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Abstract #4885

Prognostic value of cardiac T1 mapping in Pulmonary Arterial Hypertension

Laura Saunders1, Chris Johns1, Neil Stewart2, Charlotte Oram1, David Capener1, David Kiely1, Martin Graves3, Jim Wild1, and Andy Swift1

1University of Sheffield, Sheffield, United Kingdom, 2Hokkaido University, Sapporo, Japan, 3University of Cambridge, Cambridge, United Kingdom

Native T1 mapping of the myocardium was performed in 223 patients with pulmonary arterial hypertension. Patients with higher right ventricular (RV) insertion point T1 were less likely to survive than patients with lower inter-ventricular insertion point T1, however when assessed in a multivariate Cox regression with other MRI markers of cardiac size and function, inter-ventricular insertion point T1 was not an independent predictor of mortality.

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