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Intraoperative MRI:
The Clinical Impact

Clinical literature highlights the impact of iMRI, particularly in maximizing brain tumor removal which leads to improved survival rates and quality of life. These results demonstrate the importance of intraoperative MRI in tumor surgery:

  • 30% more total or gross total resection by the end of the procedure was seen in patients when iMRI was used. 1,2,7,8 For example:
    • - Chicoine et al, 2011: 65% without iMR; 93% with iMR
    • - Chen et al, 2011: 52% without iMR; 88% with iMR
  • This is because with iMRI, additional tumor was observed and removed in 55% of glioma cases. 1-6
  • In all cases studied, information shown by the iMRI caused the surgeon to modify the procedure in 40% of procedures. 1-3

VISIUS Surgical Theatre with intraoperative MRI is making a difference in neurosurgery today, considering:

  • Improved outcomes and rates among adult patients with low-grade gliomas (brain tumors) are predicted by greater removal of these tumors. 11
  • Patients with at least 90% extent of resection had 5- and 8-year overall survival (OS) rates of 97% and 91%, respectively, whereas patients with less than 90% EOR had 5- and 8- year OS rates of 76% and 60%, respectively.” 11
  • For every 1% increase in low-grade glioma tumor resection, there is a 2% decrease in risk of death.” 12
  • iMRI reduces repeat surgeries for pediatric patients undergoing resections for brain tumors and epilepsy 13
    • - With iMRI: No additional surgeries in less than two weeks post-op
    • - Without iMRI: 7.7% of patients had additional surgery less than two weeks post-op

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