In this exploratory analysis of the SUGAR‐DM‐HF trial, a novel non‐invasive CMR‐based method of estimating PCWP was associated with other established circulating (NT‐proBNP) and imaging‐based (average E/e') surrogates of LV filling pressure along with the degree of pulmonary congestion (LUS‐measured B‐lines). This evidence concerns the gene NPPB and hydrops fetalis.