Abstract #1704
High Resolution MRI of the Sellar Structures via Transsphenoidal Placement of a Dedicated Interventional Pituitary Coil: Development and Cadaveric Testing.
Prashant Chittiboina 1 , Lalith Talagala 2 , Hellmut Merkle 3 , Joelle E Sarrls 4 , Blake K Montgomery 1 , Russell R Lonser 5 , Edward H Oldfield 6 , Alan P Koretsky 3 , and John A Butman 7
1
Surgical Neurology Branch/ NINDS, National
Institutes of Health, Bethesda, Maryland, United States,
2
NIH
MRI Research FAcility/ NINDS, National Institutes of
Health, Bethesda, Maryland, United States,
3
Laboratory
of Functional & Molecular Imaging/ NINDS, National
Institutes of Health, Bethesda, Maryland, United States,
4
NIH
MRI Research Facility/ NINDS, National Institutes of
Health, Bethesda, Maryland, United States,
5
Department
of Neurological Surgery, The Ohio State University,
Columbus, Ohio, United States,
6
Department
of Neurosurgery, University of Virginia,
Charlottesville, Virginia, United States,
7
Radiology
and Imaging Sciences/ Clinical Center, National
Institutes of Health, Bethesda, Maryland, United States
MRI detects pituitary microadneomas in 50% of cases.
Transsphenoidal surgery allows placement of an MRI
receiver coil within the sphenoid, dramatically
improving SNR. A 12 mm diameter 1.5 T interventional
pituitary surface coil (IPSC) was prototyped. The IPSC
was positioned using the transsphenoidal approach in two
cadaveric heads. The SNR gain with the IPSC was 5-10
fold compared to the 8-channel head coil. Structures
visible using IPSC included the pituitary capsule,
intercavernous sinus, and medial wall of the cavernous
sinus. This novel coil may become an important
intraoperative tool for transsphenoidal surgery.
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