Home▸Medicine & Biophysics▸Defibrillation Field — 2D Cross-Section Simulator

Defibrillation Field — 2D Cross-Section Simulator

Interactive 2D simulator of the electric field a defibrillator shock drives through a transverse thoracic slice: place electrodes anterolateral or anteroposterior, set energy and transthoracic impedance, and see the sheet-conductor field reaching the myocardium against the defibrillation threshold.

Medicine & Biophysics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

This companion simulator models the same defibrillation physics as a genuinely two-dimensional problem: a single transverse slice of the thorax at heart level, treated as a homogeneous resistive sheet — the abstraction electrical impedance tomography (EIT) uses when it reconstructs conductivity from boundary current injections. Because current sources in an infinite 2D sheet obey a different Green's function than in 3D space, the field here falls off as 1/r instead of 1/r², a real and measurable difference from the volumetric model. Compare anterolateral and anteroposterior electrode placement, dial in delivered energy and transthoracic impedance, and watch the resulting field vectors and the field strength reaching the heart — checked against the same ~5 V/cm clinical defibrillation threshold.

⚙ Under the hood

Model the defibrillation shock as a genuinely 2D problem: a transverse thoracic slice treated as a resistive sheet, where the current-source field falls off as 1/r instead of the 3D model's 1/r². Compare anterolateral and anteroposterior electrode placement, set energy and transthoracic impedance, and check whether the field reaching the myocardium clears the defibrillation threshold.

defibrillationelectric fieldcardiologybioelectricitymedical physicsbiophysics2DEIT

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install