*2.13. Data Analysis*

For quantification of CT and PAI data, contrast to noise ratios (CNR = (SI0 − SI1/σ(noise)) were calculated. Statistical analyses were executed on the quantitative data using a paired *t*-test where the degree of significance is indicated with \* *p* < 0.05; \*\* *p* < 0.01; \*\*\* *p* < 0.001.
