title: Clinical and economic outcomes of low-field intraoperative MRI-guided tumor resection neurosurgery.
abstract: OBJECTIVE
  To compare low-field (0.15 T) intraoperative magnetic resonance imaging (iMRI)-guided tumor resection with both conventional magnetic resonance imaging (cMRI)-guided tumor resection and high-field (1.5 T) iMRI-guided resection from the clinical and economic point of view.
  
  
  METHODS
  We retrospectively compared 65 iMRI patients with 65 cMRI patients in terms of hospital length of stay, repeat resection rate, repeat resection interval, complication rate, cost to the patient, cost to the hospital, and cost effectiveness. In addition, we compared our low-field results with previously published high-field results.
  
  
  RESULTS
  The complication rate was lower for iMRI vs. cMRI in patients presenting for their initial tumor resection (45 vs. 57 complications, P = 0.048). The iMRI repeat resection interval was longer for this cohort (20.1 vs. 6.7 months, P = 0.020). iMRI was more cost-effective than cMRI for patients who had repeat resections ($10,690/RFY vs. $76,874/RFY, P < 0.001). We found no other clinical or economic differences between iMRI- and cMRI-guided tumor resection surgeries. Overall, we did not find the advantages to low-field iMRI that have been reported for high-field iMRI.
  
  
  CONCLUSIONS
  There is no adequate justification for the widespread installation of low-field iMRI in its current development state.
authors: College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA.
authors: Mina
authors: M
authors: Makary
authors: E Antonio
authors: EA
authors: Chiocca
authors: Natali
authors: N
authors: Erminy
authors: María
authors: M
authors: Antor
authors: Sergio D
authors: SD
authors: Bergese
authors: Mahmoud
authors: M
authors: Abdel-Rasoul
authors: Soledad
authors: S
authors: Fernandez
authors: Roger
authors: R
authors: Dzwonczyk
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000473:pathology / Q000601:surgery*; D015331:Cohort Studies; D003362:Cost-Benefit Analysis; D003399:Craniotomy / Q000379:methods; D005260:Female; D006801:Humans; D007902:Length of Stay; D008279:Magnetic Resonance Imaging / Q000191:economics* / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009493:Neurosurgery / Q000191:economics* / Q000379:methods*; D012189:Retrospective Studies; D016896:Treatment Outcome