Geometric Attributes

The table below lists the geometric attributes for both the NURBS and discretized geometric representations. The electrical and/or mechanical analyses do not use all of the parts. Discretized parts, which both the electrical and mechanical simulations use, possess the same mesh topology. The sections that follow provide additional detail on the modeling approaches used for various parts of the cardiac anatomy.

Table 1. Heart Model Geometric Attributes

Part Name	Description	Dimensionality	Element Type	Simulation Usage
Aortic_Arch A.1	Aortic arch	Solid	C3D4	Mechanical
			SFM3D3
Aortic_Valve A.1	Aortic valve	Solid	None	Not used
Chordae_Tendineae_Mitral	Chordae tendineae for mitral valve	Line	T3D2	Mechanical
Chordae_Tendineae_Tricuspid	Chordae tendineae for tricuspid valve	Line	T3D2	Mechanical
Compliance A.1	Three fluid chambers to incorporate the compliance of the arterial, venous, and pulmonary systems	Surface	SFM3D4R	Mechanical
Coronary_Arteries1 A.1	Left coronary arteries	Surface	S3R, S4	Mechanical
Coronary_Arteries2 A.1	Right coronary arteries	Surface	S3R, S4	Mechanical
Coronary_Sinus_Valve A.1	Valve of the coronary sinus	Solid	None	Not used
Coronary_Veins1 A.1	Left coronary veins	Surface	S3R, S4	Mechanical
Coronary_Veins2 A.1	Right coronary veins	Surface	S3R, S4	Mechanical
Fat A.1	Cardiac fat	Solid	None	Not used
Fiber_Bundles A.1	The electrical representation of the bundle of His and Purkinje networks	Line	DC1D2	Electrical
Fossa_Ovalis A.1	Fossa ovalis	Solid	None	Not used
Left_Atrium A.1	Left atrium	Solid	DC3D4	Electrical, Mechanical
			C3D4
			SFM3D3
Mitral_Valve A.1	Mitral valve	Solid	C3D4	Mechanical
Pulmonary_Trunk A.1	Pulmonary trunk	Surface	C3D4	Mechanical
			SFM3D3
Pulmonary_Valve A.1	Pulmonary valve	Surface	None	Not used
Right_Atrium A.1	Right atrium	Solid	DC3D4	Electrical, Mechanical
			C3D4
			SFM3D3
Superior_Vena_Cava A.1	Superior vena cava	Solid	C3D4	Mechanical
			SFM3D3
Tricuspid_Valve A.1	Tricuspid valve	Solid	C3D4	Mechanical
Vena_Cava_Valve A.1	Valve of the vena cava	Solid	None	Not used
Ventricles A.1	Left and right ventricles	Solid	DC3D4	Electrical, Mechanical
			C3D4
			SFM3D3