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Kaplan meier of whitfield and lung disease CLD-PH MRI model and the RHC measured mPAP. There is an increased mortality above the selected thresholds of Whitfield model, CLD-PH MRI model and RHC-measured mPAP for both definitions of severe PH according to the ESC/ERS guidelines. mPAP: mean pulmonary artery pressure; PVR: pulmonary vascular resistance; CI: cardiac index; CLD: chronic lung disease; PH: pulmonary hypertension; RHC: right heart catheter; MRI: magnetic resonance imaging.
