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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
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Multi-detector row CT coronary angiography in patients with cardiomyopathy -- initial single-centre experience

N E Manghat1, G J Morgan-Hughes, S R Shaw

  • 1Departments of Clinical Radiology, Derriford Hospital, Plymouth, Devon PL6 8DH, UK. docnatman@msn.com

Clinical Radiology
|June 9, 2007
PubMed

Insights

Computed tomography (CT) coronary angiography shows high accuracy in excluding significant coronary artery disease in patients with cardiomyopathy. While useful, suboptimal contrast opacification requires cautious interpretation of results.

Area of Science:

  • Cardiology
  • Radiology
  • Medical Imaging

Background:

  • Cardiomyopathy (CM) presents diagnostic challenges for coronary artery disease (CAD).
  • Accurate assessment of hemodynamically significant coronary stenoses is crucial in CM patients.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of computed tomography (CT) coronary angiography.
  • To assess CT's utility in identifying significant coronary artery stenoses in patients with cardiomyopathy.

Main Methods:

  • Eighteen patients with cardiomyopathy underwent CT coronary angiography.
  • Findings were compared with results from catheter angiography.

Main Results:

  • CT demonstrated 100% accuracy in whole-patient terms for assessing coronary artery stenosis.
  • Segment-by-segment analysis showed sensitivity of 66.7% and specificity of 96.5%.

Conclusions:

  • 16-detector row CT coronary angiography appears to be a valuable tool for ruling out significant CAD in CM patients.
  • Suboptimal contrast opacification necessitates careful interpretation of CT findings in this population.
Abstract

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