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Abstract #1256

Compressed sensing acceleration of bone imaging using a 0.3 T open compact MRI for skeletal age assessment

Yasuhiko Terada 1 , Daiki Tamada 1 , Tomomi Uchiumi 1 , Keiichiro Ishi 1 , Katsumi Kose 1 , Taiki Nozaki 2 , Yasuhito Kaneko 2 , and Hiroshi Yoshioka 2

1 Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki, Japan, 2 Department of Radiological Sciences, University of California Irvine, Orange, CA, United States

Skeletal age of a child can be evaluated by MR images of bones in the left hand. The hand imaging for young subjects often suffers from motion artifacts. Shortening the scan time provides an effective solution. Compressed sensing (CS) is a promising technique, but an image is not highly compressive when the signal-to-noise ratio (SNR) is low, and the CS application to bone imaging using a low-field MRI remains a challenge. Here we explore the possibility of CS-based acceleration of bone imaging with the 0.3T open compact pediatric hand scanner. We further show the validity of CS-based skeletal examination.

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