ArticleCardiovascular engineering and technology2026
Non-Invasive Evaluation of Pulmonary Artery Stenosis in Congenital Heart Disease Patients Using Phase Contrast MRI.
Article in Cardiovascular engineering and technology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
Funding
Abstract
backgroundBranch pulmonary artery (PA) stenosis is a significant congenital heart defect causing elevated pulmonary blood pressure, trans-stenotic pressure drop, and abnormal differential blood flow to the lungs. We propose combined pressure-flow diagnostic parameters, pressure drop coefficient (CDP) and normalized energy loss (Ē
methodsSubject-specific branch PA test sections representing the main, left, and right PAs (MPA, LPA, and RPA) with a discrete LPA stenosis were manufactured from medical images using additive manufacturing. Three clinically-relevant stenosis severities, 70% area stenosis (AS), 80% AS, and 90% AS, were evaluated at 2 LPM cardiac output under pathophysiologic hemodynamics generated using a mock circulatory loop. 2D (all severities) and 3D (only 70% AS) PC MRI scans were performed to compute the velocity (or flow) and derived pressure drop across the PA test section. The CDP
resultsThe CDP
conclusionsThe CDP
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