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      Huber function based reconstruction in accelerated phase-cycled bSSFP acquisitions for increased detection performance

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      Author
      Ilıcak, Efe
      Çukur, Tolga
      Date
      2017
      Source Title
      Proceedings of the IEEE 25th Signal Processing and Communications Applications Conference, SIU 2017
      Publisher
      IEEE
      Language
      Turkish
      Type
      Conference Paper
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      Abstract
      Balanced steady-state free precession imaging suffers from irrecoverable signal losses, called banding artifacts. A common way to alleviate banding artifacts without sacrificing scan-efficiency is to use multiple-acquisition methods that combine phase-cycled images. However, soft thresholding applications used during the recovery can reduce the detection performance and image quality. In this study, a reconstruction strategy that applies Huber function to increase detection sensitivity on small coefficients is evaluated. This strategy is compared with conventional methods in terms of peak signal to noise ratio and structural similarity index.
      Keywords
      Banding artifact
      BSSFP
      Compressed sensing
      Signal to noise ratio
      Detection sensitivity
      Peak signal to noise ratio
      Steady state free precessions
      Structural similarity indices
      Permalink
      http://hdl.handle.net/11693/37595
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/SIU.2017.7960339
      Collections
      • Aysel Sabuncu Brain Research Center (BAM) 207
      • Department of Electrical and Electronics Engineering 3657
      • National Magnetic Resonance Research Center (UMRAM) 213
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