Abstract #3426
Reliability of MR sequences used for attenuation correction in PET/MR
Mathias Lukas 1 , Anne Kluge 2 , Jorge Cabello 1 , Christine Preibisch 2,3 , and Stephan Nekolla 1
1
Department of Nuclear Medicine, Klinikum
rechts der Isar, TU Mnchen, Munich, Germany,
2
Department
of Neuroradiology, Klinikum rechts der Isar, TU Mnchen,
Munich, Germany,
3
Department
of Neurology, Klinikum rechts der Isar, TU Mnchen,
Munich, Germany
Attenuation correction (AC) in quantitative PET/MR is
affected by SNR and CNR of underlying MR sequences. In
this work, the quality of MR data currently used for
attenuation correction in PET (UTE, DIXON, MPRAGE) was
observed in-vivo under changing clinical conditions over
3 months to investigate the reliability and robustness
for in-house established MR based AC methods. In spite
of its semi quantitative character, all sequences were
found to be very invariant in SNR and CNR and can be
used without any concerns.
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