Background/objective: Accurately targeting specific regions of interest in the brain is pivotal for the success of neurosurgical procedures. For example, the outcome of brain tumor resection is improved dramatically when surgeons are better able to define surgical borders. Intraoperative magnetic resonance imaging (iMRI) helps reduce the risk of damaging critical areas of the brain and makes it possible to confirm a successful resection or determine the need for further resection prior to closing a patient's head and finalizing the surgery. Here we present a ground-based, iMRI system with a mobile 1-T cryogen-free imager.
Methods: An ex-vivo experimental test of the novel iMRI system is performed to demonstrate preoperative and intraoperative imaging.
Results: The ground-based, mobile iMRI system presented here was successfully used to obtain intraoperative MR images without moving the imaging target or compromising conventional surgical techniques.
Conclusion: The success of this experiment constitutes a major milestone towards the installation of a ground-based, high-field, mobile iMRI system in a hospital setting.
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http://dx.doi.org/10.1016/j.mri.2023.01.016 | DOI Listing |
Nature
November 2024
Department of Materials Science and Engineering, University of California, Irvine, CA, USA.
J Neurol Neurosurg Psychiatry
September 2024
German Center for Vertigo and Balance Disorders, Ludwig-Maximilians-University, Munich, Germany
Background: Vestibular migraine (VM), the most frequent episodic vertigo, is difficult to distinguish from Ménière's disease (MD) because reliable biomarkers are missing. The classical proof of MD was an endolymphatic hydrops (EH). However, a few intravenous gadolinium-enhanced MRI studies of the inner ear (MRI) also revealed an EH in VM.
View Article and Find Full Text PDFInt J Comput Assist Radiol Surg
September 2024
Research Campus STIMULATE, Otto-von-Guericke University (OvGU), Magdeburg, Germany.
Purpose: Surgical robotics have demonstrated their significance in assisting physicians during minimally invasive surgery. Especially, the integration of haptic and tactile feedback technologies can enhance the surgeon's performance and overall patient outcomes. However, the current state-of-the-art lacks such interaction feedback opportunities, especially in robotic-assisted interventional magnetic resonance imaging (iMRI), which is gaining importance in clinical practice, specifically for percutaneous needle punctures.
View Article and Find Full Text PDFFront Surg
August 2024
Steward Medical Group, Fort Lauderdale, FL, United States.
World Neurosurg
May 2024
Department of Neurosurgery, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan.
Background: Gliomas adjacent to the corticospinal tract (CST) should be carefully resected to preserve motor function while achieving maximal surgical resection. Modern high-field intraoperative magnetic resonance imaging (iMRI) enables precise visualization of the residual tumor and intraoperative tractography. We prospectively evaluated the extent of resection and distance between the tumor resection cavity and CST using 3-T iMRI combined with motor evoked potentials (MEP) in glioma surgery.
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