Validation of a new tool for automatic assessment of tremor frequency from video recordings

0359324 - ÚTIA 2012 RIV NL eng J - Článek v odborném periodiku
Uhríková, Z. - Šprdlík, Otakar - Hoskovcová, M. - Komárek, A. - Ulmanová, O. - Hlaváč, V. - Nugent, Ch. D. - Růžička, E.
Validation of a new tool for automatic assessment of tremor frequency from video recordings.
Journal of Neuroscience Methods. Roč. 198, č. 1 (2011), s. 110-113. ISSN 0165-0270. E-ISSN 1872-678X
Grant CEP: GA MŠMT(CZ) 1M0567
Výzkumný záměr: CEZ:AV0Z10750506
Klíčová slova: Tremor frequency * essential tremor * video analysis * Fourier transformation * accelerometry
Kód oboru RIV: BC - Teorie a systémy řízení
Impakt faktor: 1.980, rok: 2011
http://library.utia.cas.cz/separaty/2011/TR/sprdlik-0359324.pdf

We present a validation study for TremAn—a tool for automatic detection of tremor and measurement of its frequency from video recordings.To assess the validity of TremAn we designed a study consisting of tremor assessment from video,by accelerometry and by clinical evaluation using Fahn–Tolosa–Marin scale. 26 patients with essential tremor and 5 healthy volunteers underwent the examination in four standardized positions with focuson the hand tremor. Results showed that the frequencies of tremor measured with TremAn and with accelerometry are closely related, at taining agreement with lesst han 0.1 Hz difference in 80% and less than 0.5 Hz in 94% of measured samples. The reproducibility of frequency measurements using TremAn was comparable to the accelerometry, with the TremAn/accelerometry ratio of measurement error standard deviations equal to 0.99(95% confidence interval(0.84,1.17)).
Trvalý link: http://hdl.handle.net/11104/0197126