Rapid and Minimum Invasive Functional Brain Mapping by Real-Time Visualization of High Gamma Activity During Awake Craniotomy

2014 ◽  
Vol 82 (5) ◽  
pp. 912.e1-912.e10 ◽  
Author(s):  
Hiroshi Ogawa ◽  
Kyousuke Kamada ◽  
Christoph Kapeller ◽  
Satoru Hiroshima ◽  
Robert Prueckl ◽  
...  
Keyword(s):  
Real Time ◽  
Brain Mapping ◽  
Awake Craniotomy ◽  
Gamma Activity ◽  
Functional Brain ◽  
Functional Brain Mapping ◽  
High Gamma ◽  
Real Time Visualization

Real Time Intraoperative Functional Brain Mapping Based on RGB Imaging

IRBM ◽  
2020 ◽  
Author(s):  
C. Caredda ◽  
L. Mahieu-Williame ◽  
R. Sablong ◽  
M. Sdika ◽  
J. Guyotat ◽  
...  
Keyword(s):  
Real Time ◽  
Brain Mapping ◽  
Functional Brain ◽  
Functional Brain Mapping

scholarly journals Functional brain mapping optimization during awake craniotomy

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
A BOUADEL ◽  
M.Y OUDRHIRI ◽  
M El HASSANI ◽  
S KABBAJ ◽  
M JIDDANE ◽  
...  
Keyword(s):  
Brain Mapping ◽  
Awake Craniotomy ◽  
Functional Brain ◽  
Functional Brain Mapping

785 Real-Time Functional Brain Mapping as an Aid to Preoperative Planning in Pediatric Patients

Neurosurgery ◽  
2000 ◽  
Vol 47 (2) ◽  
pp. 524-524
Author(s):  
Alan T. Villavicencio ◽  
J. C. Leveque ◽  
Jeffrey R. Petrella ◽  
James Voyvodic ◽  
Timothy George ◽  
...  
Keyword(s):  
Real Time ◽  
Brain Mapping ◽  
Pediatric Patients ◽  
Preoperative Planning ◽  
Functional Brain ◽  
Functional Brain Mapping

scholarly journals Real time intraoperative functional brain mapping using a RGB camera

2019 ◽  
Author(s):  
Charly Caredda ◽  
Laurent Mahieu-Williame ◽  
Raphaël Sablong ◽  
Michaël Sdika ◽  
Jacques Guyotat ◽  
...  
Keyword(s):  
Real Time ◽  
Brain Mapping ◽  
Functional Brain ◽  
Functional Brain Mapping

Real-time functional brain mapping using electrocorticography

NeuroImage ◽  
2007 ◽  
Vol 37 (2) ◽  
pp. 504-507 ◽  
Author(s):  
Kai J. Miller ◽  
Marcel denNijs ◽  
Pradeep Shenoy ◽  
John W. Miller ◽  
Rajesh P.N. Rao ◽  
...  
Keyword(s):  
Real Time ◽  
Brain Mapping ◽  
Functional Brain ◽  
Functional Brain Mapping

scholarly journals Passive language mapping combining real-time oscillation analysis with cortico-cortical evoked potentials for awake craniotomy

2016 ◽  
Vol 125 (6) ◽  
pp. 1580-1588 ◽  
Author(s):  
Yukie Tamura ◽  
Hiroshi Ogawa ◽  
Christoph Kapeller ◽  
Robert Prueckl ◽  
Fumiya Takeuchi ◽  
...  
Keyword(s):  
Real Time ◽  
Frontal Lobe ◽  
Sensitivity And Specificity ◽  
Brain Mapping ◽  
Receptive Language ◽  
Functional Brain ◽  
Functional Brain Mapping ◽  
Oscillation Analysis ◽  
Patient Cooperation ◽  
Language Area

OBJECTIVE Electrocortical stimulation (ECS) is the gold standard for functional brain mapping; however, precise functional mapping is still difficult in patients with language deficits. High gamma activity (HGA) between 80 and 140 Hz on electrocorticography is assumed to reflect localized cortical processing, whereas the cortico-cortical evoked potential (CCEP) can reflect bidirectional responses evoked by monophasic pulse stimuli to the language cortices when there is no patient cooperation. The authors propose the use of “passive” mapping by combining HGA mapping and CCEP recording without active tasks during conscious resections of brain tumors. METHODS Five patients, each with an intraaxial tumor in their dominant hemisphere, underwent conscious resection of their lesion with passive mapping. The authors performed functional localization for the receptive language area, using real-time HGA mapping, by listening passively to linguistic sounds. Furthermore, single electrical pulses were delivered to the identified receptive temporal language area to detect CCEPs in the frontal lobe. All mapping results were validated by ECS, and the sensitivity and specificity were evaluated. RESULTS Linguistic HGA mapping quickly identified the language area in the temporal lobe. Electrical stimulation by linguistic HGA mapping to the identified temporal receptive language area evoked CCEPs on the frontal lobe. The combination of linguistic HGA and frontal CCEPs needed no patient cooperation or effort. In this small case series, the sensitivity and specificity were 93.8% and 89%, respectively. CONCLUSIONS The described technique allows for simple and quick functional brain mapping with higher sensitivity and specificity than ECS mapping. The authors believe that this could improve the reliability of functional brain mapping and facilitate rational and objective operations. Passive mapping also sheds light on the underlying physiological mechanisms of language in the human brain.

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