What question did this study set out to answer?

This study evaluates the diagnostic value of FDG PET-CT in patients with suspected cardiac sarcoidosis after inconclusive CMR findings.

March 15, 2026European Journal of Heart Failure

FDG PET-CT uncovers cardiac sarcoidosis when CMR is inconclusive: the impact of multimodal imaging

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Key result

FDG PET-CT identifies ~53% of cardiac sarcoidosis cases missed by CMR after inconclusive imaging.

Why the study?

Cardiac sarcoidosis is underdiagnosed due to heterogeneous presentations and CMR limitations, making the added diagnostic value of FDG PET-CT following inconclusive CMR findings an important question.

Does FDG PET-CT improve the detection of cardiac sarcoidosis in patients with inconclusive CMR findings?

Population

30 patients with suspected or biopsy-confirmed CS in a tertiary care setting

Comparison

FDG PET-CT vs CMR (including parametric mapping)

Design

Retrospective study

Authors

MBMauro BaldiniCharité - Universitätsmedizin Berlin GPGiuseppe PaciMylan (Switzerland)GMG MetzgerCharité - Universitätsmedizin Berlin

Discussion

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Implication

May warrant FDG PET-CT after inconclusive CMR in suspected CS; extends evidence for multimodal diagnostic strategies.

Key Points

This study evaluates the diagnostic value of FDG PET-CT in patients with suspected cardiac sarcoidosis after inconclusive CMR findings.
Retrospective analysis of 30 patients with suspected or biopsy-confirmed cardiac sarcoidosis.
Comparison of CMR findings, including parametric mapping, with FDG PET-CT results.
Assessment of diagnostic timelines and management decisions based on imaging findings.
19 patients (63%) had biopsy-confirmed cardiac sarcoidosis.
CMR identified cardiac sarcoidosis in 14 patients (47%), while FDG PET-CT identified 16 patients (53%).
Among those identified by FDG PET-CT, 12 patients (75%) had unremarkable CMR findings.

Structured PICO

Does FDG PET-CT improve the detection of cardiac sarcoidosis in patients with inconclusive CMR findings?

Population

30 patients with suspected or biopsy-confirmed cardiac sarcoidosis (19 biopsy-confirmed CS, 11 histologically confirmed systemic sarcoidosis with cardiac symptoms) evaluated in a tertiary care setting between 2014 and 2025.

Intervention

18F-fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET-CT)

Comparator

Cardiac magnetic resonance imaging (CMR), including parametric mapping where available

Outcome

Detection of cardiac sarcoidosissurrogate

FDG PET-CT provides significant complementary diagnostic value for cardiac sarcoidosis, identifying cases missed or misdiagnosed by CMR.

Cite This Study

Baldini et al. (2026) studied this question. FDG PET-CT identified 53% of cardiac sarcoidosis cases missed by CMR in patients with inconclusive imaging, emphasizing the need for multimodal diagnostic strategies.

synapsesocial.com/papers/69b64d48b42794e3e660e125 https://doi.org/10.1093/ejhf/xuag034.002

Topics

Cardiomyopathy

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FDG PET-CT uncovers cardiac sarcoidosis when CMR is inconclusive: the impact of multimodal imaging

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

FDG PET-CT uncovers cardiac sarcoidosis when CMR is inconclusive: the impact of multimodal imaging

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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Topics

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