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Related Experiment Videos

CT evaluation of normal interatrial fat thickness

L S Broderick1, D J Conces, R D Tarver

  • 1Department of Radiology, Indiana University Medical Center, University Hospital, Indianapolis 46202-5253, USA.

Journal of Computer Assisted Tomography
|November 1, 1996
PubMed
Summary

The normal thickness of interatrial fat, measured using computed tomography (CT), ranges from 0-9.6 mm anterior and 0-9.9 mm posterior to the fossa ovalis. This finding provides crucial reference values for cardiac imaging analysis.

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Area of Science:

  • Cardiovascular Imaging
  • Anatomical Studies
  • Radiology

Background:

  • The interatrial septum is a critical cardiac structure.
  • Accurate measurement of its fat thickness is important for diagnostic interpretation.

Purpose of the Study:

  • To establish the normal range of interatrial septum fat thickness.
  • To utilize computed tomography (CT) for precise anatomical measurements.

Main Methods:

  • Eighty-seven subjects underwent helical chest CT scans.
  • Interatrial fat thickness was measured anterior and posterior to the fossa ovalis.
  • Mean and standard deviation were calculated for thickness measurements.

Main Results:

  • The mean thickness of interatrial fat was 4.6 mm (SD = 2.5) anterior to the fossa ovalis.

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  • The mean thickness was 3.7 mm (SD = 3.1) posterior to the fossa ovalis.

    • Conclusions:

    • The normal range of interatrial fat thickness is 0-9.6 mm anteriorly and 0-9.9 mm posteriorly.
    • These measurements provide a normative reference for CT-based cardiac assessments.
    • Understanding normal fat distribution aids in identifying potential pathological changes.