Figure 2 | Scientific Reports

Figure 2

From: Optimal Phased-Array Signal Combination For Polyunsaturated Fatty Acids Measurement In Breast Cancer Using Multiple Quantum Coherence MR Spectroscopy At 3T

Figure 2

Comparison of the combination algorithms on experimental PUFA spectra. SNR improvement for (a) excised breast tumour specimens, (b) healthy volunteers, and (c) patients. The box plot shows the median and interquartile range while the error bar shows the mean and standard deviation of SNR improvement from each algorithm. For WSVD, the improvement was negative for 5 data out of 17 for excised breast tumour specimens, 2 data out of 30 for healthy volunteers and 2 data out of 5 for patients. Each dot represents an individual measurement. For subfigures a and b, overlapping data points are displaced horizontally to aid visual interpretation. AOC = adaptively optimised combination. Nd-comb = noise decorrelation combination, WSVD = whitened singular value decomposition.

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