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Scanning plane included short axis view, four-chamber view, and long axis view. 掃描平麪有短軸麪、四腔麪和長軸麪。
The three-chamber view is an oblique long-axis view that optimizes visualization of the LV, LA, aortic root, MV, and aortic valve (Fig 13). 爲(wèi)斜長軸平麪，能更好地顯示LV、LA、主動脈根部、MV和主動脈瓣（圖13）。
Left ventricular ejection fraction(EF) and fractional shortening(FS) were measured on the M-mode echocardiogram at parasternal long axis view. 取胸骨旁左室長軸觀，用M型測量左室射血分?jǐn)?shù)和縮短率。