Cardiac Imaging Unit, Department of Radiology, University Hospital of Rouen, Rouen 76000, France.
UNIROUEN, Inserm U1096, UFR Médecine Pharmacie, Rouen 76000, France.
Br J Radiol. 2024 Jun 18;97(1159):1203-1213. doi: 10.1093/bjr/tqae071.
Left ventricular (LV) diastolic dysfunction (DD) is an initially asymptomatic condition that can progress to heart failure, either with preserved or reduced ejection fraction. As such, DD is a growing public health problem. Impaired relaxation, the first stage of DD, is associated with altered LV filling. With progression, reducing LV compliance leads to restrictive cardiomyopathy. While cardiac magnetic resonance (CMR) imaging is the reference for LV systolic function assessment, transthoracic echocardiography (TTE) with Doppler flow measurements remains the standard for diastolic function assessment. Rather than simply replicating TTE measurements, CMR should complement and further advance TTE findings. We provide herein a step-by-step review of CMR findings in DD as well as imaging features which may help identify the underlying cause.
左心室（LV）舒张功能障碍（DD）是一种最初无症状的病症，可进展为心力衰竭，伴或不伴有射血分数降低。因此，DD 是一个日益严重的公共卫生问题。舒张早期的松弛功能障碍与 LV 充盈异常有关。随着病情进展，LV 顺应性降低导致限制型心肌病。虽然心脏磁共振（CMR）成像可用于评估 LV 收缩功能，但经胸超声心动图（TTE）联合多普勒流量测量仍是评估舒张功能的标准。CMR 不应简单地复制 TTE 测量结果，而应补充和进一步推进 TTE 发现。本文提供了 DD 的 CMR 表现的逐步回顾，以及可能有助于确定潜在病因的影像学特征。
