Related Experiment Video

Updated: Jun 10, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
06:29

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques

Published on: June 11, 2019

[Differentiation between vegetation and lead associated thrombus - role of PET scan in difficult diagnostic process]

Piotr Niewiński1, Ewa A Jankowska, Aldona Cwynar

  • 1Osrodek Chorob Serca, Wroclaw. pnsky@poczta.onet.pl

Kardiologia Polska
|July 22, 2010
PubMed

Insights

A pathological structure on a cardioverter-defibrillator lead in a hypertrophic cardiomyopathy patient was detected. Differentiating between device-related endocarditis and lead thrombus was challenging, with PET imaging showing potential utility.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Infectious Diseases

Background:

  • Hypertrophic cardiomyopathy (HCM) patients often require implantable cardioverter-defibrillators (ICDs) for arrhythmia management.
  • ICD leads can be associated with complications, including thrombus formation and infective endocarditis.
  • Accurate differentiation between these lead-associated pathologies is critical for appropriate patient management.

Observation:

  • A 59-year-old male with HCM presented with a newly detected pathological structure on his ICD lead.
  • Echocardiography revealed the structure, prompting a complex differential diagnostic process.
  • The primary challenge was distinguishing between cardiac device-related infective endocarditis and a lead-associated thrombus.

Findings:

  • The case highlights the diagnostic challenges in identifying ICD lead pathologies.
  • Positron Emission Tomography (PET) scanning was explored as an adjunctive imaging modality.
  • PET imaging demonstrated potential utility in characterizing the nature of the pathological structure.

Implications:

  • This case underscores the importance of comprehensive imaging in managing ICD lead complications.
  • PET scan may offer valuable insights for differentiating infective versus thrombotic etiologies of lead masses.
  • Improved diagnostic strategies can lead to more timely and effective interventions for patients with cardiac device-related issues.

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