Table 3:

Diagnostic performance according of each observer regarding the detection of the simulated aneurysmal blebs

Contrast Material Concentration & Dose Mode	Observer							Mean Az
Contrast Material Concentration & Dose Mode	1	2	3	4	5	6	7
300 mgI/mL
Standard-dose mode of FPD system	0.93	0.91	0.89	0.92	0.91	0.92	0.94	0.92
Low-dose mode of FPD system	0.89	0.89	0.91	0.92	0.92	0.94	0.95	0.92
Conventional-dose mode of I.I.-TV system	0.92	0.91	0.86	0.98	0.87	0.95	0.90	0.91
150 mgI/mL
Standard-dose mode of FPD system	0.81	0.79	0.83	0.83	0.83	0.80	0.82	0.82
Low-dose mode of FPD system	0.83	0.79	0.85	0.82	0.83	0.85	0.84	0.83
Conventional-dose mode of I.I.-TV system	0.80	0.78	0.85	0.81	0.82	0.84	0.82	0.82
100 mgI/mL
Standard-dose mode of FPD system	0.84	0.88	0.87	0.80	0.93	0.87	0.80	0.86^*
Low-dose mode of FPD system	0.84	0.88	0.86	0.79	0.93	0.87	0.79	0.85^*
Conventional-dose mode of I.I.-TV system	0.67	0.55	0.54	0.57	0.55	0.54	0.52	0.56

Note:—Az indicates areas under the receiver operating characteristic curve; FPD, flat panel detector; I.I.-TV, image intensifier television.
* Significantly higher to I.I.-TV system (P < .01).