Abstract #3557
BOLD MRI of the Kidneys under water loading at 7 Tesla using parallel Transmission and RF Shimming of individual slices
Inge Brinkmann 1 , Niravkumar Darji 2 , Oliver Speck 2 , and Michael Bock 1
1
Radiology - Medical Physics, University
Medical Center Freiburg, Freiburg, Germany,
2
Otto
von Guericke University Magdeburg, Magdeburg, Germany
BOLD MRI of the kidneys has been proposed to determine
renal oxygenation through the measurement of R2* changes
during water loading. In this work we report first
preliminary results of renal BOLD MRI at 7T using a
dedicated parallel transmission coil setup. To increase
the B1+ homogeneity at kidney region the B1+ profile was
shimmed successfully by more than 30%. The measurements
were done with a multi-echo 2D FLASH sequence. The
experiments show strong changes of R2* in the renal
medulla and cortex both at baseline and during water
loading which facilitates the detection of the R2*
changes at 7T.
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