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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

How can we diagnose coronary heart disease in hypertensive patients?

L M Prisant1, M J Frank, A A Carr

  • 1Department of Medicine, Medical College of Georgia, Augusta.

Hypertension (Dallas, Tex. : 1979)
|November 1, 1987
PubMed

Insights

Hypertension and coronary heart disease symptoms overlap. Routine exercise stress tests are unreliable for diagnosing obstructive coronary artery disease ischemia. Thallium-201 imaging shows promise but requires further study.

Area of Science:

  • Cardiology
  • Diagnostic Imaging
  • Hypertension Research

Background:

  • Chest pain is a frequent symptom in hypertensive patients.
  • Hypertension and coronary heart disease symptoms can be clinically indistinguishable.
  • Current noninvasive tests like exercise stress testing and stress radionuclide angiography lack reliability in predicting ischemia from obstructive epicardial coronary artery disease.

Purpose of the Study:

  • To evaluate the diagnostic utility of noninvasive imaging techniques for identifying ischemia in hypertensive patients with coronary heart disease.
  • To determine if thallium-201 myocardial perfusion imaging can serve as a valuable alternative to coronary arteriography.
  • To highlight the need for further research into promising noninvasive methods like positron emission tomography.

Main Methods:

  • Review of existing diagnostic approaches for chest pain in hypertensive patients.
  • Assessment of the predictive value of exercise stress testing and stress radionuclide angiography.
  • Consideration of thallium-201 myocardial perfusion imaging as a potential diagnostic tool.
  • Discussion of the need for prospective studies on noninvasive imaging modalities.

Main Results:

  • Routine exercise stress testing and stress radionuclide angiography are not reliable for diagnosing obstructive epicardial coronary artery disease and should be discontinued for this purpose.
  • Noninvasive thallium-201 myocardial perfusion imaging may offer a valuable alternative, potentially avoiding risks and costs associated with coronary arteriography.
  • Prospective studies rigorously evaluating thallium-201 imaging are currently lacking.

Conclusions:

  • Given the high prevalence of both hypertension and coronary heart disease, further data on noninvasive diagnostic methods are crucial.
  • Thallium-201 myocardial perfusion imaging shows potential but requires validation through well-designed prospective studies.
  • Emerging noninvasive techniques, particularly positron emission tomography, warrant investigation for their diagnostic capabilities in this patient population.

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