Robust identification of the cancer biomarker phosphocholine through partitioned envelopes in noisy magnetic resonance spectroscopic data by the non-parametric fast Padé transform
作者: Dževad BelkićKaren Belkić
作者单位: 1Karolinska Institute
2Karolinska University Hospital
3Claremont Graduate University
4University of Southern California
刊名: Journal of Mathematical Chemistry, 2017, Vol.55 (10), pp.2004-2047
来源数据库: Springer Journal
DOI: 10.1007/s10910-017-0807-z
关键词: Magnetic resonance spectroscopyMathematical optimizationFast Padé transformPartitioningBreast cancer diagnostics
英文摘要: The recently introduced concept of envelope partitioning for shape estimation within the fast Padé transform (FPT) is presently further explored and solidified. Earlier, noise-free time signals were used and the results were reported for a single model order K . Currently, partitioned envelopes are computed for several values of model orders K by employing noise-corrupted time signals of increasing standard deviations, \(\sigma =\) 0 . 0289 , 0 . 289 , 2 . 89 in units of root-mean-square of the noise-free time signal. Moreover, spectra averaging is exploited to stabilize shape estimation in face of sensitivity to changes in model order. The main goal of this study is to establish the robustness of the non-parametric FPT for reconstructions of partitioned average envelopes computed with...
原始语种摘要: The recently introduced concept of envelope partitioning for shape estimation within the fast Padé transform (FPT) is presently further explored and solidified. Earlier, noise-free time signals were used and the results were reported for a single model order K . Currently, partitioned envelopes are computed for several values of model orders K by employing noise-corrupted time signals of increasing standard deviations, \(\sigma =\) 0 . 0289 , 0 . 289 , 2 . 89 in units of root-mean-square of the noise-free time signal. Moreover, spectra averaging is exploited to stabilize shape estimation in face of sensitivity to changes in model order. The main goal of this study is to establish the robustness of the non-parametric FPT for reconstructions of partitioned average envelopes computed with...
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影响因子:1.226 (2012)

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关键词翻译
关键词翻译
  • parametric 子宫旁的
  • transform 变换
  • partitioned 修]分割[配,布,块,段,区
  • noisy 有噪声
  • resonance 共振
  • shape 形状
  • voxel 体元
  • partitioning 分块
  • spectral 谱的
  • phosphocholine 胆碱磷酸