Mp. Fried et al., ENDOSCOPIC SINUS SURGERY WITH MAGNETIC-RESONANCE-IMAGING GUIDANCE - INITIAL PATIENT EXPERIENCE, Otolaryngology and head and neck surgery, 119(4), 1998, pp. 374-380
We report the first endoscopic surgeries performed with patients under
general anesthesia using intraoperative guidance with MRI, The proced
ures were experimental and intended to test (1) the unusual working en
vironment of a unique new ''open-configuration'' MRI unit for head and
neck surgery, and (2) real-time image guidance. Twelve patients under
went endoscopic sinus surgery while under general anesthesia in a new
open MRI unit that provides the surgeon with access to the patient whi
le imaging is performed. Eleven patients had chronic sinusitis (eight
of them had bilateral disease), and one had a right nasoethmoid and an
tral tumor. All 12 surgeries were performed without complications. Bot
h the endoscopic view and the MRI scans were available at the surgical
field. The image plane was surgeon controlled, and the MRI updated im
ages in as little as 14 seconds. MRI provided adequate visualization o
f both the disease and the related anatomy and allowed the surgeon to
navigate during the procedure. The intraoperative data reflect the tis
sue changes during surgery and provide optimum feedback for surgical g
uidance. Although the operating environment poses some limitations, it
has become apparent that intraoperative MRI has a role in the treatme
nt of head and neck disorders and warrants further study.