Dental MRI
Standard
Dental MRI : imaging of soft and solid components without ionizing radiation. / Hövener, Jan-Bernd; Zwick, Stefan; Leupold, Jochen; Eisenbeiβ, Anne-Katrin; Scheifele, Christian; Schellenberger, Frank; Hennig, Jürgen; Elverfeldt, Dominik V; Ludwig, Ute.
in: J MAGN RESON IMAGING, Jahrgang 36, Nr. 4, 15.02.2012, S. 841-6.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - Dental MRI
T2 - imaging of soft and solid components without ionizing radiation
AU - Hövener, Jan-Bernd
AU - Zwick, Stefan
AU - Leupold, Jochen
AU - Eisenbeiβ, Anne-Katrin
AU - Scheifele, Christian
AU - Schellenberger, Frank
AU - Hennig, Jürgen
AU - Elverfeldt, Dominik V
AU - Ludwig, Ute
N1 - Copyright © 2012 Wiley Periodicals, Inc.
PY - 2012/2/15
Y1 - 2012/2/15
N2 - PURPOSE: To evaluate the ability of conventional and ultra-short or zero echo time MRI for imaging of soft and solid dental components in and ex vivo.MATERIALS AND METHODS: Turbo spin echo (TSE), ultra-short echo time (UTE), and zero echo time (ZTE) MRI were performed on extracted (human and equine) teeth and in vivo using whole-body and small-bore MR systems at 3 T, 7T, and 9.4T, respectively.RESULTS: At an isotropic resolution of (600 μm)(3) , strong signal of soft-tissue, e.g., mucosa and nerves with excellent contrast was achieved using TSE at 3T in vivo. No signal, though, was obtained from solid components, e.g., teeth (due to short T(2) ). In contrast, dentin, cementum as well as enamel of extracted teeth were readily depicted using UTE and ZTE at a resolution of ≈ (150 μm)(3) at 7T and 9.4T. In particular, ZTE provided higher signal in enamel.CONCLUSION: As an alternative to X-ray based methods like cone-beam computed tomography (CT) or conventional CT, the presented results demonstrate the potential of ZTE and UTE MRI as a radiation-free imaging modality, delivering contrast of soft and solid components at the same time.
AB - PURPOSE: To evaluate the ability of conventional and ultra-short or zero echo time MRI for imaging of soft and solid dental components in and ex vivo.MATERIALS AND METHODS: Turbo spin echo (TSE), ultra-short echo time (UTE), and zero echo time (ZTE) MRI were performed on extracted (human and equine) teeth and in vivo using whole-body and small-bore MR systems at 3 T, 7T, and 9.4T, respectively.RESULTS: At an isotropic resolution of (600 μm)(3) , strong signal of soft-tissue, e.g., mucosa and nerves with excellent contrast was achieved using TSE at 3T in vivo. No signal, though, was obtained from solid components, e.g., teeth (due to short T(2) ). In contrast, dentin, cementum as well as enamel of extracted teeth were readily depicted using UTE and ZTE at a resolution of ≈ (150 μm)(3) at 7T and 9.4T. In particular, ZTE provided higher signal in enamel.CONCLUSION: As an alternative to X-ray based methods like cone-beam computed tomography (CT) or conventional CT, the presented results demonstrate the potential of ZTE and UTE MRI as a radiation-free imaging modality, delivering contrast of soft and solid components at the same time.
KW - Connective Tissue/pathology
KW - Humans
KW - Imaging, Three-Dimensional/methods
KW - Magnetic Resonance Imaging/methods
KW - Molar/pathology
KW - Reproducibility of Results
KW - Sensitivity and Specificity
KW - Tooth Diseases/pathology
U2 - 10.1002/jmri.23712
DO - 10.1002/jmri.23712
M3 - SCORING: Journal article
C2 - 22707436
VL - 36
SP - 841
EP - 846
JO - J MAGN RESON IMAGING
JF - J MAGN RESON IMAGING
SN - 1053-1807
IS - 4
ER -
