Open AccessOn‐ and offline Talairach registration for structural and functional MRI studies
Author(s) -
Desmond John E.,
Lim Kelvin O.
Publication year - 1997
Publication title -
human brain mapping
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.005
H-Index - 191
eISSN - 1097-0193
pISSN - 1065-9471
DOI - 10.1002/(sici)1097-0193(1997)5:1<58::aid-hbm6>3.0.co;2-m
Subject(s) - artificial intelligence , computer science , computer vision , hum , pattern recognition (psychology) , scanner , set (abstract data type) , functional magnetic resonance imaging , tilt (camera) , data set , neuroscience , psychology , mathematics , art , geometry , performance art , programming language , art history
We present a method for registering a brain in the Talairach coordinate system that can be performed either “online,” i.e., in real time while a subject is in a magnetic resonance scanner, or “offline” on a previously acquired three‐dimensional (3D) data set. The method is applicable to functional magnetic resonance imaging (MRI) studies because slices can be specified in Talairach coordinates and acquired in Talairach planes. Once functional data are obtained, pixels in a functional map can then be converted into Talairach coordinates, thereby facilitating brain averaging and communication of results. The method can also be used to align 3D data sets and perform volumetric analyses of regions of interest after correcting for head tilt, or to compute averaged structural brain images. Online and offline registration can be combined such that a series of sections can be interactively selected and visualized ahead of time using offline analyses and then replicated online at a later time. Hum. Brain Mapping 5:58–73, 1997. © 1997 Wiley‐Liss, Inc.