Abstract #2930
In-vivo 37 Cl Magnetic Resonance Imaging at 7 Tesla
Anna Kollefrath 1 , Manuela Rsler 1 , Reiner Umathum 1 , and Armin M. Nagel 1
1
Medical Physics in Radiology, German Cancer
Research Center (DKFZ), Heidelberg, Germany
With a customer made solenoid coil
37
Cl
imaging at a 7T whole- body MRI system at a frequency of
24.3 MHz was performed although the natural abundance of
37
Cl
is lower than that of the for measurements preferred
35
Cl.
For phantoms with 0.9% sodium chloride solution and
different agar concentrations the relaxation times (T2
*
and
T1) were determined and compared to the relaxation times
of
35
Cl.
The relaxation times are longer than the ones of
35
Cl.
In-vivo imaging of a narcotized rat showed the
feasibility of MRI using the
37
Cl
isotope in comparison with
35
Cl
and showed high signal intensities.
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