Table 1.
Summary of the comparison analysis between the two systems: clinical BCT and synchrotron radiation (SR) datasets (with smooth and sharp phase-retrieval (PhR) kernel).
| CNR | SNR | nNPS peak frequency (mm−1) | FWHM (mm) | MTF10% (lp/mm) | |
|---|---|---|---|---|---|
| Clinical BCT | 5.2 | 48 | 0.4 | 0.61 | 1.3 |
| SR smooth PhR | 2.3 (1 slice) | 105 | 0.9 | 0.16 | 5.0 |
| 3.0 (5 slices) | 135 | ||||
| SR sharp PhR | 1.2 (1 slice) | 55 | 1.4 | 0.12 | 6.7 |
| 1.7 (5 slices) | 76 |
The table reports the values for contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR) for the 4.76 mm diameter mass, the peak frequency of the normalized noise power spectrum (nNPS), full width at half maximum (FWHM) of the estimated point spread function (PSF) and modulation transfer function at 10% (MTF10%). CNR and SNR are measured by selecting 1 slice and the average of 5 slices, while the other values can be found in Supplementary Materials (Tab. S1).