title: Role of M-mode technique in today's echocardiography.
abstract: M-mode echocardiography is considered to be obsolete by many. The technique rarely is included in American Society of Echocardiography standards documents, except for M-mode measurements, which have limited value. The superior temporal resolution of M-mode echocardiography is frequently overlooked. Doppler recordings reflect blood velocity, whereas M-mode motion of cardiac structures reflect volumetric blood flow. The 2 examinations are hemodynamically complementary. In the current digital era, recording multiple cardiac cycles of two-dimensional echocardiographic images is no longer necessary. However, there are times when intermittent or respiratory changes occur. The M-mode technique is an effective and efficient way to record the necessary multiple cardiac cycles. In certain situations, M-mode recordings of the valves and interventricular septum can be particularly helpful in making a more accurate and complete echocardiographic cardiac assessment, thus helping to make the examination more cost-effective.
authors.affiliation: Indiana University Hospital, Indianapolis, Indiana 46202, USA. Hfeigenb@iupui.edu
authors.forename: Harvey
authors.initials: H
authors.lastname: Feigenbaum
mesh_terms: D004452:Echocardiography / Q000379:methods* / Q000639:trends*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D055414:Myocardial Perfusion Imaging / Q000379:methods* / Q000639:trends*