This prospective imaging study investigates the diagnostic ability of Gallium-68 DOTA-TOC (68Ga-DOTA-TOC) positron emission tomography/computed tomography (PET/CT) in the clinical work-up of patients with 1) clinically suspected acute myocarditis (n=30-40) and 2) clinically suspected cardiac sarcoidosis (n=30-40) using clinical diagnostic criteria as well as endomyocardial biopsy as reference. Furthermore, 68Ga-DOTA-TOC PET/CT findings will be compared with results from contrast-enhanced magnetic resonance imaging (MRI) and in case of cardiac sarcoidosis even Fluorine-18 fluorodeoxyglucose (18F-FDG) PET/CT, which are both performed as part of the clinical routine work-up.
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Sensitivity of 68Ga-DOTA-TOC PET/CT versus contrast-enhanced MRI in patients with clinically suspected acute myocarditis (using clinical diagnostic criteria as well as endomyocardial biopsy as reference)
Timeframe: Completion of enrollment, approximately 2 years
Specificity of 68Ga-DOTA-TOC PET/CT versus contrast-enhanced MRI in patients with clinically suspected acute myocarditis (using clinical diagnostic criteria as well as endomyocardial biopsy as reference)
Timeframe: Completion of enrollment, approximately 2 years
Sensitivity of 68Ga-DOTA-TOC PET/CT versus contrast-enhanced MRI and 18F-FDG PET/CT in patients with clinically suspected cardiac sarcoidosis (using clinical diagnostic criteria as well as endomyocardial biopsy as reference)
Timeframe: Completion of enrollment, approximately 5 years
Specificity of 68Ga-DOTA-TOC PET/CT versus contrast-enhanced MRI and 18F-FDG PET/CT in patients with clinically suspected cardiac sarcoidosis (using clinical diagnostic criteria as well as endomyocardial biopsy as reference)
Timeframe: Completion of enrollment, approximately 5 years