Abstract：Objective To explore the features and clinical effectiveness of application of TDI (Tissue Doppler Imaging) in evaluation of mid-diastolic mitral annular velocity curve in patients with LVH (Left Ventricular Hypertrophy). Methods Conventional Doppler imaging was performed in 168 LVH patients to measure the indexes of early-diastolic (E), mid-diastolic (L), late-diastolic (A) blood flow velocities of mitral valves. While, TDI was applied to measure the systolic motion velocity (Sa) of the lateral or septal wall of mitral valve annulus as well as the early-diastolic (Ea), mid-diastolic (La), late-diastolic (Aa) mitral annular motion velocity. Results Among all the 168 patients with LVH, 56 cases(33%) were identified with La especially in the lateral wall of mitral valve annulus; whereas mid-diastolic trans-mitrial blood flow L was found in 42 (25%) cases. La indicated the increase of left ventricular filling pressure and the risks of further HF (Heart Failure). When La was associated with the L, the risks of HF would be increased further. Conclusion La was frequently observed in patients with LVH, especially at the lateral annulus. Its presence might predict the increase of left ventricular filling pressure and potential risks for HF events, particularly when it was associated with mid-diastolic trans-mitral blood flow velocity.
霍晓光，童晓明，刘晓，孟晓娇，王涛，马炎，闫鑫. 组织多普勒显像评价舒张中期二尖瓣环运动速度曲线的特点与临床价值[J]. 中国医疗设备, 2015, 30(8): 46-49.
HUO Xiao-guang, TONG Xiao-ming, LIU Xiao, MENG Xiao-jiao, WANG Tao, MA Yan, YAN Xin. Features and Clinical Effectiveness of Application of Tissue Doppler Imaging in Evaluation of Mid-Diastolic Mitral Annular Motion Velocity Curve. China Medical Devices, 2015, 30(8): 46-49.
Pritchett AM,Jacobsen SJ,Mahoney DW,et al.Left atrial volume as an index of left atrial size: a population-based study[J].J Am Coll Cardiol,2003,41(6):1036-1043.
[3]
Ommen SR,Nishimura RA,Appleton CP,et al.Clinical utility of Doppler echocardiography and tissue Doppler imaging in the estimation of left ventricular filling pressures:a comparative simultaneous Doppler-catheterization study[J].Circulation,2000,102(15):1788-1794.
[4]
RodriguezL,GarciaM,AresM,et al.Assessment of mitral annular dynamics during diastolic by Dopplertissueimaging: comparision with mitral Doppler inflow in subjects without heart disease and in patientswith left ventricular hypertrophy[J].Am Heart J,1996,131(5):982-987.
[7]
Rivas-Gotz C,Khoury DS,Manolios M,et al.Time interval between onset of mitral inflow and onset of early diastolic velocity by tissue Doppler: a novel index of left ventricular relaxation;experimental studies and clinical application[J].J Am Coll Cardiol,2003,42(8):1463-1470.
[7]
Rivas-Gotz C,Khoury DS,Manolios M,et al.Time interval between onset of mitral inflow and onset of early diastolic velocity by tissue Doppler: a novel index of left ventricular relaxation;experimental studies and clinical application[J].J Am Coll Cardiol,2003,42(8):1463-1470.
Ha JW,Ahn A,Moon JY,et al.Triphasic mitral inflow velocity with mid-diastolic flow:the presence of mid-diastolic mitral annularocity indicates advanced diastolic dysfunction[J].Eur J Echocardiogr,2006,7(1):16-21.
[8]
Ha JW,Ahn A,Moon JY,et al.Triphasic mitral inflow velocity with mid-diastolic flow:the presence of mid-diastolic mitral annularocity indicates advanced diastolic dysfunction[J].Eur J Echocardiogr,2006,7(1):16-21.
[9]
Pai RG,Gill KS.Amplitudes,durations,and timings of apically directed left ventricular myocardial velocities,II:systolic and diastolic asynchrony in patients with left ventricular hypertrophy[J].J Am Soc Echocardiogr,1998,11(2):112-118.
[9]
Pai RG,Gill KS.Amplitudes,durations,and timings of apically directed left ventricular myocardial velocities,II:systolic and diastolic asynchrony in patients with left ventricular hypertrophy[J].J Am Soc Echocardiogr,1998,11(2):112-118.
[10]
Jaber WA,Lam CSP,Ling LH,et al.Invasive characterization of hemodynamic events during diastasis in patients with structural heart disease[J].J Card Fail,2006,12(6):S20.
[2]
Pritchett AM,Jacobsen SJ,Mahoney DW,et al.Left atrial volume as an index of left atrial size: a population-based study[J].J Am Coll Cardiol,2003,41(6):1036-1043.
[3]
Ommen SR,Nishimura RA,Appleton CP,et al.Clinical utility of Doppler echocardiography and tissue Doppler imaging in the estimation of left ventricular filling pressures:a comparative simultaneous Doppler-catheterization study[J].Circulation,2000,102(15):1788-1794.
[4]
RodriguezL,GarciaM,AresM,et al.Assessment of mitral annular dynamics during diastolic by Dopplertissueimaging: comparision with mitral Doppler inflow in subjects without heart disease and in patientswith left ventricular hypertrophy[J].Am Heart J,1996,131(5):982-987.
[5]
Yip G,WangM,Zhang Y,et al.Left ventricular long axis function in diastolic heart failure is reduced in both diastole and systole: time for a redefinition[J].Heart,2002,87(2):121-125.
[5]
Yip G,WangM,Zhang Y,et al.Left ventricular long axis function in diastolic heart failure is reduced in both diastole and systole: time for a redefinition[J].Heart,2002,87(2):121-125.
