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This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Holodny, A. I. Articles by Kalnin, A. J. Search for Related Content PubMed PubMed Citation Articles by Holodny, A. I. Articles by Kalnin, A. J. Hotlight (NEW!) What's Hotlight? American Journal of Neuroradiology 21:1415-1422 (8 2000) © 2000 American Society of Neuroradiology ARTICLE The Effect of Brain Tumors on BOLD Functional MR Imaging Activation in the Adjacent Motor Cortex: Implications for Image-guided Neurosurgery Andrei I. Holodny ,a , Michael Schulder a , Wen-Ching Liu a , Jonathan Wolko a , Joseph A. Maldjian a and Andrew J. Kalnin a a From the Departments of Radiology (A.I.H., W.C.L., A.J.K.) and Neurosurgery (M.S.), UMDNJ-New Jersey Medical School, Newark, NJ; UMDNJ-New Jersey Medical School, Newark, NJ (J.W.); and the Department of Radiology (J.A.M.), University of Pennsylvania, Philadelphia, Pennsylvania. BACKGROUND AND PURPOSE: Functional MR (fMR) imaging data coregistered to a neurosurgical navigation system have been proposed as guides for the resection of brain tumor in or adjacent to eloquent cortices. The purpose of this study was to compare data obtained from the side of the brain affected by tumor with the contralateral side and to determine if there are physiological limitations of fMR imaging in accurately determining the location of the primary motor cortex. METHODS: Ten patients with tumors in or directly adjacent to the motor cortex were studied with fMR imaging (finger-tapping paradigm). fMR imaging data were analyzed using multiple R values. These data were coregistered to a real-time intraoperative neurosurgical navigation system. RESULTS: Significant variability of motor cortex activation patterns was noted among individual patients. The activation volumes on the side of the tumor were significantly smaller compared with the contralateral side for all tumors not previously resected (0.66±0.47). This was most pronounced in glioblastomas (0.27±0.21). We propose that these differences were caused by a loss of autoregulation in the tumor vasculature of glioblastomas and venous effects. CONCLUSION: Notwithstanding the differences noted, the motor cortex was identified successfully in all patients. This was confirmed by intraoperative physiological identification of the motor cortex and a lack of postoperative neurologic deficit. This article has been cited by other articles: J.J. Pillai The Evolution of Clinical Functional Imaging during the Past 2 Decades and Its Current Impact on Neurosurgical Planning AJNR Am. J. 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Lehericy Role of the healthy hemisphere in recovery after resection of the supplementary motor area Neurology, April 27, 2004; 62(8): 1323 - 1332. Abstract Full Text PDF J. Sailor, M. E. Meyerand, C. H. Moritz, J. Fine, L. Nelson, B. Badie, and V. M. Haughton Supplementary Motor Area Activation in Patients with Frontal Lobe Tumors and Arteriovenous Malformations AJNR Am. J. Neuroradiol., October 1, 2003; 24(9): 1837 - 1842. Abstract Full Text PDF J. L. Ulmer, H. G. Krouwer, W. M. Mueller, M.S. Ugurel, M. Kocak, and L. P. Mark Pseudo-Reorganization of Language Cortical Function at fMR Imaging: A Consequence of Tumor-Induced Neurovascular Uncoupling AJNR Am. J. Neuroradiol., February 1, 2003; 24(2): 213 - 217. Abstract Full Text PDF I D Wilkinson, C A J Romanowski, D A Jellinek, J Morris, and P D Griffiths Motor functional MRI for pre-operative and intraoperative neurosurgical guidance Br. J. Radiol., February 1, 2003; 76(902): 98 - 103. 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American Journal of Neuroradiology – American Journal of Neuroradiology
Published: Sep 1, 2000
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