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<p> <?tk 2?>We present a case of a patient with symptomatic heart failure and chronic kidney disease in which severe mitral valve calcification prevented accurate assessment of aortic stenosis (AS) severity using conventional guideline-directed imaging modalities. We used a novel technique of low dose dobutamine stress cardiovascular magnetic resonance (LD-dCMR) imaging to elucidate and confirm severe AS, allowing the patient to subsequently proceed to have a successful transcatheter aortic valve implantation. To our knowledge, this is the first reported case in the literature base of LD-dCMR confirming severe AS in left ventricular systolic dysfunction where conventional imaging modalities were limited by dystrophic cardiac calcification.<?tk 0?></p>

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Low-dose dobutamine stress cardiovascular magnetic resonance imaging to assess aortic stenosis severity in left ventricular systolic dysfunction and severe mitral annular calcification

  • 期刊论文

  • 发表日期：

    2025年3月24日

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  • Clement Lau,
  • Nomathemba Nyathi,
  • Brian Jere,
  • Jamal Nasir Khan

摘要

We present a case of a patient with symptomatic heart failure and chronic kidney disease in which severe mitral valve calcification prevented accurate assessment of aortic stenosis (AS) severity using conventional guideline-directed imaging modalities. We used a novel technique of low dose dobutamine stress cardiovascular magnetic resonance (LD-dCMR) imaging to elucidate and confirm severe AS, allowing the patient to subsequently proceed to have a successful transcatheter aortic valve implantation. To our knowledge, this is the first reported case in the literature base of LD-dCMR confirming severe AS in left ventricular systolic dysfunction where conventional imaging modalities were limited by dystrophic cardiac calcification.