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Brainshift correction using navigated intraoperative ultrasound informs intraoperative decision-making during glioma surgery

Rai A, Singh V, Shetty P, Moiyadi AV

Acta neurochirurgica, 2025

Abstract

Background: Brainshift can hamper the accuracy of neuronavigation systems in intra-axial tumor surgery. Correction of brainshift becomes imperative to avoid loss of accuracy and erroneous assessment of residual tumor as well as its relationship to critical eloquent substrates.

Method: This paper describes a case of a frontal tumor close to motor cortex. Workflow for rigid image fusion (RIF) based iUS-MR correction of brainshift is demonstrated highlighting its accuracy and clinical value in assessing tumor margins as well as functional boundaries.

Conclusion: iUS-MR fusion provides a cost-effective, accurate and practical solution for observation and correction of brainshift.

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