caa a22 4500 606186662 CHVBK 20210128100837.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00405-014-3385-8 doi (NATIONALLICENCE)springer-10.1007/s00405-014-3385-8 Automated and objective action coding of facial expressions in patients with acute facial palsy [Elektronische Daten] [Daniel Haase, Laura Minnigerode, Gerd Volk, Joachim Denzler, Orlando Guntinas-Lichius] Aim of the present observational single center study was to objectively assess facial function in patients with idiopathic facial palsy with a new computer-based system that automatically recognizes action units (AUs) defined by the Facial Action Coding System (FACS). Still photographs using posed facial expressions of 28 healthy subjects and of 299 patients with acute facial palsy were automatically analyzed for bilateral AU expression profiles. All palsies were graded with the House-Brackmann (HB) grading system and with the Stennert Index (SI). Changes of the AU profiles during follow-up were analyzed for 77 patients. The initial HB grading of all patients was 3.3±1.2. SI at rest was 1.86±1.3 and during motion 3.79±4.3. Healthy subjects showed a significant AU asymmetry score of 21±11% and there was no significant difference to patients (p=0.128). At initial examination of patients, the number of activated AUs was significantly lower on the paralyzed side than on the healthy side (p<0.0001). The final examination for patients took place 4±6months post baseline. The number of activated AUs and the ratio between affected and healthy side increased significantly between baseline and final examination (both p<0.0001). The asymmetry score decreased between baseline and final examination (p<0.0001). The number of activated AUs on the healthy side did not change significantly (p=0.779). Radical rethinking in facial grading is worthwhile: automated FACS delivers fast and objective global and regional data on facial motor function for use in clinical routine and clinical trials. Springer-Verlag Berlin Heidelberg, 2014 Facial nerve nationallicence Mimic muscles nationallicence Asymmetry nationallicence Facial Action Coding System nationallicence Grading nationallicence Palsy nationallicence Haase Daniel Department of Computer Science, Friedrich Schiller University, Jena, Germany aut Minnigerode Laura Department of Otorhinolaryngology, University Hospital Jena, Lessingstrasse 2, 07740, Jena, Germany aut Volk Gerd Department of Otorhinolaryngology, University Hospital Jena, Lessingstrasse 2, 07740, Jena, Germany aut Denzler Joachim Department of Computer Science, Friedrich Schiller University, Jena, Germany aut Guntinas-Lichius Orlando Department of Otorhinolaryngology, University Hospital Jena, Lessingstrasse 2, 07740, Jena, Germany aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/5(2015-05-01), 1259-1267 0937-4477 272:5<1259 2015 272 405 https://doi.org/10.1007/s00405-014-3385-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-3385-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Haase Daniel Department of Computer Science, Friedrich Schiller University, Jena, Germany aut NATIONALLICENCE 700 1- Minnigerode Laura Department of Otorhinolaryngology, University Hospital Jena, Lessingstrasse 2, 07740, Jena, Germany aut NATIONALLICENCE 700 1- Volk Gerd Department of Otorhinolaryngology, University Hospital Jena, Lessingstrasse 2, 07740, Jena, Germany aut NATIONALLICENCE 700 1- Denzler Joachim Department of Computer Science, Friedrich Schiller University, Jena, Germany aut NATIONALLICENCE 700 1- Guntinas-Lichius Orlando Department of Otorhinolaryngology, University Hospital Jena, Lessingstrasse 2, 07740, Jena, Germany aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/5(2015-05-01), 1259-1267 0937-4477 272:5<1259 2015 272 405