The impact of preload on 3-dimensional deformation parameters: principal strain, twist and torsion

Autor: Hyo-Suk Ahn, Yong-Kyun Kim, Ho Chul Song, Euy Jin Choi, Gee-Hee Kim, Jung Sun Cho, Sang-Hyun Ihm, Hee-Yeol Kim, Chan Seok Park, Ho-Joong Youn
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Cardiovascular Ultrasound, Vol 15, Iss 1, Pp 1-12 (2017)
Druh dokumentu: article
ISSN: 1476-7120
DOI: 10.1186/s12947-017-0111-x
Popis: Abstract Background Strain analysis is feasible using three-dimensional (3D) echocardiography. This approach provides various parameters based on speckle tracking analysis from one full-volume image of the left ventricle; however, evidence for its volume independence is still lacking. Methods Fifty-eight subjects who were examined by transthoracic echocardiography immediately before and after hemodialysis (HD) were enrolled. Real-time full-volume 3D echocardiographic images were acquired and analyzed using dedicated software. Two-dimensional (2D) longitudinal strain (LS) was also measured for comparison with 3D strain values. Results Longitudinal (pre-HD: −24.57 ± 2.51, post-HD: −21.42 ± 2.15, P
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