Left heart function is a crucial factor to determine cardiovascular therapies and evaluate the effects of treatments and judge the prognosis in conditions such as heart failure

valvular conditions and ischaemic heart disease. Three-dimensional echocardiography（3DE）has been attributed as the preferred one for its assessment

given an increased accuracy and reproducibility. Full-volume multi-beat acquisitions are prone to stitching artefacts due to arrhythmias and require prolonged breath holds. Single-beat acquisitions exhibit a lower temporal resolution

but address the limitations of multi-beat acquisitions.3DE manual algorithm remains time-consuming and laborious

which hinders its implementation in routine practice.With the further development of ultrasound technology

the fully automated knowledge-based algorithms for left heart function quantification may further promote the widespread use of 3DE in clinic. This paper reviews the application status and research progress of 3DE automated algorithms of left heart function.