| Reader 1 | Reader 2 | ||||
---|---|---|---|---|---|---|
CTA | MRA | P | CTA | MRA | P | |
All segments | ||||||
 Sensitivity | 90.11 % (82/91) | 94.25 % (82/87) | 0.305 | 89.13 % (82/92) | 93.26 % (83/89) | 0.328 |
 Specificity | 96.55 % (84/87) | 96.70 % (88/91) | 0.955 | 96.51 % (83/86) | 97.75 % (87/89) | 0.622 |
 Accuracy | 93.26 % (166/178) | 95.51 % (170/178) | 0.357 | 92.70 % (165/178) | 95.51 % (170/178) | 0.261 |
Heavily calcified segments | ||||||
 Sensitivity | 74.19 % (23/31) | 95.83 % (23/24) | 0.031 | 76.67 % (23/30) | 95.83 % (23/24) | 0.049 |
 Specificity | 90.00 % (9/10) | 94.12 % (16/17) | 0.693 | 90.91 % (10/11) | 94.12 % (16/17) | 0.747 |
 Accuracy | 78.05 % (32/41) | 95.12 % (39/41) | 0.023 | 80.49 % (33/41) | 95.12 % (39/41) | 0.043 |