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[Noninvasive coronary angiography using multidetector computed tomography in patients with suspected coronary artery

Antonio J Barros1, Marco A Blázquez, Rubén Leta

  • 1Unidad de Imagen Cardiaca, Servicio de Cardiología, Hospital de la Santa Creu i Sant Pau, Barcelona, España. abarros@santpau.cat

Medicina Clinica
|March 13, 2009
PubMed

Insights

Multidetector computed tomography (MDCT) effectively diagnoses coronary artery disease (CAD) in patients with unclear exercise test results. MDCT findings correlate with future cardiovascular events, aiding risk stratification.

Area of Science:

  • Cardiology
  • Radiology
  • Diagnostic Imaging

Background:

  • Clinical suspicion of coronary artery disease (CAD) often presents with non-diagnostic exercise treadmill test results.
  • Noninvasive coronary angiography using multidetector computed tomography (MDCT) offers an alternative diagnostic pathway.

Purpose of the Study:

  • To determine the diagnostic and prognostic value of MDCT in patients with suspected CAD and indeterminate exercise stress tests.
  • To assess the relationship between MDCT findings and subsequent cardiovascular events.

Main Methods:

  • Retrospective analysis of 33 patients with suspected CAD and non-diagnostic exercise treadmill tests.
  • Evaluation of MDCT for coronary artery stenosis, revascularization, myocardial infarction, angina, and death incidence.

Main Results:

  • Coronary artery lesions were identified in 7 (21%) obstructive and 18 (55%) non-obstructive cases.
  • Cardiovascular events occurred in 15% of patients, including revascularization for obstructive stenosis and cardiovascular death for non-obstructive lesions.
  • No events were observed in patients with no coronary lesions or non-evaluable MDCT scans.

Conclusions:

  • MDCT reveals a high prevalence of CAD in patients with suspected disease and non-diagnostic exercise tests.
  • The degree of coronary stenosis on MDCT is linked to the incidence of cardiovascular events during follow-up.
Abstract

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