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Abstract #1060

Fast 1 H-MRSI of the prostate with GOIA-sLASER localization and spiral acquisition

Isabell K. Steinseifer 1 , Bart Philips 1 , Borjan Gagoski 2 , Marnix C. Maas 1 , Elisabeth Weiland 3 , Tom W.J. Scheenen 1 , and Arend Heerschap 1

1 Radiology, Radboud University Medical Center, Nijmegen, Netherlands, 2 Fetal-Neonatal Neuroimaging & Developmental Science Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States, 3 MR Applications Development, Siemens AG, Healthcare Sector, Erlangen, Germany

Fast 1 H MRSI of the prostate was achieved with a semi-LASER sequence with GOIA-WURST(16,4) refocusing pulses and spiral k-space sampling. The application of these low RF power demanding adiabatic pulses reduces the specific absorption rate so that an endorectal coil can be used to receive signal. Together with a relative short echo time of 90ms, a high SNR can be obtained. This can be translated in a much lower acquisition time, which can be realized because of the flexibility of spiral k-space sampling. The new sequence facilitates routine acquisition of metabolic data for clinical purposes.

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