Article (Scientific journals)
Registration and real-time visualization of transcranial magnetic stimulation with 3-D MR images.
Noirhomme, Quentin; Ferrant, Matthieu; Vandermeeren, Yves et al.
2004In IEEE Transactions on Biomedical Engineering, 51 (11), p. 1994-2005
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Keywords :
Adolescent; Algorithms; Brain Mapping/methods; Deep Brain Stimulation/methods; Female; Hemiplegia/diagnosis/rehabilitation; Humans; Image Interpretation, Computer-Assisted/methods; Imaging, Three-Dimensional/methods; Magnetic Resonance Imaging/methods; Male; Online Systems; Subtraction Technique; Therapy, Computer-Assisted/methods; Transcranial Magnetic Stimulation/therapeutic use
Abstract :
[en] This paper describes a method for registering and visualizing in real-time the results of transcranial magnetic stimulations (TMS) in physical space on the corresponding anatomical locations in MR images of the brain. The method proceeds in three main steps. First, the patient scalp is digitized in physical space with a magnetic-field digitizer, following a specific digitization pattern. Second, a registration process minimizes the mean square distance between those points and a segmented scalp surface extracted from the magnetic resonance image. Following this registration, the physician can follow the change in coil position in real-time through the visualization interface and adjust the coil position to the desired anatomical location. Third, amplitude of motor evoked potentials can be projected onto the segmented brain in order to create functional brain maps. The registration has subpixel accuracy in a study with simulated data, while we obtain a point to surface root-mean-square error of 1.17+/-0.38 mm in a 24 subject study.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Noirhomme, Quentin ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Ferrant, Matthieu
Vandermeeren, Yves
Olivier, Etienne
Macq, Benoit
Cuisenaire, Olivier
Language :
English
Title :
Registration and real-time visualization of transcranial magnetic stimulation with 3-D MR images.
Publication date :
2004
Journal title :
IEEE Transactions on Biomedical Engineering
ISSN :
0018-9294
eISSN :
1558-2531
Publisher :
IEEE, New York, United States - New York
Volume :
51
Issue :
11
Pages :
1994-2005
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 October 2010

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