Yujia Li

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B(0) and B(1) field inhomogeneities may generate banding-like artifacts in T(1ρ)-weighted images and hence result in errors of T(1ρ) quantification. Several types of composite spin-lock pulses have been proposed to alleviate such artifacts. In this study, magnetization evolution with T(1ρ) and T(2ρ) relaxation by using these composite spin-lock pulses are(More)
T(1ρ) relaxation is traditionally described as a mono-exponential signal decay with spin-lock time. However, T(1ρ) quantification by fitting to the mono-exponential model can be substantially compromised in the presence of field inhomogeneities, especially for low spin-lock frequencies. The normal approach to address this issue involves the development of(More)
  • Yujia Li, Daniel Tarlow, Richard Zemel
  • 2013
This section provides the detailed proof of the equivalence between pattern potentials and RBMs. The high level idea of the proof is to treat each hidden variable in an RBM as encoding a pattern. We first introduce the definition of pattern potentials by Rother et al. in [2], a few necessary change of variable tricks, and two different ways to compose more(More)
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