A Comparative Study of the Uhrig Dynamic Decoupling (UDD) and CPMG Pulse Sequences

It has been suggested that the UDD sequence, originally developed to extend the lifetime of qubits in quantum computing, may be used as an imaging sequence to extend the coherence lifetime in tissues to elucidate different tissue structures. We performed phantom studies to investigate these claims. We find evidence of lifetime extension although the interpretation of the images is complicated by steady state effects i.e. banding. However, the sequence may elucidate three-dimensional structure near tissue boundaries as well enhancing fat-water contrast at large repetition times.

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