1. Takahashi K, Al Naami G, Thompson R, Inage A, Mackie AS, Smallhorn JF. Normal rotational, torsion and untwisting data in children, adolescents and young adults. J Am Soc Echocardiogr. 2010; 23:286–293.
2. Kaku K, Takeuchi M, Tsang W, Takigiku K, Yasukochi S, Patel AR, Mor-Avi V, Lang RM, Otsuji Y. Age-related normal range of left ventricular strain and torsion using three-dimensional speckle-tracking echocardiography. J Am Soc Echocardiogr. 2014; 27:55–64.
3. Kim CS, Park S, Eun LY. Myocardial rotation and torsion in child growth. J Cardiovasc Ultrasound. 2016; 24:223–228.
4. Al-Naami GH. Torsion of young hearts: a speckle tracking study of normal infants, children, and adolescents. Eur J Echocardiogr. 2010; 11:853–862.
5. Notomi Y, Srinath G, Shiota T, Martin-Miklovic MG, Beachler L, Howell K, Oryszak SJ, Deserranno DG, Freed AD, Greenberg NL, Younoszai A, Thomas JD. Maturational and adaptive modulation of left ventricular torsional biomechanics: Doppler tissue imaging observation from infancy to adulthood. Circulation. 2006; 113:2534–2541.
6. Wulfsohn D, Nyengaard JR, Tang Y. Postnatal growth of cardiomyocytes in the left ventricle of the rat. Anat Rec A Discov Mol Cell Evol Biol. 2004; 277:236–247.
7. Yu HK, Yu W, Cheuk DK, Wong SJ, Chan GC, Cheung YF. New three-dimensional speckle-tracking echocardiography identifies global impairment of left ventricular mechanics with a high sensitivity in childhood cancer survivors. J Am Soc Echocardiogr. 2013; 26:846–852.
8. Prinz C, Faber L, Horstkotte D, Körperich H, Moysich A, Haas N, Kececioglu D, Thorsten Laser K. Evaluation of left ventricular torsion in children with hypertrophic cardiomyopathy. Cardiol Young. 2014; 24:245–252.
9. Zhong SW, Zhang YQ, Chen LJ, Wang SS, Li WH, Sun YJ. Ventricular twisting and dyssynchrony in children with single left ventricle using three-dimensional speckle tracking imaging after the Fontan operation. Echocardiography. 2016; 33:606–617.
10. Cheung YF, Li SN, Chan GC, Wong SJ, Ha SY. Left ventricular twisting and untwisting motion in childhood cancer survivors. Echocardiography. 2011; 28:738–745.
11. Yu W, Li SN, Chan GC, Ha SY, Wong SJ, Cheung YF. Transmural strain and rotation gradient in survivors of childhood cancers. Eur Heart J Cardiovasc Imaging. 2013; 14:175–182.