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Updated: Aug 27, 2025

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
Published on: June 11, 2019
[Cardiac masses: classification, clinical features and diagnostic approach]
Francesco Angeli1, Michele Fabrizio1, Pasquale Paolisso2
1U.O. Cardiologia, Policlinico Sant'Orsola-Malpighi IRCCS, Bologna.
Insights
Diagnosing cardiac masses requires a multi-step, non-invasive approach. Echocardiography is the first step, followed by advanced imaging like cardiac CT or MRI for better characterization and malignancy assessment.
Area of Science:
- Cardiology
- Medical Imaging
- Oncology
Background:
- Cardiac masses encompass tumors, metastases, and pseudotumors like thrombi and vegetations.
- While primary cardiac tumors are rare, secondary masses and pseudotumors are more common.
- A standardized non-invasive diagnostic pathway for cardiac masses is not well-established.
Purpose of the Study:
- To review non-invasive diagnostic techniques for cardiac masses.
- To discuss the capabilities and limitations of each imaging modality.
- To propose a practical diagnostic algorithm for clinical use.
Main Methods:
- Literature review of non-invasive diagnostic techniques for cardiac masses.
- Analysis of echocardiography, cardiac computed tomography (CT), cardiac magnetic resonance (CMR), and positron emission tomography-CT (PET-CT).
- Evaluation of diagnostic accuracy and tissue characterization for various cardiac masses.
Main Results:
- Echocardiography is effective for identifying thrombi, vegetations, and some tumors (e.g., myxoma, fibroelastoma).
- Advanced imaging (CT, CMR) offers better tissue characterization and malignancy assessment.
- A comprehensive non-invasive approach can potentially diagnose malignancy without histology, guiding therapy.
Conclusions:
- A stepwise diagnostic approach utilizing multiple non-invasive imaging modalities is crucial for cardiac masses.
- Advanced imaging techniques like CT and CMR are essential for characterizing masses and assessing malignancy.
- Establishing a clear diagnostic pathway improves patient management and therapeutic strategies for cardiac masses.
Abstract:
The term cardiac mass refers to benign or malignant cardiac tumors and cardiac metastases but also to pseudotumors, which is a heterogeneous group consisting of thrombi, vegetations and normal variant structures. While primitive cardiac tumors are rare, metastases and pseudotumors are relatively common. The non-invasive diagnostic approach has not been well established in the literature yet. The first-line non-invasive approach consists of echocardiography, which provides good diagnostic accuracy for masses like thrombi, vegetations and some tumors (mainly myxoma and fibroelastoma). In contrast, for other masses, it does not provide information about the potential malignancy because of poor tissue characterization. Second-line (cardiac computed tomography and cardiac magnetic resonance) or third-line (positron emission tomography-computed tomography) evaluations have been validated in the diagnostic approach to cardiac masses by many studies. In fact, a comprehensive diagnostic approach may establish the diagnosis of malignancy without histological report, which is pivotal for the subsequent therapeutic strategy.The aim of this narrative review is to describe the commonly available non-invasive diagnostic techniques for cardiac masses, their potential and limitations and to suggest a diagnostic pathway for common practice.
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