Potential Cardiac Amyloid PET/CT Imaging Targets for Differentiating Immunoglobulin Light Chain From Transthyretin Amyloidosis

Thomas Hellmut Schindler, Monica Sharma, Ines Valenta, Alessio Imperiale, Vasken Dilsizian

Research output: Contribution to journalReview articlepeer-review

Abstract

Purpose of the Review: Cardiac involvement in amyloidosis plays a critical role in the clinical manifestation and prognostication. Since advanced treatment options for immunoglobulin light chains (AL) or liver-generated protein transthyretin (TTR) are quite different, a non-invasive and comprehensive imaging approach for the identification and characterization of these forms of cardiac amyloidosis is warranted. Recent Findings: Various 18Flabeled radiotracers and positron emission tomography (PET) imaging have been appreciated as a as a valid and non-invasive diagnostic approach to identify and quantify disease activity of cardiac amyloidosis. Interestingly, applying 18F-florbetapen and delayed PET imaging may even afford the possibility to not only detect cardiac amyloidosis but also to reliably differentiate between AL and TTR, respectively. Summary: This review summarizes contributions of cardiac PET imaging for the non-invasive identification and potential differentiation between AL and TTR amyloidosis that likely holds promise to gear medical treatment in the individual patient for an improved outcome.

Original languageEnglish
Article number76
JournalCurrent Cardiology Reports
Volume23
Issue number7
DOIs
StatePublished - Jul 2021

Keywords

  • Amyloidosis
  • Cardiac involvement
  • F-labeled radiotracers
  • Immunoglobulin light chains
  • Positron emission tomography
  • Transthyretin

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