Visualisation of Parkinsonian, essential and physiological tremor planes in 3Dspace.

Publication date: Mar 23, 2020

Based on the fact that tremors display some distinct 3D spatial characteristics, we decided to visualise tremor planes in 3D space. We obtained 3-axial linear accelerometer signals of hand tremors from 58 patients with Parkinson’s disease (PD), 37 with isolated resting tremor (iRT), 75 with essential tremor (ET), and 44 healthy volunteers with physiological tremor (Ph). For each group analysis was done with subsequent spatial 3D regression of the input data i.e. along the x, y and z axes; the projected vector lengths in the individual (vertical transversal XY, vertical longitudinal XZ and horizontal YZ) reference frame planes and their angles. Most meaningful and statistically significant differences were found in the analyses of the 3D vector lengths. The tremor of the PD and the iRT group was oriented mainly in the horizontal YZ plane. The tremors of the patients with ET and Ph were oriented approximately in the midway between the all three referential planes with less tilt toward the vertical longitudinal XZ plane.

Open Access PDF

Jomb’ik, P., Spodniak, P., , Bah’yl, and Necp’al, J. Visualisation of Parkinsonian, essential and physiological tremor planes in 3Dspace. 24441. 2020 Physiol Res.

Concepts Keywords
Accelerometer Tremor
Essential Tremor Essential tremor
ET Vertical and horizontal
IRT Plane
Lengths Contents
Parkinsonian
Reference Frame
Regression
Tremor
Vector

Semantics

Type Source Name
disease MESH tremor
disease MESH essential tremor
drug DRUGBANK Coenzyme M
disease MESH neurological disorders
disease MESH diagnosis
disease MESH movement disorders
disease MESH bradykinesia
drug DRUGBANK Albendazole
drug DRUGBANK L-Tyrosine
disease MESH separation
disease MESH syndromes
disease MESH community

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