Morphometry: A study of the planum temporale

Jennifer J. Kulynych, Katalin Vladar, Douglas W. Jones, Daniel R. Weinberger

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: The emergence of methodologies for accurately rendering cortical surfaces suggests possible quantitative applications of surface rendering to morphometry of the cerebral cortex. We examined this novel use of surface renderings in a study of the planum temporale, a neuroanatomical structure exhibiting well-documented normal asymmetry previously visible only in postmortem studies. Materials and Methods: With the aid of three-dimensional renderings of the supratemporal cortex, the area of the planum temporale was analyzed in the volume MRIs of seven normal, strongly right-handed males. Results: In comparison with areas derived from conventional measurements of serial MRI sections, planum temporale areas derived from supratemporal surface renderings offered far greater interrater reliability, and presumably improved validity as reflected by more consistent evidence of the anticipated planum asymmetry. Conclusion: Morphometry of the supratemporal cortex is enhanced by the use of three-dimensional surface renderings. Application of surface-rendering techniques to morphometry of other cortical regions is discussed.

Original languageEnglish (US)
Pages (from-to)259-535
Number of pages277
JournalJournal of computer assisted tomography
Volume17
Issue number4
StatePublished - Jan 1 1993
Externally publishedYes

Keywords

  • Anatomy
  • Brain
  • Magnetic resonance imaging
  • Morphometry
  • Planum temporal
  • Techniques
  • Three-dimensional

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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