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Near-real time oculodynamic MRI: a feasibility study for evaluation of diplopia in comparison with clinical testing

Berg, Isabelle ; Palmowski-Wolfe, Anja ; Schwenzer-Zimmerer, Katja ; Kober, Cornelia ; Radue, Ernst-Wilhelm ; Zeilhofer, Hans-Florian ; Scheffler, Klaus ; Kunz, Christoph ; Buitrago-Tellez, Carlos

In: European Radiology, 2012, vol. 22, no. 2, p. 358-363

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    Titre
    • Near-real time oculodynamic MRI: a feasibility study for evaluation of diplopia in comparison with clinical testing
    Auteur
    • Berg, Isabelle. Hightech Research Center of Cranio-Maxillofacial Surgery and Dept. of Cranio-Maxillofacial Surgery, University Hospital Basel, Basel, Switzerland
    • Palmowski-Wolfe, Anja. Department of Ophthalmology, University of Basel, Basel, Switzerland
    • Schwenzer-Zimmerer, Katja. Hightech Research Center of Cranio-Maxillofacial Surgery and Dept. of Cranio-Maxillofacial Surgery, University Hospital Basel, Basel, Switzerland
    • Kober, Cornelia. Faculty of Life Sciences, HAW Hamburg, Hamburg, Germany
    • Radue, Ernst-Wilhelm. Department of Neuroradiology, University Hospital Basel, Basel, Switzerland
    • Zeilhofer, Hans-Florian. Hightech Research Center of Cranio-Maxillofacial Surgery and Dept. of Cranio-Maxillofacial Surgery, University Hospital Basel, Basel, Switzerland
    • Scheffler, Klaus. Division of Radiological Physics, University Hospital Basel, Basel, Switzerland
    • Kunz, Christoph. Hightech Research Center of Cranio-Maxillofacial Surgery and Dept. of Cranio-Maxillofacial Surgery, University Hospital Basel, Basel, Switzerland
    • Buitrago-Tellez, Carlos. Spital Zofingen AG, Institute of Radiology, Zofingen, Switzerland and University Hospital Basel, Hightech Research Center of Cranio-Maxillofacial Surgery, Mühlethalstr. 27, 4800, Zofingen, Switzerland
    Type de document
    • Postprint
    Identifiant OAI-PMH
    • oai:doc.rero.ch:322438
    Summary
    Objective: To demonstrate feasibility of near-real-time oculodynamic magnetic resonance imaging (od-MRI) in depicting extraocular muscles and correlate quantitatively the motion degree in comparison with clinical testing in patients with diplopia. Methods: In 30 od-MRIs eye movements were tracked in the horizontal and sagittal plane using a a TrueFISP sequence with high temporal resolution. Three physicians graded the visibility of extraocular muscles by a qualitative scale. In 12 cases, the maximal monocular excursions in the horizontal and vertical direction of both eyes were measured in od-MRIs and a clinical test and correlated by the Pearson test. Results: The medial and lateral rectus muscles were visible in the axial plane in 93% of the cases. The oblique, superior and inferior rectus muscles were overall only in 14% visible. Horizontal (p = 0,015) and vertical (p = 0,029) movements of the right eye and vertical movement of the left eye (p = 0,026) measured by od-MRI correlated positively to the clinical measurements. Conclusions: Od-MRI is a feasible technique. Visualization of the horizontal/vertical rectus muscles is better than for the superior/inferior oblique muscle. Od-MRI correlates well with clinical testing and may reproduce the extent of eye bulb motility and extraocular muscle structural or functional deteriorations. Key Points • Oculodynamic MRI technique helps clinicians to assess eye bulb motility disorders • MRI evaluation of eye movement provides functional information in cases of diplopia • Oculodynamic MRI reproduces excursion of extraocular muscles with good correlation with clinical testing • Dynamic MRI sequence supplements static orbital protocol for evaluation of motility disorders