Abstract #2453
CAIPIRINHA acceleration enables rapid high-spatial-resolution isotropic 3D SPACE of the knee: Comparison with conventional SPACE and 2D TSE
Esther Raithel 1 , Gaurav Thawait 2 , Shivani Ahlawat 2 , Shadpour Demehri 2 , Zhang Qiong 3 , and Jan Fritz 2
1
Siemens AG, Healthcare Sector, Erlangen,
Bavaria, Germany,
2
Russell
H. Morgan Department of Radiology and Radiological
Science, Johns Hopkins University School of Medicine,
Maryland, United States,
3
Siemens
AG, Guang Dong, China
While 2D TSE MRI is standard in musculoskeletal MRI,
similar performance was shown for 3D TSE-type sequences
(SPACE) before; however, long acquisition times may
limit its clinical use. In contrast to one-dimensional
acceleration, a 2x2 CAIPIRINHA pattern can yield
substantial acceleration of 3D data acquisition. We
demonstrate the implementation of a 4-fold CAIPIRINHA
acceleration pattern into a 3D SPACE sequence with a
resultant 50-60% decrease of the acquisition time when
compared to a standard 2-fold accelerated SPACE. A 5-min
CAIPIRINHA SPACE sequence can produce near identical
image quality in the knee as 11-min SPACE and 10-min
three plane 2D TSE sequences.
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