Table 1 CNR values for unfiltered, KES and conventional temporal subtraction images between regions A1 and B1 versus background region in Fig. 2. The weighted average was calculated for the four time points named in the table.
From: Dynamic K-edge Subtraction Fluoroscopy at a Compact Inverse-Compton Synchrotron X-ray Source
CNR(A1,B1) | 16.43 s | 32.80 s | 49.17 s | 65.54 s | weighted average |
unfiltered | 10.5 ± 1.8 | 10.8 ± 1.9 | 14.4 ± 2.2 | 13.8 ± 2.0 | 12.1 ± 1.0 |
K-edge subtraction | 36.9 ± 9.4 | 32.0 ± 8.3 | 41.4 ± 9.6 | 37.9 ± 6.8 | 36.9 ± 4.1 |
temporal subtraction | 27.4 ± 7.9 | 25.2 ± 9.3 | 36.4 ± 10.1 | 33.3 ± 7.9 | 30.4 ± 4.3 |
