论文信息 - Evaluation of MR acquisition strategies for MR based attenuation correction

Evaluation of MR acquisition strategies for MR based attenuation correction

The purpose of this study was to compare two different strategies of MR data acquisition for MR-based PET attenuation correction (MRAC). One of the leading causes of image variability in MR acquisition is the choice of transmit/receive radio-frequency coils. We use a PET/CT-MR tri-modality setup to evaluate the advantages and limitations of local and body coil MR data acquisition for the generation of PET attenuation maps by means of fully automatic image processing. This method has been tested retrospectively on data from clinical oncology patients referred for a PET/CT scan.

[1] S. Reeder,et al. Fat and water magnetic resonance imaging , 2010, Journal of magnetic resonance imaging : JMRI.

[2] Peter Börnert,et al. ISMRM workshop on fat–water separation: Insights, applications and progress in MRI , 2012, Magnetic resonance in medicine.

[3] Gudrun Wagenknecht,et al. Knowledge-based segmentation of attenuation-relevant regions of the head in T1-weighted MR images for attenuation correction in MR/PET systems , 2009, 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC).

[4] Ilja Bezrukov,et al. MRI-Based Attenuation Correction for Whole-Body PET/MRI: Quantitative Evaluation of Segmentation- and Atlas-Based Methods , 2011, The Journal of Nuclear Medicine.

[5] G. Delso,et al. PET–MR imaging using a tri-modality PET/CT–MR system with a dedicated shuttle in clinical routine , 2013, Magnetic Resonance Materials in Physics, Biology and Medicine.

[6] Bernhard Schölkopf,et al. MRI-Based Attenuation Correction for PET/MRI: A Novel Approach Combining Pattern Recognition and Atlas Registration , 2008, Journal of Nuclear Medicine.