[Cardiovascular magnetic resonance in myocardial infarction with non-obstructive coronary arteries]

E S Pershina1, D Y Shchekochikhin1,2,3, G M Shaginyan1

  • 1Pirogov First City Clinical Hospital.

Terapevticheskii Arkhiv
|October 26, 2022
PubMed

Insights

Cardiovascular magnetic resonance (CMR) effectively diagnoses myocardial infarction with nonobstructed coronary arteries (MINOCA), differentiating between ischemic and non-ischemic causes when clinical data is insufficient.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Diagnostic Performance

Context:

  • Myocardial infarction with nonobstructed coronary arteries (MINOCA) presents a diagnostic challenge.
  • Distinguishing between ischemic and non-ischemic etiologies of MINOCA is crucial for appropriate patient management.
  • Cardiovascular magnetic resonance (CMR) is increasingly utilized for cardiac assessment.

Purpose:

  • To evaluate the diagnostic performance of cardiovascular magnetic resonance (CMR) in patients presenting with myocardial infarction with nonobstructed coronary arteries (MINOCA).
  • To assess CMR's ability to differentiate between ischemic and non-ischemic causes of MINOCA.

Summary:

  • A study included 46 patients with MINOCA who underwent CMR (T2-weighted imaging, cine-CMR, late gadolinium enhancement [LGE]).
  • CMR identified myocardial infarction (MI) patterns in 30.4%, myocarditis in 26.1%, and hypertrophic cardiomyopathy in 13.1%.
  • CMR established the precise clinical diagnosis in 73.9% of cases, proving superior to clinical data alone for differentiating MINOCA causes.

Impact:

  • CMR provides a high diagnostic yield in MINOCA, guiding treatment decisions.
  • This study highlights CMR's critical role in diagnosing diverse cardiac conditions presenting as MINOCA.
  • Accurate diagnosis via CMR improves patient outcomes by enabling targeted therapies.
Abstract

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