Technical aspects of diastology: why mitral inflow and tissue Doppler imaging are the preferred parameters?

Echocardiography
Renee L BessJulius Gardin

Abstract

Doppler methods for assessing left ventricular (LV) diastolic function have increased in number and complexity. However, time constraints may prevent measurement of all parameters during routine transthoracic echocardiography. Therefore, we designed a study to determine which Doppler parameters could be most successfully and quickly obtained. The recording success rate and time required to record different LV diastolic function parameters were evaluated in 80 patients. A specific recording protocol was followed by an experienced, credentialed sonographer and time intervals to record each parameter were measured. In comparison with color Doppler M-mode of LV inflow propagation velocities (Vp) and pulmonary venous (PV) flow measurements, transmitral valve (MV) flow and tissue Doppler imaging (TDI) of the mitral annulus had the highest recording success rate and required the shortest time to record. PV flow and Vp took longer to obtain (80.1+/-34.3 sec and 57.1+/-29.1 sec, respectively) than did mitral valve inflow (36.3+/-20.7 sec) and mitral valve annular TDI (29.3+/-18.4 sec for septal and 33.3+/-14.5 sec for lateral). MV flow velocities, Vp, and TDI were successfully recorded in virtually all patients (99-100%). In comparison,...Continue Reading

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Citations

Aug 16, 2011·Current Heart Failure Reports·Helene von Bibra, Martin St John Sutton
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