NDLI: 3D analysis of transmural myocardial strain from sonomicrometric crystals in the open chest dog

Content Provider	IEEE Xplore Digital Library
Author	Saracino, G. Ragnoni, A. Popovic, Z. Corsi, C. Greenberg, N. Lamberti, C. Thomas, J.D.
Copyright Year	2008
Description	Author affiliation: Cleveland Clinic, Cleveland, OH (Saracino, G.; Ragnoni, A.; Popovic, Z.; Greenberg, N.; Thomas, J.D.) \|\| Bologna Univ., Bologna (Corsi, C.; Lamberti, C.)
Abstract	Interest in left ventricular (LV) mechanics has recently focused on detailed 3D analysis of LV deformations. Our goal is to investigate transmural strain variability within the normal ventricle and during the early stages of ischemia using sonomicrometric crystals implanted into canine LV wall. In this study 3 open chest dog models were implanted in a two-tetrahedron configuration with three crystals on the epicardial surface, three on the endocardial surface and one in the LV midwall. Our algorithm numerically reconstructs local ventricular 3D geometry and mechanics including radial, longitudinal and circumferential strain. Along with EKG, pressure-volume signals were acquired using a catheter introduced to LV from the femoral artery. Results obtained clearly illustrate a difference in strain across the myocardium. This study shows that the method can disclose important information regarding transmural variability in animal model and further investigation with different pacing and conditions could enhance understating of LV Mechanics.
Starting Page	1097
Ending Page	1100
File Size	191842
Page Count	4
File Format	PDF
ISBN	9781424437061
ISSN	02766547
DOI	10.1109/CIC.2008.4749237
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-14
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Computers in Cardiology(CinC)
Subject Keyword	Myocardium Capacitive sensors Crystals Ischemic pain Surface reconstruction Arteries Animals Catheters Geometry Condition monitoring
Content Type	Text
Resource Type	Article

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