Apport de la résonance magnétique per-opératoire à bas champs dans la chirurgie de l'adénome hypophysaire [Transsphenoidal approach with low field MRI for pituitary adenoma].
Details
Serval ID
serval:BIB_DCED3E93B288
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Apport de la résonance magnétique per-opératoire à bas champs dans la chirurgie de l'adénome hypophysaire [Transsphenoidal approach with low field MRI for pituitary adenoma].
Journal
Neuro-Chirurgie
ISSN
0028-3770 (Print)
ISSN-L
0028-3770
Publication state
Published
Issued date
2005
Peer-reviewed
Oui
Volume
51
Number
6
Pages
577-583
Language
french
Notes
Publication types: Clinical Trial ; English Abstract ; Journal Article
Publication Status: ppublish
Publication Status: ppublish
Abstract
INTRODUCTION: Appropriate evaluation of resection remains one of the major difficulties of surgical treatment of pituitary adenoma. The transsphenoidal approach does not allow direct visual control. Endoscopy provides useful information but may no distinguish well residual adenoma from the pituitary gland. Intraoperative MRI offers new perspectives for assessing the quality of resection. We report our experience with low field intraoperative MRI in surgical treatment of pituitary adenoma.
POPULATION: Intraoperative MRI (Polestar N10, 30 patients and Polestar N20, 17 patients) was performed in 45 consecutive patients undergoing surgery for pituitary adenoma. Thirty-seven patients had a macroadenoma. Patients were in the prone position with the head fixed with a three-pin MRI-compatible headholder.
METHOD: Coronal T1 MRI scans with enhancement were acquired pre and per operatively. We compared scans and surgical filling (complete removal). If there was a difference, a surgical control was undertaken.
RESULTS: Intraoperative images were unavailable for two patients due to small size of the neck and the pituitary glands which were not in the middle in the field of view. For the others, the pituitary glands were in the field of view and the intraoperative scans could be used for comparison. For four patients, there was a discrepancy between surgeon filling and the intraoperative MRI. A control showed no residual adenoma but hemostatic tissue.
CONCLUSION: Low field intraoperative MRI is an excellent technique for controlling the size of pituitary adenoma resection.
POPULATION: Intraoperative MRI (Polestar N10, 30 patients and Polestar N20, 17 patients) was performed in 45 consecutive patients undergoing surgery for pituitary adenoma. Thirty-seven patients had a macroadenoma. Patients were in the prone position with the head fixed with a three-pin MRI-compatible headholder.
METHOD: Coronal T1 MRI scans with enhancement were acquired pre and per operatively. We compared scans and surgical filling (complete removal). If there was a difference, a surgical control was undertaken.
RESULTS: Intraoperative images were unavailable for two patients due to small size of the neck and the pituitary glands which were not in the middle in the field of view. For the others, the pituitary glands were in the field of view and the intraoperative scans could be used for comparison. For four patients, there was a discrepancy between surgeon filling and the intraoperative MRI. A control showed no residual adenoma but hemostatic tissue.
CONCLUSION: Low field intraoperative MRI is an excellent technique for controlling the size of pituitary adenoma resection.
Keywords
Adenoma/diagnosis, Adenoma/pathology, Female, Humans, Intraoperative Period, Magnetic Resonance Imaging, Male, Middle Aged, Neurosurgical Procedures/methods, Pituitary Neoplasms/diagnosis, Pituitary Neoplasms/pathology, Sphenoid Bone/surgery
Pubmed
Web of science
Create date
20/01/2008 17:35
Last modification date
20/08/2019 16:01