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Biventricular Assessment of Cardiac Function and Pressure-Volume Loops by Closed-Chest Catheterization in Mice

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Imaging in pulmonary hypertension.

Irene M Lang¹, Christina Plank, Roela Sadushi-Kolici

¹Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria. irene.lang@meduniwien.ac.at

JACC. Cardiovascular Imaging

|December 18, 2010

Summary

This summary is machine-generated.

Pulmonary hypertension (PH) diagnosis involves imaging the right ventricle and pulmonary arteries, especially in heart failure patients. Echocardiography screens, but right heart catheterization is crucial for precise pressure measurements and classifying PH subtypes.

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Area of Science:

Cardiology and Pulmonary Medicine
Diagnostic Imaging in Cardiovascular Disease

Background:

Pulmonary hypertension (PH), defined as mean pulmonary arterial pressure ≥25 mm Hg, is prevalent in heart failure patients.
Accurate diagnosis and classification are essential for effective management of PH.

Purpose of the Study:

To outline the diagnostic imaging strategies for pulmonary hypertension.
To emphasize the roles of various imaging modalities in differentiating PH subtypes and guiding treatment.

Main Methods:

Echocardiography for cost-effective screening and follow-up of PH.
Right heart catheterization for definitive pressure and flow measurements, distinguishing pre- and post-capillary PH.
Perfusion scintigraphy to exclude chronic thromboembolic pulmonary hypertension (CTEPH).
Computed tomography (CT) and cardiac magnetic resonance (CMR) as key ancillary tools for classifying WHO PH subtypes.

Main Results:

Echocardiography serves as an initial screening tool.
Right heart catheterization remains the gold standard for hemodynamic assessment.
Advanced imaging like CT and CMR are vital for detailed anatomical and etiological assessment, aiding in PH classification.

Conclusions:

A multi-modality imaging approach is crucial for comprehensive pulmonary hypertension diagnosis and management.
Integrating echocardiography, right heart catheterization, and advanced imaging like CT/CMR allows for accurate PH subtyping and treatment selection.