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Depicting the pterygopalatine ganglion on 3 Tesla magnetic resonance images

Bratbak, DF; Folvik, M; Nordgård, S; Stovner, LJ; Dodick, DW; Matharu, M; Tronvik, E; (2018) Depicting the pterygopalatine ganglion on 3 Tesla magnetic resonance images. Surgical and Radiologic Anatomy , 40 (6) pp. 689-695. 10.1007/s00276-017-1960-6. Green open access

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Abstract

PURPOSE: The pterygopalatine ganglion has yet not been identified on medical images in living humans. The primary aim of this study was to evaluate whether the pterygopalatine ganglion could be identified on 3 T MR imaging. METHODS: This study was performed on medical images of 20 Caucasian subjects on both sides (n = 40 ganglia) with an exploratory design. 3 T MR images were assessed by two physicians for the presence and size of the pterygopalatine ganglion. The distance from the pterygopalatine ganglion to four bony landmarks was registered from fused MR and CT images. In an equivalence analysis, the distances were compared to those obtained in an anatomical cadaveric study serving as historical controls (n = 50). RESULTS: A structure assumed to be the pterygopalatine ganglion was identified on MR images in all patients on both sides by both physicians. The mean size was depth 2.1 ± 0.5 mm, width 4.2 ± 1.1 mm and height 5.1 ± 1.4 mm, which is in accordance with formerly published data. Equivalence of the measurements on MR images and the historical controls was established, suggesting that the structure identified on the MR images is the pterygopalatine ganglion. CONCLUSION: Our findings suggest that the pterygopalatine ganglion can be detected on 3 T MR images. Identification of the pterygopalatine ganglion may be important for image-guided interventions targeting the pterygopalatine ganglion, and has the potential to increase the efficacy, safety and reliability for these treatments.

Type: Article
Title: Depicting the pterygopalatine ganglion on 3 Tesla magnetic resonance images
Location: Germany
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/s00276-017-1960-6
Publisher version: https://doi.org/10.1007/s00276-017-1960-6
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Image guidance, MRI, Magnetic resonance, Pterygopalatine ganglion, Sphenopalatine ganglion, Surgical navigation
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Brain Repair and Rehabilitation
URI: https://discovery.ucl.ac.uk/id/eprint/10042555
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