Lead field validation benchmark

Module: benchmarks.bidomain.TBunnyC2.run

Section author: Gernot Plank <gernot.plank@medunigraz.at>

Model introduction

The model can be used either with all four chambers or as a biventricular model.

../../_images/bathloading_setup.png

Fig. 28 The setup uses a regular tetrahedral FE model, representing a 3-D slab of myocardial tissue with dimensions 1.50cm x 0.01cm x 1.00 cm (l,w,h) in the x-, y, and z-directions stimulated at the left front side. A conductive bath is attached along the +y and -y faces of the wedge, thus forming a tissue bath interface along which bath loading effects will occur.

2-Chamber configuration

The 2-Chamber configuration is selected using the input parameter --geometry 2C.

Sinus activation

Wavefront propagation is initiated at the His bundle by the input parameter --purkStim His. We use a normal His-Purkinje system (HPS) which is selected through --purkinje normal. As we are only interested in the sinus activation we turn of any stimulation which would trigger additional activations. This is achieved by setting --stimulus none.

./run_ep_v2.py --geometry 2C --purkStim His --purkinje normal --duration 50 \
               --propagation R-E- --stimulus none --ID 2C_His_sinus_activation --visualize

Note

The 4C model in its current incarnation is only a baseline model for technical testing. Any capabilities in terms of more useful stimulation protocols must be added.

Tests

tbc2_mono

Tags: SHORT PARALLEL

Checks:

  • Compare against stored reference: max_error(vm.igb.gz)

tbc2_mono_transiso

Tags: SHORT PARALLEL

Checks:

  • Compare against stored reference: max_error(vm.igb.gz)

tbc2_bidm

Tags: MEDIUM PARALLEL

Checks:

  • Compare against stored reference: max_error(vm.igb.gz)
  • Compare against stored reference: max_error(phie.igb.gz)

tbc2_bidm_field

Tags: MEDIUM PARALLEL

Checks:

  • Compare against stored reference: max_error(vm.igb.gz)
  • Compare against stored reference: max_error(phie.igb.gz)