Abstract #1475
Multi-stage three-dimensional UTE lung imaging by image-based self-gating
Marta Tibiletti 1 , Jan Paul 2 , Andrea Bianchi 3 , Stefan Wundrak 2 , Wolfgang Rottbauer 2 , Detlef Stiller 3 , and Volker Rasche 1,2
1
Core Facility Small Animal MRI, Ulm
University, Ulm, Baden-Wrttemberg, Germany,
2
Internal
Medicine II, University Hospital Ulm, Ulm,
Baden-Wrttemberg, Germany,
3
Target
Discovery Research, In-vivo imaging laboratory,
Boehringer Ingelheim Pharma GmbH & Co. KG,
Baden-Wrttemberg, Germany
In this work we combine image-based self-gating (img-SG)
with ultra-short TE (UTE) 3D acquisition for lung
imaging to allow effective respiratory gating during
free breathing. The proposed method is also compared
with k-space center self-gating (DC-SG). Successful
retrospective extraction of respiratory signal from low
definition, high temporal resolution images was
obtained. While DC-SG signals requires to be strongly
band-pass filtered which results in a sinusoidal shaped
signal, img-SG permits direct visualization of the
respiratory movement and therefore provides better
outcome.
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