射血分数
射血分数(英語:ejection fraction,缩写EF)是一个心脏生理学术语,指每博输出量占心室舒張末期容積的百分比,可分为左心室射血分数(left ventricular ejection fraction,LVEF)和右心室射血分数(right ventricular ejection fraction,RVEF)[1]。
正常值
心室容积 | ||
---|---|---|
右心室 | 左心室 | |
舒张末期容积 | 144 mL (± 23 mL)[2] | 142 mL (± 21 mL)[3] |
舒张末期容积 / 体表面积 (mL/m2) | 78 mL/m2 (± 11 mL/m2)[2] | 78 mL/m2 (± 8.8 mL/m2)[3] |
收缩末期容积 | 50 mL (± 14 mL)[2] | 47 mL (± 10 mL)[3] |
收缩末期容积 / 体表面积 (mL/m2) | 27 mL/m2 (± 7 mL/m2)[2] | 26 mL/m2 (± 5.1 mL/m2)[3] |
每搏输出量 | 94 mL (± 15 mL)[2] | 95 mL (± 14 mL)[3] |
每搏输出量 / 体表面积 (mL/m2) | 51 mL/m2 (± 7 mL/m2)[2] | 52 mL/m2 (± 6.2 mL/m2)[3] |
射血分数 | 66% (± 6%)[2] | 67% (± 4.6%)[3] |
心率 | 60–100 bpm[4] | 60–100 bmp[4] |
心输出量 | 4.0–8.0 公升[5] | 4.0–8.0 公升[5] |
参考文献
- ^ Appleton CP, Galloway JM, Gonzalez MS, Gaballa M, Basnight MA. Estimation of left ventricular filling pressures using two-dimensional and Doppler echocardiography in adult patients with cardiac disease. Additional value of analyzing left atrial size, left atrial ejection fraction and the difference in duration of pulmonary venous and mitral flow velocity at atrial contraction. Journal of the American College of Cardiology. December 1993, 22 (7): 1972–82. PMID 8245357. doi:10.1016/0735-1097(93)90787-2.
- ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Maceira AM, Prasad SK, Khan M, Pennell DJ. Reference right ventricular systolic and diastolic function normalized to age, gender and body surface area from steady-state free precession cardiovascular magnetic resonance (PDF). European Heart Journal. December 2006, 27 (23): 2879–88. PMID 17088316. doi:10.1093/eurheartj/ehl336.
- ^ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Maceira A. Normalized Left Ventricular Systolic and Diastolic Function by Steady State Free Precession Cardiovascular Magnetic Resonance. Journal of Cardiovascular Magnetic Resonance. 2006, 8: 417–426. doi:10.1080/10976640600572889.
- ^ 4.0 4.1 Normal ranges for heart rate are among the narrowest limits between 心跳过缓 and 心跳过速. See the Bradycardia and Tachycardia articles for more detailed limits.
- ^ 5.0 5.1 Normal Hemodynamic Parameters – Adult (PDF). Edwards Lifesciences LLC. 2009.