Abstract #1051
Robust 3D 1H MRSI of the prostate without endorectal coil at 3T
Nassim Tayari 1 , Isabell K. Steinseifer 1 , Cai Xia Fu 2 , Elisabeth Weiland 3 , Jack J.A. van Asten 1 , Tom W.J. Scheenen 4 , Marnix C Maas 1 , and Arend Heerschap 1
1
Department of Radiology and Nuclear
Medicine, Radboud University Medical Center, Nijmegen,
Netherlands,
2
Siemens
Shenzhen Magnetic Resonance Ltd., China,
3
Siemens
Healthcare, Erlangen, Germany,
4
Department
of Radiology and Nuclear Medicine, Radboud university
medical center, Nijmegen, Netherlands
The use of an endorectal coil (ERC) in MR of the
prostate is time consuming and uncomfortable for
patients. In this work we demonstrate that robust 1H
MRSI of the prostate can be performed without ERC by a
semi-LASER sequence with GOIA-WURST(16,4) refocusing
pulses. This sequence has an excellent performance as
reflected by high citrate signals and minor lipid
contamination. Furthermore, acquisition times can be
shortened to 5 min (TR = 630 ms), which is clinically
valuable. For the detection of the choline signal, a TR
of about 900 ms is more favorable, to avoid too much
signal saturation.
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