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Related Experiment Videos

Electron beam tomography and angiography: sex differences.

Matthew J Budoff1, Shalizeh Shokooh, Robert M Shavelle

  • 1Division of Cardiology, Saint John's Cardiovascular Research Center, Harbor-UCLA Medical Center Research and Education Institute, Torrance, CA 90502, USA. mbudoff@rei.edu

American Heart Journal
|June 1, 2002
PubMed
Summary

Electron beam tomography (EBT) shows high sensitivity and specificity for diagnosing coronary artery disease in women. This imaging technique can help evaluate symptomatic women with suspected coronary artery disease before angiography.

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Area of Science:

  • Cardiology
  • Radiology
  • Medical Imaging

Background:

  • Investigated the clinical utility of electron beam tomography (EBT) in a large cohort of symptomatic women.
  • Evaluated EBT's sensitivity and specificity for obstructive coronary artery disease (CAD).
  • Examined differences between premenopausal and postmenopausal women regarding EBT performance.

Purpose of the Study:

  • To determine the clinical value of electron beam tomography (EBT) in symptomatic women with suspected coronary artery disease (CAD).
  • To assess the diagnostic accuracy, specifically sensitivity and specificity, of EBT for obstructive CAD in women.
  • To compare EBT performance between premenopausal and postmenopausal women.

Main Methods:

  • Enrolled 1120 symptomatic patients (387 women, 733 men) who underwent both coronary angiography and EBT within three months.

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  • Utilized receiver operating characteristic (ROC) curves to correlate EBT calcium scores with angiographic findings of CAD.
  • Analyzed EBT calcium scores in relation to age to identify potential sex-based differences in disease manifestation.

    • Main Results:

    • EBT demonstrated high sensitivity (96%) for obstructive CAD in both men and women.
    • Women exhibited significantly higher specificity (57%) compared to men (46%) (P=.01).
    • The area under the ROC curve for predicting angiographic CAD using EBT calcium scores was 0.85 overall and 0.84 in women, with a 14.4-year age lag observed between sexes.

    Conclusions:

    • Electron beam tomography (EBT) holds significant clinical value for evaluating women with suspected coronary artery disease (CAD).
    • The high sensitivity and negative predictive value (96%) of EBT suggest its potential as a non-invasive tool to triage symptomatic women prior to coronary angiography.
    • EBT may facilitate a more efficient diagnostic pathway for women with suspected CAD.