PURPOSE: Identification of the precentral gyrus can be difficult in patients with brain tumors. The purpose of the current study was to evaluate the clinical usefulness of functional MRI (fMRI) in identifying motor cortex and speech areas as a part of preoperative neurosurgical planning. METHOD: fMRI was performed using a 1.5 T MR unit in 41 patients with brain tumors. The motor paradigm was finger tapping and foot movement, whereas the language paradigm consisted of a two word semantic test. Statistical analysis of the data was done using the Kolmogorow-Smirnow test. Plots of signal intensities over time were created. RESULTS: The precentral gyrus was identified in 38 of 41 patients. In two patients, fMRI was not of acceptable quality due to motion artifacts. Speech areas were localized in 33 patients. In a typical clinical setting, the value of the method was graded "high." CONCLUSION: fMRI's efficacy in the preoperative localization of language and motor areas is high. The method should become a routine adjunct for preoperative evaluation of brain tumors in the near future.
PURPOSE: Identification of the precentral gyrus can be difficult in patients with brain tumors. The purpose of the current study was to evaluate the clinical usefulness of functional MRI (fMRI) in identifying motor cortex and speech areas as a part of preoperative neurosurgical planning. METHOD: fMRI was performed using a 1.5 T MR unit in 41 patients with brain tumors. The motor paradigm was finger tapping and foot movement, whereas the language paradigm consisted of a two word semantic test. Statistical analysis of the data was done using the Kolmogorow-Smirnow test. Plots of signal intensities over time were created. RESULTS: The precentral gyrus was identified in 38 of 41 patients. In two patients, fMRI was not of acceptable quality due to motion artifacts. Speech areas were localized in 33 patients. In a typical clinical setting, the value of the method was graded "high." CONCLUSION: fMRI's efficacy in the preoperative localization of language and motor areas is high. The method should become a routine adjunct for preoperative evaluation of brain tumors in the near future.
Authors: G Fesl; M Demmel; J Albrecht; R Kopietz; V Schoepf; A M Kleemann; O Pollatos; A Anzinger; T Schreder; H Brueckmann; M Wiesmann Journal: Clin Neuroradiol Date: 2010-08-05 Impact factor: 3.649
Authors: S González-Ortiz; L Oleaga; T Pujol; S Medrano; J Rumiá; L Caral; T Boget; J Capellades; N Bargalló Journal: AJNR Am J Neuroradiol Date: 2013-01-10 Impact factor: 3.825
Authors: Benoit Pirotte; Carine Neugroschl; Thierry Metens; David Wikler; Vincent Denolin; Philippe Voordecker; Alfred Joffroy; Nicolas Massager; Jacques Brotchi; Marc Levivier; Danielle Baleriaux Journal: AJNR Am J Neuroradiol Date: 2005-10 Impact factor: 3.825
Authors: Ioannis Z Kapsalakis; Eftychia Z Kapsalaki; Efstathios D Gotsis; Dimitrios Verganelakis; Panagiotis Toulas; Georgios Hadjigeorgiou; Indug Chung; Ioannis Fezoulidis; Alexandros Papadimitriou; Joe Sam Robinson; Gregory P Lee; Kostas N Fountas Journal: Radiol Res Pract Date: 2012-07-12