Sistema de Salut de Catalunya
Institut Català de la Salut
[Graves JS] Department of Neurosciences, University of California San Diego, San Diego, California, USA. [Ganzetti M, Dondelinger F, Lipsmeier F, Belachew S, Bernasconi C] F. Hoffmann-La Roche Ltd, Basel, Switzerland. [Montalban X] Servei de Neurologia-Neuroimmunologia, Centre d’Esclerosi Múltiple de Catalunya (CEMCAT), Barcelona, Spain. Vall d’Hebron Hospital Universitari, Barcelona, Spain
Vall d'Hebron Barcelona Hospital Campus
2023-02-21T11:01:18Z
2023-02-21T11:01:18Z
2023-02
Multiple sclerosis
Esclerosi múltiple
Esclerosis múltiple
Objective To validate the smartphone sensor-based Draw a Shape Test – a part of the Floodlight Proof-of-Concept app for remotely assessing multiple sclerosis-related upper extremity impairment by tracing six different shapes. Methods People with multiple sclerosis, classified functionally normal/abnormal via their Nine-Hole Peg Test time, and healthy controls participated in a 24-week, nonrandomized study. Spatial (trace accuracy), temporal (mean and variability in linear, angular, and radial drawing velocities, and dwell time ratio), and spatiotemporal features (trace celerity) were cross-sectionally analyzed for correlation with standard clinical and brain magnetic resonance imaging (normalized brain volume and total lesion volume) disease burden measures, and for capacity to differentiate people with multiple sclerosis from healthy controls. Results Data from 69 people with multiple sclerosis and 18 healthy controls were analyzed. Trace accuracy (all shapes), linear velocity variability (circle, figure-of-8, spiral shapes), and radial velocity variability (spiral shape) had a mostly fair/moderate-to-good correlation (|r| = 0.14–0.66) with all disease burden measures. Trace celerity also had mostly fair/moderate-to-good correlation (|r| = 0.18–0.41) with Nine-Hole Peg Test performance, cerebellar functional system score, and brain magnetic resonance imaging. Furthermore, partial correlation analysis related these results to motor impairment. People with multiple sclerosis showed greater drawing velocity variability, though slower mean velocity, than healthy controls. Linear velocity (spiral shape) and angular velocity (circle shape) potentially differentiate functionally normal people with multiple sclerosis from healthy controls. Interpretation The Draw a Shape Test objectively assesses upper extremity impairment and correlates with all disease burden measures, thus aiding multiple sclerosis-related upper extremity impairment characterization.
This research was funded by F. Hoffmann-La Roche Ltd, Basel, Switzerland.
Article
Published version
English
Esclerosi múltiple - Imatgeria per ressonància magnètica; Braços; Extremitats; DISEASES::Nervous System Diseases::Autoimmune Diseases of the Nervous System::Demyelinating Autoimmune Diseases, CNS::Multiple Sclerosis; Other subheadings::Other subheadings::Other subheadings::/diagnostic imaging; ANATOMY::Body Regions::Extremities::Upper Extremity; ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT::Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Imaging::Tomography::Magnetic Resonance Imaging; ENFERMEDADES::enfermedades del sistema nervioso::enfermedades autoinmunitarias del sistema nervioso::enfermedades autoinmunes desmielinizantes del SNC::esclerosis múltiple; Otros calificadores::Otros calificadores::Otros calificadores::/diagnóstico por imagen; ANATOMÍA::regiones corporales::extremidades::extremidad superior; TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS::diagnóstico::técnicas y procedimientos diagnósticos::diagnóstico por imagen::tomografía::imagen por resonancia magnética
Wiley
Annals of Clinical and Translational Neurology;10(2)
https://doi.org/10.1002/acn3.51705
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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