Marcel Prager1, Sabine Heiland2, Daniel Gareis3, Tim Hilgenfeld4, Martin Bendszus4, Chiara Gaudino4. 1. Division of Experimental Radiology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Department of Neuroradiology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany. Electronic address: marcel.prager@med.uni-heidelberg.de. 2. Division of Experimental Radiology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Department of Neuroradiology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany. 3. NORAS MRI Products GmbH, Leibnizstraße 4, 97204 Höchberg, Germany. 4. Department of Neuroradiology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
Abstract
PURPOSE: To assess the benefit of a dedicated surface coil to visualize dental structures in comparison to standard head/neck coil. METHODS: Measurements were performed using the standard head/neck coil and a dedicated array coil for dental MRI at 3 T. As MRI methods, we used a T1-weighted spin-echo sequence with and without spectral fat saturation, a T2-weighted turbo-spin-echo sequence and a 3-dimensional T2-weighted SPACE sequence. Measurements were performed in a phantom to examine sensitivity profiles. Then the signal gain in dental structures was examined in volunteers and in a patient. RESULTS: As expected for a surface coil, the signal gain of the dental coil was highest at the surface of the phantom and decreased with increasing distance to the coil; it was >120% even at a depth of 30 mm, measured from the centre of the coil. The signal gain within the pulp of the volunteers ranged between 236 and 413%. CONCLUSION: The dedicated array coil offers a significantly higher signal within the region of interest for dental MR imaging thus allowing for better depiction of pathologies within the periodontium and for delineation and tracking of the branches of the maxillary and mandibular nerves.
PURPOSE: To assess the benefit of a dedicated surface coil to visualize dental structures in comparison to standard head/neck coil. METHODS: Measurements were performed using the standard head/neck coil and a dedicated array coil for dental MRI at 3 T. As MRI methods, we used a T1-weighted spin-echo sequence with and without spectral fat saturation, a T2-weighted turbo-spin-echo sequence and a 3-dimensional T2-weighted SPACE sequence. Measurements were performed in a phantom to examine sensitivity profiles. Then the signal gain in dental structures was examined in volunteers and in a patient. RESULTS: As expected for a surface coil, the signal gain of the dental coil was highest at the surface of the phantom and decreased with increasing distance to the coil; it was >120% even at a depth of 30 mm, measured from the centre of the coil. The signal gain within the pulp of the volunteers ranged between 236 and 413%. CONCLUSION: The dedicated array coil offers a significantly higher signal within the region of interest for dental MR imaging thus allowing for better depiction of pathologies within the periodontium and for delineation and tracking of the branches of the maxillary and mandibular nerves.
Authors: Alexander Heil; Franz Sebastian Schwindling; Constanze Jelinek; Manuel Fischer; Marcel Prager; Eduardo Lazo Gonzalez; Martin Bendszus; Sabine Heiland; Tim Hilgenfeld Journal: Dentomaxillofac Radiol Date: 2017-11-03 Impact factor: 2.419
Authors: Alexander Juerchott; Christian Freudlsperger; Dorothea Weber; Johann M E Jende; Muhammad Abdullah Saleem; Sebastian Zingler; Christopher J Lux; Martin Bendszus; Sabine Heiland; Tim Hilgenfeld Journal: Eur Radiol Date: 2019-12-04 Impact factor: 5.315
Authors: Silwan Mendes; Carin A Rinne; Julia C Schmidt; Dorothea Dagassan-Berndt; Clemens Walter Journal: Clin Oral Investig Date: 2019-12-10 Impact factor: 3.573
Authors: Mousa Zidan; Franz S Schwindling; Alexander Juerchott; Johannes Mente; Holger Gehrig; Mathias Nittka; Zahra Hosseini; Johann M E Jende; Sabine Heiland; Martin Bendszus; Tim Hilgenfeld Journal: Clin Oral Investig Date: 2022-07-21 Impact factor: 3.606
Authors: Alexander Heil; Eduardo Lazo Gonzalez; Tim Hilgenfeld; Philipp Kickingereder; Martin Bendszus; Sabine Heiland; Ann-Kathrin Ozga; Andreas Sommer; Christopher J Lux; Sebastian Zingler Journal: PLoS One Date: 2017-03-23 Impact factor: 3.240
Authors: Alexander Juerchott; Thorsten Pfefferle; Christa Flechtenmacher; Johannes Mente; Martin Bendszus; Sabine Heiland; Tim Hilgenfeld Journal: Int J Oral Sci Date: 2018-05-17 Impact factor: 6.344