scholarly journals Functional MR Imaging of the Primary Motor Area in Patients with Brain Tumors of the Motor Cortex : Evaluation with Echo-planer Imaging on a Clinical 1.0 T MR Imager

1998 ◽  
Vol 7 (4) ◽  
pp. 222-229 ◽  
Author(s):  
Yoshie Hara ◽  
Mitsugu Nakamura ◽  
Norihiko Tamaki ◽  
Kazumasa Ehara ◽  
Junji Kitamura
Keyword(s):  
Motor Cortex ◽  
Brain Tumors ◽  
Mr Imaging ◽  
Motor Area ◽  
Primary Motor Area ◽  
Functional Mr Imaging

Functional MR Imaging of the Motor Cortex in Active and Passive Movement: Qualitative and Quantitative Changes

2002 ◽  
Vol 46 (5) ◽  
pp. 425
Author(s):  
Ki Bong Yu ◽  
Myung Kwan Lim ◽  
Hyung Jin Kim ◽  
Jun Soo Byun ◽  
Young Kook Cho ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Mr Imaging ◽  
Passive Movement ◽  
Qualitative And Quantitative ◽  
Functional Mr Imaging ◽  
Quantitative Changes

scholarly journals Accuracy of Presurgical Functional MR Imaging for Language Mapping of Brain Tumors: A Systematic Review and Meta-Analysis

Radiology ◽  
2018 ◽  
Vol 286 (2) ◽  
pp. 512-523 ◽  
Author(s):  
Hsu-Huei Weng ◽  
Kyle R. Noll ◽  
Jason M. Johnson ◽  
Sujit S. Prabhu ◽  
Yuan-Hsiung Tsai ◽  
...  
Keyword(s):  
Systematic Review ◽  
Brain Tumors ◽  
Mr Imaging ◽  
Meta Analysis ◽  
Language Mapping ◽  
Functional Mr Imaging

Localizing and Lateralizing Language in Patients with Brain Tumors: Feasibility of Routine Preoperative Functional MR Imaging in 81 Consecutive Patients1

Radiology ◽  
2007 ◽  
Vol 243 (3) ◽  
pp. 828-836 ◽  
Author(s):  
Christoph Stippich ◽  
Nora Rapps ◽  
Jens Dreyhaupt ◽  
Anita Durst ◽  
Bodo Kress ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Mr Imaging ◽  
Functional Mr Imaging

P18-24 Preoperative functional MR imaging in patiens with brain tumors and epilepsy

2010 ◽  
Vol 121 ◽  
pp. S214
Author(s):  
P. Bednarik ◽  
R. Marecek ◽  
M. Mikl ◽  
T. Svoboda ◽  
M. Kostalova ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Mr Imaging ◽  
Functional Mr Imaging

Delayed feedback of somato-motor cortex activations modulates finger tapping results in real-time functional MR imaging

2007 ◽  
Vol 118 (4) ◽  
pp. e33
Author(s):  
J. Gawehn ◽  
G. Vucurevic ◽  
P. Dellani ◽  
P. Urban ◽  
P. Stoeter
Keyword(s):  
Motor Cortex ◽  
Mr Imaging ◽  
Real Time ◽  
Delayed Feedback ◽  
Finger Tapping ◽  
Functional Mr Imaging

Intraoperative validation of functional magnetic resonance imaging and cortical reorganization patterns in patients with brain tumors involving the primary motor cortex

1999 ◽  
Vol 91 (2) ◽  
pp. 238-250 ◽  
Author(s):  
Javier Fandino ◽  
Spyros S. Kollias ◽  
Heinz G. Wieser ◽  
Anton Valavanis ◽  
Yasuhiro Yonekawa
Keyword(s):  
Motor Cortex ◽  
Motor Function ◽  
Primary Motor Cortex ◽  
Objective Evaluation ◽  
Cortical Stimulation ◽  
Cortical Reorganization ◽  
Motor Area ◽  
Primary Motor Area ◽  
Content Type ◽  
Fine Print

Object. The purpose of the present study was to compare the results of functional magnetic resonance (fMR) imaging with those of intraoperative cortical stimulation in patients who harbored tumors close to or involving the primary motor area and to assess the usefulness of fMR imaging in the objective evaluation of motor function as part of the surgical strategy in the treatment of these patients.Methods. A total of 11 consecutive patients, whose tumors were close to or involving the central region, underwent presurgical blood oxygen level—dependent fMR imaging while performing a motor paradigm that required them to clench and spread their hands contra- and ipsilateral to the tumor. Statistical cross-correlation functional maps covering the primary and secondary motor cortical areas were generated and overlaid onto high-resolution anatomical MR images. Intraoperative electrical cortical stimulation was performed to validate the presurgical fMR imaging findings. In nine (82%) of 11 patients, the anatomical fMR imaging localization of motor areas could be verified by intraoperative electrical cortical stimulation. In seven patients two or more activation sites were demonstrated on fMR imaging, which were considered a consequence of reorganization phenomena of the motor cortex: contralateral primary motor area (nine patients), contralateral premotor area (four patients), ipsilateral primary motor area (two patients), and ipsilateral premotor area (four patients).Conclusions. Functional MR imaging can be used to perform objective evaluation of motor function and surgical planning in patients who harbor lesions near or involving the primary motor cortex. Correlation between fMR imaging findings and the results of direct electrical brain stimulation is high, although not 100%. Based on their study, the authors believe that cortical reorganization patterns of motor areas might explain the differences in motor function and the diversity of postoperative motor function among patients with central tumors.

Functional magnetic resonance imaging of sensory and motor cortex: comparison with electrophysiological localization

1995 ◽  
Vol 83 (2) ◽  
pp. 262-270 ◽  
Author(s):  
Aina Puce ◽  
R. Todd Constable ◽  
Marie L. Luby ◽  
Gregory McCarthy ◽  
Anna C. Nobre ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Magnetic Resonance ◽  
Motor Cortex ◽  
Mr Imaging ◽  
Sensorimotor Cortex ◽  
Functional Magnetic Resonance ◽  
Planar Imaging ◽  
Content Type ◽  
Functional Mr Imaging ◽  
Fine Print

✓ Functional magnetic resonance (MR) imaging was performed using a 1.5-tesla MR system to localize sensorimotor cortex. Six neurologically normal subjects were studied by means of axial gradient-echo images with a motor task and one or more sensory tasks: 1) electrical stimulation of the median nerve; 2) continuous brushing over the thenar region; and 3) pulsed flow of compressed air over the palm and digits. An increased MR signal was observed in or near the central sulcus, consistent with the location of primary sensory and motor cortex. Four patients were studied using echo planar imaging sequences and motor and sensory tasks. Three patients had focal refractory seizures secondary to a lesion impinging on sensorimotor cortex. Activation seen on functional MR imaging was coextensive with the location of the sensorimotor area determined by evoked potentials and electrical stimulation. Functional MR imaging provides a useful noninvasive method of localization and functional assessment of sensorimotor cortex.

Delayed feedback of somato-motor cortex activations modulates finger tapping results in real-time functional MR Imaging

2006 ◽  
Vol 37 (01) ◽  
Author(s):  
J Gawehn ◽  
G Vucurevic ◽  
P Dellani ◽  
P Urban ◽  
P Stoeter
Keyword(s):  
Motor Cortex ◽  
Mr Imaging ◽  
Real Time ◽  
Delayed Feedback ◽  
Finger Tapping ◽  
Functional Mr Imaging
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