Muscle Nerve 2013 Jun 21;47(6):878-83. Epub 2013 Mar 21.
Department of Otorhinolaryngology, Jena University Hospital, Lessingstrasse 2, D-07740 Jena, Germany.
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Muscle Nerve 2014 Sep 5;50(3):358-65. Epub 2014 May 5.
Department of Otorhinolaryngology, Jena University Hospital, Lessingstrasse 2, D-07740, Jena, Germany; Facial Nerve Center, Jena University Hospital, Jena, Germany.
Introduction: In this study we introduce quantitative facial muscle ultrasound as a diagnostic tool for patients with chronic unilateral facial palsy.
Methods: Muscle area, thickness, and echo intensity of 6 facial muscles (frontalis, orbicularis oculi, orbicularis oris, depressor anguli oris, depressor labii inferioris, and mentalis) and of 2 chewing muscles (temporalis and masseter, as controls) were measured in 20 patients with chronic facial palsy.
Results: Aside from 1, all facial muscles were significantly smaller on the paralyzed side. Read More
Muscle Nerve 2013 Sep 27;48(3):375-80. Epub 2013 Jul 27.
Department of Neurology and Clinical Neurophysiology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
Introduction: In this study we describe a protocol for quantitative ultrasound of facial muscles (procerus, zygomaticus major, levator labii superior, depressor anguli oris, mentalis, orbicularis oris pars labialis, orbicularis oris pars marginalis).
Methods: Muscle thickness (MT) and echo intensity (EI) were measured in 12 healthy subjects and a myotonic dystrophy type 1 patient.
Results: MTs ranged from 0. Read More
Eur J Paediatr Neurol 2016 Jul 26;20(4):666-70. Epub 2016 Mar 26.
Department of Otorhinolaryngology and Facial Nerve Center, Jena University Hospital, Jena, Germany.
Background: Ultrasonography is a reliable, non-invasive and painless tool for quantitative assessment of the static and dynamic changes of the facial muscles in adult patients with facial palsy. Therefore it would also be worthwhile to establish the method for quantitative analysis of facial muscles in children with facial palsy to improve and expand the diagnostics for paediatric facial palsy.
Methods: Eight children, aged 1-18 years, with facial palsy of different aetiology were scanned and their ultrasound-images analysed. Read More
Muscle Nerve 2016 May 5;53(5):755-61. Epub 2016 Feb 5.
Department of Otorhinolaryngology, Jena University Hospital, Lessingstrasse 2, D-07740, Jena, Germany.
Introduction: In this study we correlated results of ultrasonographic muscle thickness and contractility with facial electromyography (EMG) in patients with unilateral peripheral acute or chronic facial palsy.
Methods: Two hundred twenty measurements of 4 facial muscles (frontalis, orbicularis oculi, zygomaticus, and orbicularis oris) were performed in 44 patients.
Results: Facial muscle thickness at rest and during muscle contraction correlated best with EMG insertional activity, and facial muscle contractility correlated with EMG voluntary activity. Read More