RT info:eu-repo/semantics/article
T1 Vortical Features for Myocardial Rotation Assessment in Hypertrophic Cardiomyopathy using Cardiac Tagged Magnetic Resonance
A1 Sanz Estébanez, Santiago Rodrigo
A1 Cordero Grande, Lucilio
A1 Sevilla Ruiz, María Teresa
A1 Revilla Orodea, Ana
A1 Luis García, Rodrigo de
A1 Martín Fernández, Marcos Antonio
A1 Alberola López, Carlos
AB Left ventricular rotational motion is a feature of normal and diseased cardiac function. However, classical torsion and twist measures rely on the definition of a rotational axis which may not exist. This paper re- views global and local rotation descriptors of myocardial motion and introduces new curl-based (vortical) features built from tensorial magnitudes, intended to provide better comprehension about fibrotic tissue characteristics mechanical properties. Fifty-six cardiomyopathy patients and twenty-two healthy volun- teers have been studied using tagged magnetic resonance by means of harmonic phase analysis. Rotation descriptors are built, with no assumption about a regular geometrical model, from different approaches. The extracted vortical features have been tested by means of a sequential cardiomyopathy classification procedure; they have proven useful for the regional characterization of the left ventricular function by showing great separability not only between pathologic and healthy patients but also, and specifically, between heterogeneous phenotypes within cardiomyopathies.
YR 2018
FD 2018
LK http://uvadoc.uva.es/handle/10324/31381
UL http://uvadoc.uva.es/handle/10324/31381
LA spa
NO Medical Image Analysis, Julio 2018
DS UVaDOC
RD 22-nov-2024