Assessment of regional rotation patterns improves the understanding of the systolic and diastolic left ventricular function: an echocardiographic speckle-tracking study in healthy individuals
- 1 January 2009
- journal article
- research article
- Published by Oxford University Press (OUP) in European Heart Journal – Cardiovascular Imaging
- Vol. 10 (1), 56-61
- https://doi.org/10.1093/ejechocard/jen141
Abstract
Aim To elucidate the complexity of left ventricular motion throughout the cardiac cycle, we studied regional rotation in detail. Methods and Results Regional rotation in six subdivisions of the circumference at three levels was studied by using speckle-tracking echocardiography in 40 healthy subjects. At the basal level the inferoseptal segments rotated significantly more clockwise during systole than the opposing anterolateral segments. At the papillary level the inferoseptal segments differed significantly from the anterolateral segments, where the inferoseptal segments rotated clockwise and the anterolateral segments rotated counter-clockwise. The apical level showed significant difference in regional rotation only at aortic valve opening. In early systole, untwist before the main systolic twist was seen at the basal and apical levels; however, the duration of the basal untwist was much longer than that of the apical. The diastolic phases of rotation at the basal and apical levels matched the different filling phases. Conclusion Large regional differences in rotation are present at the basal and papillary levels in healthy subjects. The diastolic untwist matches the phases of both the E-wave and A-wave and seems to be related with intraventricular pressure differences, indicating that untwist plays an important role in the filling of the ventricle.Keywords
This publication has 13 references indexed in Scilit:
- Three‐dimensional architecture of the left ventricular myocardiumThe Anatomical Record Part A: Discoveries in Molecular, Cellular, and Evolutionary Biology, 2006
- New Noninvasive Method for Assessment of Left Ventricular RotationCirculation, 2005
- Biphasic tissue Doppler waveforms during isovolumic phases are associated with asynchronous deformation of subendocardial and subepicardial layersJournal of Applied Physiology, 2005
- Two-dimensional strain–a novel software for real-time quantitative echocardiographic assessment of myocardial functionJournal of the American Society of Echocardiography, 2004
- Effects of Load Manipulations, Heart Rate, and Contractility on Left Ventricular Apical RotationCirculation, 1995
- Alterations in left ventricular twist mechanics with inotropic stimulation and volume loading in human subjects.Circulation, 1994
- Relation between longitudinal, circumferential, and oblique shortening and torsional deformation in the left ventricle of the transplanted human heart.Circulation Research, 1989
- STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENTThe Lancet, 1986
- Left ventricular fibre architecture in man.Heart, 1981
- Fiber Orientation in the Canine Left Ventricle during Diastole and SystoleCirculation Research, 1969