Extraoperative Mapping by Means of Cortical Grid before Resection of Diffuse Oligodendroglioma in Dominant Hemisphere – an Alternative of “Awake Craniotomy” – a Case Report

Authors: R. Bartoš 1;  J. Ceé 1;  A. Zolal 1;  A. Hejčl 1;  M. Bolcha 1;  J. Prokšová 2;  M. Sameš 1
Authors‘ workplace: Neurochirurgická klinika UJEP a Krajská zdravotní, a. s. – Masarykova nemocnice v Ústí nad Labem, o. z. 1;  Rehabilitační oddělení – logopedie, Krajská zdravotní, a. s. – Masarykova nemocnice v Ústí nad Labem, o. z. 2
Published in: Cesk Slov Neurol N 2008; 71/104(6): 718-721
Category: Case Report


In a case report of the patient with diffuse oligodendroglioma WHO II we present the method of extraoperative mapping by means of temporarily implanted cortical grid as an alternative of “awake” surgery. We mention technical aspects of this cortical functions mapping mode and in the discussion we compare both methods.

Key words:
functional mapping – glioma – cortical grid – functional magnetic resonance – diffusion tensor imaging


1. Compostella A, Tosoni A, Blat V, Franceschi E, Brandes AA. Prognostic factors for anaplastic astrocytomas. J Neurooncol 2007; 81(3): 295–303.

2. McKnight TR, Lamborn KR, Love TD, Berger MS, Chang S, Dillon WP et al. Correlation of magnetic resonance spectroscopic and growth characteristics within Grades II and III gliomas. J Neurosurg 2007; 106(4): 660–666.

3. Taylor MD, Bernstein M. Awake craniotomy with brain mapping as the routine surgical approach to treating patients with supratentorial intraaxial tumors: a prospective trial of 200 cases. J Neurosurg 1999; 90(1): 35–41.

4. Whittle IR, Midgley S, Georges H, Pringle AM, Taylor R. Patients perceptions of “awake” brain tumour surgery. Acta Neurochir (Wien) 2005; 147(3): 275–277.

5. Bartoš R, Sameš M, Vachata P, Červenka M, Jech R, Vymazal J et al. Výsledky a tolerance „awake“ resekcí mozkových tumorů. Cesk Slov Neurol N 2005; 68/101(1): 39–45.

6. Ojemann G, Ojemann J, Lettich E, Berger M. Cortical language localization in left, dominant hemisphere. An electrical stimulation mapping investigation in 117 patients. J Neurosurg 1989; 71(3): 316–326.

7. Roux FE, Trémoulet M. Organization of language areas in bilingual patients: a cortical stimulation study. J Neurosurg 2002; 97(4): 857–864.

8. Kral T, Kurthen M, Schramm J, Urbach H, Meyer B. Stimulation mapping via implanted grid electrodes prior to surgery for gliomas in highly eloquent cortex. Neurosurgery 2006; 58 (1 Suppl): 36–43.

9. Cséfalvay Z, Košťálová M, Klimešová M. Diagnostika a terapie afázie, alexie, agrafie. Praha: AKL ČR 2002.

10. Benzagmout M, Gatignol P, Duffau H. Resection of World Health Organization Grade II gliomas involving Broca‘s area: methodological and functional considerations. Neurosurgery 2007; 61(4): 741–753.

11. Duffau H, Capelle L, Denvil D, Sichez J, Gatignol P, Taillandier L et al. Usefulness of intraoperative electrical subcortical mapping during surgery for low-grade gliomas located within eloquent brain regions: functional results in a consecutive series of 103 patients. J Neurosurg 2003; 98(4): 764–778.

12. Roux FE, Ibarrola D, Tremoulet M, Lazorthes Y, Henry P et al. Methodological and technical issues for integrating functional magnetic resonance imaging data in a neuronavigational system. Neurosurgery 2001; 49(5): 1145–1157.

13. Smits M, Vernooij MW, Wielopolski PA, Vincent AJ, Houston GC, van der Lugt A. Incorporating functional MR imaging into diffusion tensor tractography in the preoperative assessment of the corticospinal tract in patients with brain tumors. AJNR Am J Neuroradiol 2007; 28(7): 1354–1361.

14. Meyer B. Osobní komunikace. Bonn 2006.

Paediatric neurology Neurosurgery Neurology

Article was published in

Czech and Slovak Neurology and Neurosurgery

Issue 6

2008 Issue 6

Most read in this issue

This topic is also in:

Forgotten password

Don‘t have an account?  Create new account

Forgotten password

Enter the email address that you registered with. We will send you instructions on how to set a new password.


Don‘t have an account?  Create new account