P08INTRA-OPERATIVE MRI: THE ALDER HEY EXPERIENCE SO FAR

INTRODUCTION: Intra-operative MRI (ioMRI) is increasingly being used by some neurosurgical units to ensure maximal tumour resection and therefore improved outcome. Its use has also extended to other non-oncological neurosurgical procedures. METHOD: We report our ioMRI experience in Alder Hey over a period of 53 months and compare the results with a historical cohort prior to the introduction of ioMRI specifically looking at the group of patients where complete surgical tumour resection was the desired outcome. RESULTS: ioMRI was used in 183 cases since its introduction at Alder Hey. Of these, 143 were debulkings / resections of tumours, 6 biopsies, 1 cyst drainage, 25 epilepsy cases, 7 craniofacial and 1 abscess drainage. Approximately 30% of patients underwent second-look surgery following ioMRI. None have required return to theatre for resection of residual disease. This compares to 14% in the historical cohort prior to availability of ioMRI. There was no increase in morbidity - infection or otherwise - directly attributable to ioMRI. CONCLUSION: The use of ioMRI has proven to be safe and effective at ensuring that the goals of surgery are met and has allowed for an improved service by reducing return to theatre rates.