Abstract #1197
Imaging of the Knee using 3D Fast Spin Echo with Compressed Sensing
Scott A Reid 1 , Kevin F King 2 , David J Lomas 3 , Florine van der Wolf-de Lijster 3 , Lloyd Estkowski 2 , and Martin J Graves 3
1
GE Healthcare, Chalfont St Giles, United
Kingdom,
2
GE
Healthcare, Waukesha, Wisconsin, United States,
3
Radiology,
Addenbrooke's Hospital & University of Cambridge,
Cambridge, Cambridgeshire, United Kingdom
Multi-slice 2D FS PD sequence tends to be the sequence
of choice for PD Fat Sat of the knee due to the
relatively long scan times (5-6 minutes) and risk of
motion artefacts associated with 3D PD FS imaging
sequence. However a 3D sequence can offer an increase in
coverage as well as SNR. Here we developed a PD FS 3D
FSE sequence, which was modified to perform random CS
undersampling followed by a custom reconstruction
algorithm. In total 12 asymptomatic knees were imaged
using the standard 3D PD Fat Sat protocol compared to
the 3D PD Fat Sat with CS. The results showed that in
all 12 knees the CS sequence reduced the scan time by
50% as well as providing diagnostic image quality.
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