Three dimensional echocardiography

2011 ◽  
Author(s):  
M. Monaghan ◽  
S. Adhya
Keyword(s):  
Biventricular Pacing ◽  
Myocardial Strain ◽  
Three Dimensional ◽  
Left Ventricular ◽  
3D Echocardiography ◽  
Lv Function ◽  
2D Echocardiography ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography ◽  
And Function

Three-dimensional (3D) echocardiography allows the real-time acquisition of volumes containing entire cardiac structures. The analysis of 3D volumes does not require any assumptions as to the shape of structures.3D echocardiography is more accurate than two-dimensional (2D) in the assessment of left ventricular (LV) volumes, mass, and function, and is comparable to cardiac magnetic resonance imaging. This makes it an ideal modality for measuring LV function particularly when this will determine significant interventions such as implanting of cardioverter/defibrillators, biventricular pacing, and the commencement and continuation of cancer chemotherapy. 3D echocardiography makes it easy to visualize valves and define pathological mechanisms. 3D assessment of dyssynchrony, myocardial strain, and stress imaging are attractive.However, 3D echocardiography is limited by the need for specialist software and lower spatial and temporal resolution when compared to 2D echocardiography.

scholarly journals Three dimensional echocardiography documents haemodynamic improvement by biventricular pacing in patients with severe heart failure

Heart ◽  
2001 ◽  
Vol 85 (5) ◽  
pp. 514-520
Author(s):  
W Y Kim ◽  
P Søgaard ◽  
P T Mortensen ◽  
H Kjærulf Jensen ◽  
A Kirstein Pedersen ◽  
...  
Keyword(s):  
Heart Failure ◽  
Biventricular Pacing ◽  
Three Dimensional ◽  
Left Ventricular ◽  
Walking Distance ◽  
Short Term ◽  
Bundle Branch Block ◽  
Patients With Heart Failure ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography

OBJECTIVESTo quantify the short term haemodynamic effects of biventricular pacing in patients with heart failure and left bundle branch block by using three dimensional echocardiography.DESIGNThree dimensional echocardiography was performed in 15 consecutive heart failure patients (New York Heart Association functional class III or IV) with an implanted biventricular pacing system. Six minute walk tests were performed to investigate the effect of biventricular pacing on exercise capacity. Data were acquired at sinus rhythm and after short term (2–7 days) biventricular pacing.RESULTSCompared with baseline values, biventricular pacing significantly reduced left ventricular end diastolic volume (EDV) by mean (SD) 4.0 (5.1)% (p < 0.01) and end systolic volume (ESV) by 5.6 (6.4)% (p < 0.02). Mitral regurgitant fraction was significantly reduced by 11 (12.1)% (p < 0.003) and forward stroke volume (FSV) increased by 13.9 (18.6)% (p < 0.02). Exercise capacity was significantly improved with biventricular pacing by 48.4 (43.3)% (p < 0.00001). Regression analyses showed that the percentage increase in FSV independently predicted percentage improvement in walking distance (r2 = 0.73, p < 0.0002). Both basal QRS duration and QRS narrowing predicted pacing efficacy, showing a significant correlation with %ΔEDV, %ΔESV, and %ΔFSV.CONCLUSIONSIn five of 15 consecutive patients with heart failure and left bundle branch block, biventricular pacing induced a more than 15% increase in FSV, which predicted a more than 25% increase in walking distance and was accompanied by an immediate reduction in left ventricular chamber size and mitral regurgitation.

scholarly journals The Clinical Benefits of Adding a Third Dimension to Assess the Left Ventricle with Echocardiography

Scientifica ◽  
2014 ◽  
Vol 2014 ◽  
pp. 1-18 ◽  
Author(s):  
Luigi P. Badano
Keyword(s):  
Comprehensive Evaluation ◽  
Three Dimensional ◽  
Left Ventricular ◽  
Data Sets ◽  
Clinical Benefits ◽  
Echocardiographic Assessment ◽  
Dimensional Echocardiography ◽  
Third Dimension ◽  
Three Dimensional Echocardiography ◽  
And Function

Three-dimensional echocardiography is a novel imaging technique based on acquisition and display of volumetric data sets in the beating heart. This permits a comprehensive evaluation of left ventricular (LV) anatomy and function from a single acquisition and expands the diagnostic possibilities of noninvasive cardiology. It provides the possibility of quantitating geometry and function of LV without preestablished assumptions regarding cardiac chamber shape and allows an echocardiographic assessment of the LV that is less operator-dependent and therefore more reproducible. Further developments and improvements for widespread routine applications include higher spatial and temporal resolution to improve image quality, faster acquisition, processing and reconstruction, and fully automated quantitative analysis. At present, three-dimensional echocardiography complements routine 2DE in clinical practice, overcoming some of its limitations and offering additional valuable information that has led to recommending its use for routine assessment of the LV of patients in whom information about LV size and function is critical for their clinical management.

SPECKLE TRACKING : A NEW PROGRESS IN ECHOCARDIOGRPAHY

2011 ◽  
pp. 48-53
Author(s):  
Anh Vu Nguyen
Keyword(s):  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Three Dimensional ◽  
Left Ventricular ◽  
Lv Function ◽  
Intraobserver Variability ◽  
Global Function ◽  
Recent Developments ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography

The author summarizes the recent developments in speckle-tracking echocardiography (STE), a relatively new technique that can be used in conjunction with two-dimensional or three-dimensional echocardiography for resolving the multidirectional components of left ventricular (LV) deformation. STE quantify accurately the regional and global function of the left ventricle. STE holds promise to reduce interobserver and intraobserver variability in assessing regional LV function. Following a brief overview of the approach, the authors pool the initial observations from clinical studies on the development, validation, merits, and limitations of STE.

scholarly journals Three-dimensional echocardiography. In vivo validation for left ventricular volume and function.

Circulation ◽  
1993 ◽  
Vol 88 (4) ◽  
pp. 1715-1723 ◽  
Author(s):  
S C Siu ◽  
J M Rivera ◽  
J L Guerrero ◽  
M D Handschumacher ◽  
J P Lethor ◽  
...  
Keyword(s):  
Left Ventricular Volume ◽  
Three Dimensional ◽  
Ventricular Volume ◽  
Left Ventricular ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography ◽  
And Function ◽  
In Vivo Validation
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