Magnetic resonance imaging of intraoral hard and soft tissues using an intraoral coil and FLASH sequences

European Radiology
Tabea FlüggeKatja Nelson

Abstract

To ascertain the feasibility of MRI as a non-ionizing protocol for routine dentomaxillofacial diagnostic imaging. Wireless coils were used for MRI of intraoral hard and soft tissues. FLASH MRI was applied in vivo with a mandible voxel size of 250 × 250 × 500 μm3, FOV of 64 × 64 × 28 mm3 and acquisition time of 3:57 min and with a maxilla voxel size of 350 μm3 and FOV of 34 cm3 in 6:40 min. Ex vivo imaging was performed in 4:38 min, with a resolution of 200 μm3 and FOV of 36.5 cm3. Cone beam (CB) CT of the mandible and subjects were acquired. MRI was compared to CBCT and histological sections. Deviations were calculated with intraclass correlation coefficient (ICC) and coefficient of variation (cv). A high congruence between CBCT, MRI and specimens was demonstrated. Hard and soft tissues including dental pulp, periodontium, gingiva, cancellous bone and mandibular canal contents were adequately displayed with MRI. Imaging of select intraoral tissues was achieved using custom MRI protocols with an easily applicable intraoral coil in a clinically acceptable acquisition time. Comparison with CBCT and histological sections helped demonstrate dimensional accuracy of the MR images. The course of the mandibular canal was accurately disp...Continue Reading

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Citations

May 27, 2016·The Journal of Physical Chemistry. B·Philipp RovedoJan-Bernd Hövener
Mar 30, 2016·Scientific Reports·Ute LudwigJan-Bernd Hövener
Sep 21, 2017·Clinical Oral Investigations·Julian BoldtOlga Tymofiyeva
Feb 7, 2019·Clinical Oral Investigations·Ana Elisa Colle KaulingJan-Frederik Güth
Jul 2, 2019·Clinical Oral Implants Research·Tim HilgenfeldFranz Sebastian Schwindling
Jun 27, 2020·Dento Maxillo Facial Radiology·Lauren BohnerMarcel Hanisch
Sep 10, 2020·Clinical Implant Dentistry and Related Research·Florian Andreas ProbstMonika Probst
Jul 30, 2018·International Journal of Legal Medicine·Jannick De TobelPatrick Werner Thevissen
Nov 30, 2018·Oral Radiology·Yoshiko ArijiKoichiro Iohara
Sep 19, 2019·Dento Maxillo Facial Radiology·Maximilian TimmeSebastian Bürklein
Aug 14, 2020·Clinical Oral Investigations·Christoph RoserAlexander Juerchott
Nov 18, 2020·Dento Maxillo Facial Radiology·Tabea FlüggeKatja Nelson
Dec 17, 2020·International Journal of Environmental Research and Public Health·Lauren BohnerMarcel Hanisch
Jun 16, 2018·Dental Clinics of North America·Husniye Demirturk KocasaracDonald R Nixdorf

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