Yan WF, Gao Y, Zhang Y, et al. - Using the volume-time curve from cardiac magnetic resonance (CMR), researchers ascertained if type 2 diabetes mellitus (T2DM) affects the diastolic function of the left ventricle (LV) in patients with essential hypertension. In total, 124 essential hypertension patients, including 48 with T2DM [HTN(T2DM +) group] and 76 without T2DM [HTN(T2DM-) group], and 52 normal controls who had CMR scans were involved in this investigation. In patients with essential hypertension, T2DM exacerbates LV diastolic dysfunction. The changes in the LV filling model reflected by the CMR volume-time curve may provide more information for early clinical intervention.