Assessment of Left Ventricular Torsion in Short Axis View between Healthy Subjects and Significant Coronary Artery Disease Patients

Zahra Arab; Manijhe  Mokhtari-Dizaji; Faride Roshanali; Hassan Moladoust

Zahedan Journal of Research in Medical Sciences

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Assessment of Left Ventricular Torsion in Short Axis View between Healthy Subjects and Significant Coronary Artery Disease Patients

Author(s):

Zahra Arab¹,

Manijhe Mokhtari-Dizaji^1,*,

Faride Roshanali²,

Hassan Moladoust³

1Department of Medical Physics, Tarbiat Modares University, Tehran, Iran

2Department of Cardiology, Dey General Hospital, Tehran, Iran

3Department of Medical Physics, Guilan Medical Sciences University, Rasht, Iran

Zahedan Journal of Research in Medical Sciences:Vol. 15, issue 9; e92857

Published online:Feb 02, 2013

Article type:Research Article

Received:Oct 09, 2012

Accepted:Jan 12, 2013

How to Cite:Zahra ArabManijhe Mokhtari-DizajiFaride RoshanaliHassan MoladoustAssessment of Left Ventricular Torsion in Short Axis View between Healthy Subjects and Significant Coronary Artery Disease Patients.Zahedan J Res Med Sci.15(9):e92857.

Abstract

Background : Coronary artery disease causes changes in biomechanical parameters and function of myocardial. Recently, torsion angle is one of the most important mechanical parameters. Therefore in this study, torsion angle in healthy subjects and LAD significant coronary artery disease patients, using echo tracking method in short axis view, was evaluated.
Materials and Methods : In cross sectional study, 14 healthy subjects and 10 patients with significant stenosis of LAD were evaluated. Two dimensional echocardiography images were scanned in apical and basal parasternal short axis view were recorded. Successive ultrasonic images were processed by echo tracking under block matching algorithm and peak torsion angle were estimated. Difference between healthy group and patient group were extracted by using peak torsion angle by the confidence level of 95%.
Results : In this study, basal rotation angle, apical rotation angle and torsion angle in short axis view in significant coronary artery disease patients significantly decreased 33%, 44% and 38% relative to healthy subjects, respectively. Also time to reach peak torsion angle in LAD coronary artery stenosis patients increased 19% relative to healthy group.
Conclusion : It seems, torsion angle in short axis view, can diagnose LAD coronary artery stenosis patients reative to healthy subject.

Keywords

Echocardiography

Heart torsion angle

Atherosclerosis

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