acquired dyslexia), none of them have attempted to interpret their findings according to the cognitive neuropsychological model for single word processing.…”

mentioning

confidence: 99%

Inferior Longitudinal Fascicle and Reading: Exploring Their Relationship Through a Brain Stimulation Case Study

Papatzalas

Papathanasiou

Paschalis

et al. 2021

Communication Disorders Quarterly

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Awake brain surgery allows for maximal tumor resection, while minimizing postoperative deficits, even when the tumor is located within eloquent brain regions. In the current study, we present the case of a patient who underwent awake craniotomy to remove a space-occupying lesion located at the left (dominant) temporal lobe. During subcortical mapping, electrical stimulation of the inferior longitudinal fasciculus caused severe errors (paralexias) on a semantic odd-word out task, but not on other tasks that use different input routes and processes. The cognitive neuropsychological model for single word processing assisted us to associate a specific structure (inferior longitudinal fascicle (ILF)) with a specific cognitive process (i.e., access to the semantic system). Our results highlight the importance of subcortical fascicles in reading and agree with previous studies regarding the critical role of ILF in reading comprehension.

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Essential Subcortical Tracts in Language and Reading. 3D-Tractography for Clinical Practice and Anatomic Correlation with Intraoperative Subcortical Electrostimulation

Cited by 8 publications

References 25 publications

Tractography in Neurosurgery: A Systematic Review of Current Applications

Tractography in Neurosurgery: A Systematic Review of Current Applications

Clinical application of advanced MR methods in children: points to consider

Inferior Longitudinal Fascicle and Reading: Exploring Their Relationship Through a Brain Stimulation Case Study

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