Related Experiment Video
Updated: May 29, 2026

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
Published on: March 12, 2021
Influence of individual torso geometry on inverse solution to 2 dipoles
Jana Svehlikova1, Jana Lenkova, Marie Turzova
1Institute of Measurement Science SAS, Bratislava, Slovakia. jana.svehlikova@savba.sk
Background:
The purpose of this study was to observe the influence of variety in individual torso geometries on the results of inverse solution to 2 dipoles.
Methods:
The inverse solution to 2 dipoles was computed from the measured data on 8 patients using either standard torso with various shapes and sizes of the heart and lungs in it or using various outer torso geometries with the same inhomogeneities. The vertical position of the heart relative to the fourth intercostal level was kept constant in all models. The results were compared with the reference solution computed in standard torso.
Results:
The inverse solution was influenced in 4 of 8 cases by changes of torso geometry and only in 1 of 8 cases by changes of internal inhomogeneities.
Conclusions:
The use of individual torso geometry with the knowledge of the true heart position is very important for correct inverse results.
Related Concept Videos
Electric Dipoles and Dipole Moment
Theoretically, studying electric dipoles leads to understanding why the resultant electric forces around us are weak. Since electric forces are strong, remnant net charges are rare. Hence, the interaction between dipoles helps us understand electrical interactions in...
Induced Electric Dipoles
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Space Trusses: Problem Solving
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
Molecular Geometry and Dipole Moments
Moments of Inertia: Problem Solving
Free-body Diagrams: Problem Solving
For example, consider a block with a mass of 10 kg released on an inclined plane at an angle of 30° to the horizontal, where the...

