Improved automatic identification of isolated rapid eye movement sleep behavior disorder with a 3D time-of-flight camera.
Eur J Neurol
; 30(8): 2206-2214, 2023 08.
Article
in En
| MEDLINE
| ID: mdl-37151137
ABSTRACT
BACKGROUND AND PURPOSE:
Automatic 3D video analysis of the lower body during rapid eye movement (REM) sleep has been recently proposed as a novel tool for identifying people with isolated REM sleep behavior disorder (iRBD), but, so far, it has not been validated on unseen subjects. This study aims at validating this technology in a large cohort and at improving its performances by also including an analysis of movements in the head, hands and upper body.METHODS:
Fifty-three people with iRBD and 128 people without RBD (of whom 89 had sleep disorders considered RBD differential diagnoses) were included in the study. An automatic algorithm identified movements from 3D videos during REM sleep in four regions of interest (ROIs) head, hands, upper body and lower body. The movements were divided into categories according to duration short (0.1-2 s), medium (2-15 s) and long (15-300 s). For each ROI and duration range, features were obtained from the identified movements. Logistic regression models using as predictors the features from one single ROI or a combination of ROIs were trained and tested in a 10-runs 10-fold cross-validation scheme on the task of differentiating people with iRBD from people without RBD.RESULTS:
The best differentiation was achieved using short movements in all four ROIs (test accuracy 0.866 ± 0.007, test F1 score = 0.783 ± 0.010). Single group analyses showed that people with iRBD were distinguished successfully from subjects with RBD differential diagnoses.CONCLUSIONS:
Automatic 3D video analysis might be implemented in clinical routine as a supportive screening tool for identifying people with RBD.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
REM Sleep Behavior Disorder
Type of study:
Diagnostic_studies
/
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
Eur J Neurol
Journal subject:
NEUROLOGIA
Year:
2023
Type:
Article
Affiliation country:
Austria