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The fundamental concept of electroanatomic mapping systems is to localize catheters within the heart in three dimensional space (a sort of "GPS" within the heart). Building a 3-D model of the heart with real-time visualization permits reduction in fluoroscopy use. In addition to 3-D structure, the voltage and timing of signals at each point of ...
Applications of three-dimensional ultrasound in cardiac treatment have achieved outstanding progress in scanning and treating heart issues. When 3D ultrasound is used to visualize the cardiac state of an individual, it is called 3D echocardiography. [6]
The ability to slice the virtual heart in infinite planes in an anatomically appropriate manner and to reconstruct three-dimensional images of anatomic structures make it unique for the understanding of the congenitally malformed heart. [13] Real-time three-dimensional echocardiography can be used to guide the location of bioptomes during right ...
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The lumped parameter model consists in a system of ordinary differential equations that adhere to the principles of conservation of mass and momentum balance. The model is obtained exploiting the electrical analogy where the current represents the blood flow, the voltage represents the pressure difference, the electric resistance plays the role of the vascular resistance (determined by the ...
Strain in three dimensions: Basically, any object or body is three dimensional, and can be deformed in different directions simultaneously. Strain can be described as a tensor with three principal strains (ε x, ε y and ε z in a Cartesian coordinate system), and six shear strains components. In the heart, it has been customary to describe the ...
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This phantom was the most complex model to date, with over 3.7 billion voxels. This model was used in many studies concerning health physics and medical physics. Dr. Bolch and team at the University of Florida created a set of pediatric phantoms from 2002 to 2006. [17] Child computational phantoms had been severely underrepresented until this ...