• Title, Summary, Keyword: Talairach space

Search Result 2, Processing Time 0.022 seconds

A Novel Automatic Algorithm for Selecting a Target Brain using a Simple Structure Analysis in Talairach Coordinate System

  • Koo B.B.;Lee Jong-Min;Kim June Sic;Kim In Young;Kim Sun I.
    • Journal of Biomedical Engineering Research
    • /
    • v.26 no.3
    • /
    • pp.129-132
    • /
    • 2005
  • It is one of the most important issues to determine a target brain image that gives a common coordinate system for a constructing population-based brain atlas. The purpose of this study is to provide a simple and reliable procedure that determines the target brain image among the group based on the inherent structural information of three-dimensional magnetic resonance (MR) images. It uses only 11 lines defined automatically as a feature vector representing structural variations based on the Talairach coordinate system. Average characteristic vector of the group and the difference vectors of each one from the average vector were obtained. Finally, the individual data that had the minimum difference vector was determined as the target. We determined the target brain image by both our algorithm and conventional visual inspection for 20 healthy young volunteers. Eighteen fiducial points were marked independently for each data to evaluate the similarity. Target brain image obtained by our algorithm showed the best result, and the visual inspection determined the second one. We concluded that our method could be used to determine an appropriate target brain image in constructing brain atlases such as disease-specific ones.

Quantification of human brain image in Talairach space (비선형변환을 이용한 뇌영상의 정량적 분석)

  • Song, M.J.;Paik, C.H.;Kim, W.K.
    • Proceedings of the KOSOMBE Conference
    • /
    • v.1997 no.11
    • /
    • pp.537-540
    • /
    • 1997
  • The quantitative comparison of brain architecture across different subjects requires a common coordinate system, with respect to which the spatial variability of features form different individuals can be expressed. We have developed and implemented an image warping technique which is based on an elastic body deformation. The resulting 2D deformation map can be used to quantify anatomic differences between subjects. The technique's accuracy is tested, by warping 2D magnetic resonance images of age seventies into Talairach atlas.

  • PDF