부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.echo.2006.10.012 Byline: Ling Hui ([cor]), James Pemberton ([cor]), Edward Hickey (a ), Xiao Kui Li ([cor]), Peter Lysyansky (a ), Muhammad Ashraf ([cor]), Petra S. Niemann ([cor]), David J. Sahn ([cor]) Abstract: Torsion is an essential component of left ventricular (LV) function. Systolic rotation, as a component of torsion, winds the heart muscle up like a spring, setting up recoil for early diastole. We used a new 2-dimensional speckle tracking strain method to study differences in twisting in subendocardial and subepicardial layers of the LV in open-chest pigs. Our aim was to identify the relative contributions of the inner or outer layers of the LV wall to rotation and, hence, systole. Author Affiliation: ([cor]) Pediatric Cardiology, Oregon Health Science University, Portland, Oregon (a ) Department of Pediatric Cardiac Surgery, Doernbecher Children's Hospital, Oregon Health Science University, Portland, Oregon (a ) GE Medical Systems, Haifa, Israel. Article Note: (footnote) Supported in part by NHLBI R01 HL64647.