18F-FDG/13N-ammonia cardiac PET findings in ATTR cardiac amyloidosis

J Nucl Cardiol. 2023 Apr;30(2):726-735. doi: 10.1007/s12350-021-02886-2. Epub 2022 Jan 27.

Abstract

18F-flurodeoxyglycose (FDG)/13N-ammonia positron emission tomography/computed tomography (PET/CT) is frequently utilized to evaluate cardiac sarcoidosis (CS) but findings can reflect other forms of myocardial inflammation or altered myocardial metabolic activity. Herein, we present five cases where cardiac PET findings suggested CS, but right ventricular endomyocardial biopsy samples revealed ATTR-type cardiac amyloidosis.

Keywords: 18F-flurodeoxyglycose PET; ATTR cardiac amyloidosis; Inflammation.

MeSH terms

  • Ammonia
  • Amyloidosis*
  • Cardiomyopathies*
  • Fluorodeoxyglucose F18
  • Humans
  • Myocarditis*
  • Positron Emission Tomography Computed Tomography
  • Positron-Emission Tomography / methods
  • Radiopharmaceuticals
  • Sarcoidosis*

Substances

  • Fluorodeoxyglucose F18
  • Ammonia
  • Radiopharmaceuticals