title: Duplex-Doppler spectral analysis in the physiopathology of the temporomandibular joint.
abstract: We introduce a new method of analysis of the normal and abnormal behavior of the TMJ, using a duplex-doppler spectral analysis. The method consists in monitoring the joint movement by means of a study of the Fourier transformed signals, which give information on the velocity distribution of the condylo-meniscal complex during the opening and closing phases of the jaw. Using repeated sampling over short time intervals we get a detailed description of the motion which allows to discriminate the normal and abnormal action of the condylomeniscal complex. We are able to identify various physiopathological conditions, among which opening and/or closing clicks, complex locking conditions and anomalies related to an asymmetrical behavior during the operation cycle. Duplex-doppler spectral analysis is correlated to a clinical examination in order to define various classes of anomalies.
authors.affiliation: Dipartimento di Medicina Sperimentale, Università degli Studi di Roma La Sapienza, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Marini
authors.forename: G L
authors.initials: GL
authors.lastname: Odoardi
authors.forename: G
authors.initials: G
authors.lastname: Bolle
authors.forename: P
authors.initials: P
authors.lastname: Tartaglia
mesh_terms: D002358:Cartilage, Articular / Q000000981:diagnostic imaging / Q000503:physiopathology; D005583:Fourier Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008334:Mandible / Q000503:physiopathology; D008335:Mandibular Condyle / Q000000981:diagnostic imaging / Q000503:physiopathology; D009068:Movement; D012815:Signal Processing, Computer-Assisted; D013704:Temporomandibular Joint / Q000000981:diagnostic imaging* / Q000502:physiology*; D013705:Temporomandibular Joint Disorders / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D014463:Ultrasonography; D014741:Video Recording