Multimodality cardiovascular imaging in pulmonary embolism.

Area of Science:

• Cardiovascular Medicine
• Radiology
• Pulmonology

Background:

• Acute pulmonary embolism (APE) is a significant cause of cardiovascular morbidity and mortality.
• Right ventricular (RV) failure often precedes hemodynamic compromise in APE, necessitating its identification for risk stratification.
• Inadequate treatment or recurrent emboli can lead to chronic thromboembolic pulmonary hypertension (CTEPH).

Purpose of the Study:

• To highlight the importance of rapid and accurate diagnosis of life-threatening APE.
• To emphasize the role of identifying RV failure in APE risk stratification and management.
• To discuss the utility and limitations of various imaging modalities in diagnosing and managing PE and CTEPH.

Main Methods:

• Review of diagnostic imaging modalities for pulmonary embolism (PE), including chest computed tomography pulmonary angiography (CTPA), echocardiography, magnetic resonance imaging, and nuclear imaging.
• Assessment of thromboembolic burden using CTPA as a primary diagnostic step.
• Hemodynamic assessment through echocardiography and CTPA.
• Utilizing nuclear imaging for differentiating CTEPH from APE.
• Emphasis on combining multimodality cardiovascular imaging for comprehensive PE assessment.

Main Results:

• CTPA is the initial imaging modality for PE diagnosis and can assess hemodynamic status.
• Echocardiography also aids in hemodynamic assessment and RV function evaluation.
• Nuclear imaging is valuable for distinguishing between acute and chronic PE (CTEPH).

Conclusions:

• Combining multimodality cardiovascular imaging offers improved perspectives for PE diagnosis, risk stratification, and treatment decisions.
• Understanding the advantages and pitfalls of each imaging technique is essential for optimal patient management.
• Timely and accurate diagnosis, particularly of RV strain, is critical for improving APE prognosis and preventing CTEPH.