Impact of temporal resolution on LV myocardial regional strain assessment with real-time 3D ultrasound.
Non-invasive quantification of regional left ventricular (LV) deformation is crucial for the identification of clinical and subclinical myocardial dysfunction in various conditions. Several software tools now exist to provide regional LV strain estimation for echocardiography images. In this paper, we experimentally investigated the impact of real-time three-dimensional (RT3D) ultrasound temporal resolution on the precision of an integrated speckle-tracking framework. We compared temporal displacement and strain profiles acquired at three different frame rates on five normal volunteers. Results showed that estimated displacement fields and regional strain measurements were more homogeneous and of larger amplitude at higher frame rates.
Department of Biomedical Engineering, Columbia University, ET-35l, 1210 Amsterdam Avenue, New York, NY 10027, USA. a12776@columbia.edu
Auranuch
A
Lorsakul
Viktor
V
Gamarnik
Qi
Q
Duan
Cesare
C
Russo
Elsa
E
Angelini
Shunichi
S
Homma
Andrew F
AF
Laine
D000465:Algorithms; D003199:Computer Systems; D019560:Echocardiography, Three-Dimensional / Q000379:methods*; D055119:Elastic Modulus / Q000502:physiology; D054459:Elasticity Imaging Techniques / Q000379:methods*; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D016277:Ventricular Function, Left / Q000502:physiology*