An objective, markerless videosystem for staging facial palsy.
Facial palsy
Machine learning
Objective grading system
Smartphone
Subjective grading system
Videorecording
Journal
European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
ISSN: 1434-4726
Titre abrégé: Eur Arch Otorhinolaryngol
Pays: Germany
ID NLM: 9002937
Informations de publication
Date de publication:
Sep 2021
Sep 2021
Historique:
received:
20
11
2020
accepted:
04
02
2021
pubmed:
16
3
2021
medline:
5
8
2021
entrez:
15
3
2021
Statut:
ppublish
Résumé
To propose a new objective, video recording method for the classification of unilateral peripheral facial palsy (UPFP) that relies on mathematical algorithms allowing the software to recognize numerical points on the two sides of the face surface that would be indicative of facial nerve impairment without positioning of markers on the face. Patients with UPFP of different House-Brackmann (HB) degrees ranging from II to V were evaluated after video recording during two selected facial movements (forehead frowning and smiling) using a software trained to recognize the face points as numbers. Numerical parameters in millimeters were obtained as indicative values of the shifting of the face points, of the shift differences of the two face sides and the shifting ratio between the healthy (denominator) and the affected side (numerator), i.e., the asymmetry index for the two movements. For each HB grade, specific asymmetry index ranges were identified with a positive correlation for shift differences and negative correlation for asymmetry indexes. The use of the present objective system enabled the identification of numerical ranges of asymmetry between the healthy and the affected side that were consistent with the outcome from the subjective methods currently in use.
Identifiants
pubmed: 33721067
doi: 10.1007/s00405-021-06682-z
pii: 10.1007/s00405-021-06682-z
pmc: PMC8328901
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3541-3550Informations de copyright
© 2021. The Author(s).
Références
Eur Arch Otorhinolaryngol. 2019 Dec;276(12):3335-3343
pubmed: 31535292
Clin Biomech (Bristol, Avon). 2000 Dec;15(10):766-71
pubmed: 11050360
Otol Neurotol. 2017 Sep;38(8):1178-1185
pubmed: 28708795
J Orofac Orthop. 2007 Nov;68(6):477-90
pubmed: 18034288
Otolaryngol Head Neck Surg. 1985 Apr;93(2):146-7
pubmed: 3921901
Otolaryngol Head Neck Surg. 1998 Apr;118(4):545-50
pubmed: 9560110
Clin Otolaryngol. 2011 Aug;36(4):313-9
pubmed: 21554560
Braz J Otorhinolaryngol. 2012 Apr;78(2):41-51
pubmed: 22499369
Otol Neurotol. 2006 Oct;27(7):1023-9
pubmed: 17006354
Auris Nasus Larynx. 2015 Aug;42(4):275-83
pubmed: 25655983
Am J Otol. 2000 Jan;21(1):123-9
pubmed: 10651446
Am J Otolaryngol. 2008 Jan-Feb;29(1):51-7
pubmed: 18061833
Ann Otol Rhinol Laryngol. 1999 Mar;108(3):265-8
pubmed: 10086619
Sensors (Basel). 2015 Oct 21;15(10):26756-68
pubmed: 26506352
JAMA Facial Plast Surg. 2018 Jul 1;20(4):335-337
pubmed: 29543955
Otol Neurotol. 2010 Apr;31(3):486-91
pubmed: 20042993
Laryngoscope. 2002 Jul;112(7 Pt 1):1129-47
pubmed: 12169889
Plast Reconstr Surg. 1999 Dec;104(7):2032-9
pubmed: 11149765
Laryngoscope. 2010 May;120(5):1038-45
pubmed: 20422701
Int J Oral Maxillofac Surg. 2013 Jan;42(1):9-18
pubmed: 23218511
Acta Otolaryngol. 2019 May;139(5):456-460
pubmed: 30950676
J Formos Med Assoc. 2000 May;99(5):393-401
pubmed: 10870329