Regional wall motion and strain analysis across stages of fontan
reconstruction utilizing magnetic resonance tagging.
Fogel, Mark A, Krishanu B Gupta, Paul M Weinberg, Eric A Hoffman.
Cardiothoracic Imaging Research Center, Department of Radiology,
Hospital of the University of Pennsylvania and The Division of
Pediatric Cardiology, Department of Pediatrics and Department of
Radiology, The Children's Hospital of Philadelphia, Philadelphia, PA
19104
APStracts 2:0070H, 1995.
To determine whether systolic regional wall deformation and motion,
which may be used as an index of mechanical function, change with
surgical intervention in patients with functional single ventricle, a
non-invasive magnetic resonance tagging technique was employed to
examine 33 such patients at all stages of Fontan reconstruction. The
systolic motion of the intersection points were tracked to determine
regional twist and radial shortening. Finite strain analysis was
applied to the grid lines and principle E1 strains were derived.
Received 26 May 1994; accepted in final form 19 January 1995.
APS Manuscript Number H457-4.
Article publication pending Am. J. Physiol. (Heart Circ. Physiology).
ISSN 1080-4757 Copyright 1995 The American Physiological Society.
Published in APStracts on 21 March 1995.