Abstract #3327
31 P MRI of human teeth with Nuclear Overhause Effect enhancement
Yi Sun 1 , Djaudat Idiyatullin 2 , Ole Brauckmann 3 , Donald R. Nixdorf 4 , Arno Kentgens 3 , Michael Garwood 2 , and Arend Heerschap 1
1
Radiology, Radboud University Nijmegen
Medical Centre, Nijmegen, Gelderland, Netherlands,
2
Center
for Magnetic Resonance Research, University of
Minnesota, MN, United States,
3
Institute
for Molecules and Materials, Radboud University
Nijmegen, Gelderland, Netherlands,
4
Department
of Diagnostic and Biological Sciences, University of
Minnesota, MN, United States
We demonstrate successful
31
P
MR imaging of human tooth in a reasonable measurement
time by BLAST and SWIFT sequences, clearly showing
anatomical features in particular dentin, enamel and
pulp regions. In agreement with the
31
P
content the enamel shows the highest and dentin the
lower intensity. Furthermore we show that a
1
H-
31
P
NOE enhancement of up to 20% can be obtained from
dentin, but less than 10% from enamel, in agreement with
the water/organic material content. These
31
P
MR imaging approaches can also be applied to other human
mineralized tissue, such as in the diagnosis of
osteoporosis.
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