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背景:在主动脉瓣狭窄(AS)患者中,准确地评价主动脉瓣面积(AVA)对临床决策的确定非常重要。目前尚无关于三维超声心动图在定量测定AS中作用的评估。目的:评价实时三维超声心动图(RT3D)和三维导向二
Background: In patients with aortic stenosis (AS), accurate assessment of aortic valve area (AVA) is crucial for clinical decision making. There is no assessment of the role of three-dimensional echocardiography in the quantitative determination of AS. Objectives: To evaluate real-time three-dimensional echocardiography (RT3D) and three-dimensional orientation II