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Cardiac computed tomography angiography results in diagnostic and therapeutic change in prosthetic heart valve

Jesse Habets1, Wilco Tanis, Lex A van Herwerden

  • 1Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.

The International Journal of Cardiovascular Imaging
|December 3, 2013
PubMed

Insights

Cardiac CT angiography (CTA) complements echocardiography for prosthetic heart valve endocarditis diagnosis. CTA improves detection of infections and aids treatment decisions, enhancing patient outcomes.

Area of Science:

  • Cardiology
  • Radiology
  • Infectious Diseases

Background:

  • Prosthetic heart valve endocarditis diagnosis can be challenging with standard echocardiography.
  • Novel imaging modalities are needed to improve diagnostic accuracy and patient outcomes.

Purpose of the Study:

  • To evaluate the complementary diagnostic value of cardiac computed tomography angiography (CTA).
  • To assess CTA's impact on patient treatment in suspected prosthetic heart valve endocarditis.

Main Methods:

  • Prospective cross-sectional diagnostic study.
  • Included clinical routine workup (transthoracic and transesophageal echocardiography) and cardiac CTA.
  • Reference standards included surgical findings, clinical follow-up, and expert panel consensus.

Main Results:

  • CTA led to major diagnostic changes in 21% of patients, notably detecting mycotic aneurysms.
  • Treatment plans were altered in 25% of patients based on CTA findings.
  • Combined CTA and echocardiography demonstrated superior diagnostic accuracy for prosthetic heart valve endocarditis, vegetations, and peri-annular extension compared to echocardiography alone.

Conclusions:

  • Cardiac CTA is a valuable complementary tool to echocardiography in diagnosing prosthetic heart valve endocarditis.
  • CTA should be considered in patients with high clinical suspicion for prosthetic heart valve endocarditis after initial echocardiographic evaluation.

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