Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Radial versus Longitudinal Myocardial Deformation from Gray-Scale Echocardiography
Year:2007
Research Areas
  • Electronics engineering
Information
Abstract
The objectives of this work are to evaluate a novel non-Doppler-based echocardiographic method that makes it possible to simultaneously obtain the radial and longitudinal components of myocardial velocity (V) and strain (S), and to assess whether left ventricular fiber architecture affects the net function of the myocardium. Previous reports state that differences in the estimation of regional function between septum and lateral walls can be related to the anatomic disposition of myocardial fibers. In this work we measure and compare in 21 healthy volunteers longitudinal and radial peak systolic velocity V (Vlong, Vrad: cm/s), peak systolic strain S (Slong, Srad: %) and time-to-peak S and V (T-Smax, T-Vmax: ms) at the midsegments of the septal and lateral walls. Results show that V was higher, both in the radial and longitudinal components, in the lateral wall than in the septum (Vrad: 4.77  0.26 cm/s vs. 3.77  0.20 cm/s, p  0.007; Vlong: 5.60  0.48 cm/s vs. 4.13  0.11 cm/s, p  0.01). Radial strain was higher in the septum (Srad: 28.63  2.25% vs. 22.54  1.5%, p  0.015), and longitudinal strain, in the lateral wall (Slong: 25.89  1.43% vs. 22.20  0.87%, p  0.02). There was a significant delay in longitudinal T-Smax between the lateral and septal medial segments (mean: 14.5 ms; CI 95%: 0.3¿28.6 ms; p  0.04), with no difference in radial T-Smax (277.1  8.6 ms vs. 277.2  12.4 ms, p  0.93). The assessment of regional myocardial function by this new method enables the simultaneous analysis of its radial and longitudinal components. These measurements correlate well with previous anatomical knowledge of the architecture of myocardial fibers, emphasizing its functional significance in regional myocardial function analysis.
International
Si
JCR
Si
Title
ULTRASOUND MED BIOL
ISBN
0301-5629
Impact factor JCR
1,922
Impact info
Volume
33
Journal number
11
From page
1699
To page
1705
Month
NOVIEMBRE
Ranking
Participants
  • autor: E. Peréz-David (Hospital G.U. Gregorio Marañon)
  • autor: V. Verdugo (Hospital G.U. Gregorio Marañon)
  • autor: P. Mahia (Hospital G.U. Gregorio Marañon)
  • Autor: Maria Jesus Ledesma Carbayo (UPM)
  • autor: M. Desco (Hospital G.U. Gregorio Marañon)
  • autor: M. Moreno (Hospital G.U. Gregorio Marañon)
  • Autor: Andres de Santos Lleo (UPM)
  • autor: M.A. Garcia-Fernandez (Hospital G.U. Gregorio Marañon)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Tecnología de imágenes biomédicas
  • Departamento: Ingeniería Electrónica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)