2014
Model-Based Identification of Anatomical Boundary Conditions in Living Tissues
PETERLÍK, Igor, Hadrien COURTECUISSE, Christian DURIEZ a Stephane COTINZákladní údaje
Originální název
Model-Based Identification of Anatomical Boundary Conditions in Living Tissues
Autoři
PETERLÍK, Igor (703 Slovensko, domácí), Hadrien COURTECUISSE (250 Francie), Christian DURIEZ (250 Francie) a Stephane COTIN (250 Francie)
Vydání
Neuveden, Information Processing in Computer-Assisted Interventions, od s. 196-205, 10 s. 2014
Nakladatel
Springer International Publishing
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10201 Computer sciences, information science, bioinformatics
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Forma vydání
tištěná verze "print"
Impakt faktor
Impact factor: 0.402 v roce 2005
Kód RIV
RIV/00216224:14610/14:00078000
Organizační jednotka
Ústav výpočetní techniky
ISBN
978-3-319-07520-4
ISSN
Klíčová slova anglicky
elastic registration; constrained dynamics; finite element method
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 1. 4. 2015 20:10, RNDr. Igor Peterlík, Ph.D.
Anotace
V originále
In this paper, we present a novel method dealing with the identification of boundary conditions of a deformable organ, a partic- ularly important step for the creation of patient-specific biomechani- cal models of the anatomy. As an input, the method requires a set of scans acquired in different body positions. Using constraint-based finite element simulation, the method registers the two data sets by solving an optimization problem minimizing the energy of the deformable body while satisfying the constraints located on the surface of the registered organ. Once the equilibrium of the simulation is attained (i.e. the organ registration is computed), the surface forces needed to satisfy the con- straints provide a reliable estimation of location, direction and magnitude of boundary conditions applied to the object in the deformed position. The method is evaluated on two abdominal CT scans of a pig acquired in flank and supine positions. We demonstrate that while computing a physically admissible registration of the liver, the resulting constraint forces applied to the surface of the liver strongly correlate with the loca- tion of the anatomical boundary conditions (such as contacts with bones and other organs) that are visually identified in the CT images.
Návaznosti
LM2010005, projekt VaV |
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