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

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

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

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

Persistent mirror movements: functional MR imaging of the hand motor cortex.

Radiology ◽  
1997 ◽  
Vol 203 (2) ◽  
pp. 545-552 ◽  
Author(s):  
G L Leinsinger ◽  
D T Heiss ◽  
A G Jassoy ◽  
T Pfluger ◽  
K Hahn ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Mr Imaging ◽  
Mirror Movements ◽  
Functional Mr Imaging

Activation of the motor cortex in patients with mirror movements evaluated with functional MR imaging

NeuroImage ◽  
1996 ◽  
Vol 3 (3) ◽  
pp. S395
Author(s):  
G.L. Leinsinger ◽  
D. Heiss ◽  
R. Toms ◽  
A. Danek ◽  
K. Hahn
Keyword(s):  
Motor Cortex ◽  
Mr Imaging ◽  
Mirror Movements ◽  
Functional Mr Imaging

Sensory motor cortex: correlation of presurgical mapping with functional MR imaging and invasive cortical mapping.

Radiology ◽  
1994 ◽  
Vol 190 (1) ◽  
pp. 85-92 ◽  
Author(s):  
C R Jack ◽  
R M Thompson ◽  
R K Butts ◽  
F W Sharbrough ◽  
P J Kelly ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Mr Imaging ◽  
Cortical Mapping ◽  
Sensory Motor ◽  
Functional Mr Imaging ◽  
Presurgical Mapping

Functional Mr Imaging at 1.5 T

1993 ◽  
Vol 34 (1) ◽  
pp. 101-103 ◽  
Author(s):  
O. Henriksen ◽  
H. B. W. Larsson ◽  
P. Ring ◽  
E. Rostrup ◽  
A. Stensgaard ◽  
...  
Keyword(s):  
Blood Flow ◽  
Motor Cortex ◽  
Mr Imaging ◽  
Preliminary Investigation ◽  
Capillary Blood ◽  
Detectable Change ◽  
Gradient Echo ◽  
Functional Mr Imaging ◽  
Echo Time ◽  
Stimulation Of

A preliminary investigation of the effects of stimulation of the visual and the motor cortex was made on a conventional 1.5 T MR imaging scanner. Both types of activation gave a detectable change in the signal between rest and stimulation using a gradient echo sequence with an echo time of 60 ms. The observed effects were assumed to be caused by variation in the amount of paramagnetic deoxyhemoglobin between stimulation and rest due to local increase of capillary blood flow in the human brain during stimulation.

Activation of the motor cortex in schizophrenics investigated by functional MR imaging

NeuroImage ◽  
1996 ◽  
Vol 3 (3) ◽  
pp. S497 ◽  
Author(s):  
T. Mager ◽  
F.A. Weilke ◽  
G.L. Leinsinger ◽  
C. Dudel ◽  
D. Heiss ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Mr Imaging ◽  
Functional Mr Imaging
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