A simple genetic algorithm for tracing the deformed midline on a single slice of brain CT using quadratic Bézier curves

Chun Chih Liao, Furen Xiao, Jau Min Wong, I-Jen Chiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

Midline shift (MLS) is one of the most important quantitative features clinicians use to evaluate the severity of brain compression. It can be recognized by modeling brain deformation according to the estimated biomechanical properties of the brain structures. This paper proposes a novel method to identify the deformed midline by decomposing it into three segments: the upper and the lower straight segments representing parts of the tough meninges separating two brain hemispheres, and the central curved segment formed by a quadratic Bézier curve, representing the intervening soft brain tissue. The deformed midline is obtained by minimizing the summed square of the differences across all midline points, applying a genetic algorithm. Our algorithm was evaluated on images containing various pathologies from 81 consecutive patients treated in a single institute over one-year period. The deformed midlines were evaluated by human experts, and the values of midline shift were accurate in 95%.

Original languageEnglish
Title of host publicationProceedings - IEEE International Conference on Data Mining, ICDM
Pages463-467
Number of pages5
Publication statusPublished - 2006
Event6th IEEE International Conference on Data Mining - Workshops, ICDM 2006 - Hong Kong, China
Duration: Dec 18 2006Dec 18 2006

Other

Other6th IEEE International Conference on Data Mining - Workshops, ICDM 2006
CountryChina
CityHong Kong
Period12/18/0612/18/06

ASJC Scopus subject areas

  • Engineering(all)

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    Liao, C. C., Xiao, F., Wong, J. M., & Chiang, I-J. (2006). A simple genetic algorithm for tracing the deformed midline on a single slice of brain CT using quadratic Bézier curves. In Proceedings - IEEE International Conference on Data Mining, ICDM (pp. 463-467). [4063672]