Table 3.
Dice score for different spectral results at different heart rates, acquisition modes, and cardiac phases.
Spectral result | Heart rate (bpm) | Dice score | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Flash | Sequence | Spiral | |||||||||||
35% | 70% | 35% | 70% | 35% | 70% | ||||||||
Mean | stdev | Mean | stdev | Mean | stdev | Mean | stdev | Mean | stdev | Mean | stdev | ||
VMI 50 keV | 0 | 0.81 | 0.05 | – | – | 0.74 | 0.12 | – | – | 0.75 | 0.02 | – | – |
60 | 0.84 | 0.05 | 0.68 | 0.10 | 0.78 | 0.11 | 0.79 | 0.09 | 0.79 | 0.04 | 0.88 | 0.05 | |
70 | 0.88 | 0.08 | 0.75 | 0.03 | 0.72 | 0.10 | 0.83 | 0.09 | 0.75 | 0.03 | 0.88 | 0.06 | |
80 | 0.72 | 0.01 | 0.85 | 0.03 | 0.78 | 0.08 | 0.82 | 0.04 | 0.88 | 0.05 | 0.78 | 0.06 | |
100 | 0.88 | 0.05 | 0.83 | 0.06 | 0.69 | 0.05 | 0.81 | 0.10 | 0.86 | 0.03 | 0.88 | 0.08 | |
VMI 70 keV | 0 | 0.81 | 0.05 | – | – | 0.88 | 0.06 | – | – | 0.73 | 0.07 | – | – |
60 | 0.89 | 0.05 | 0.69 | 0.15 | 0.67 | 0.08 | 0.85 | 0.07 | 0.78 | 0.10 | 0.82 | 0.06 | |
70 | 0.89 | 0.05 | 0.77 | 0.02 | 0.87 | 0.06 | 0.72 | 0.08 | 0.79 | 0.06 | 0.86 | 0.06 | |
80 | 0.70 | 0.05 | 0.91 | 0.03 | 0.67 | 0.09 | 0.72 | 0.12 | 0.90 | 0.05 | 0.84 | 0.07 | |
100 | 0.88 | 0.09 | 0.82 | 0.10 | 0.81 | 0.05 | 0.68 | 0.10 | 0.84 | 0.06 | 0.82 | 0.05 | |
VMI 150 keV | 0 | 0.73 | 0.04 | – | – | 0.82 | 0.04 | – | – | 0.64 | 0.06 | – | – |
60 | 0.77 | 0.09 | 0.58 | 0.15 | 0.61 | 0.06 | 0.75 | 0.04 | 0.85 | 0.06 | 0.70 | 0.06 | |
70 | 0.83 | 0.06 | 0.74 | 0.02 | 0.80 | 0.06 | 0.76 | 0.07 | 0.82 | 0.05 | 0.75 | 0.06 | |
80 | 0.57 | 0.09 | 0.88 | 0.07 | 0.64 | 0.08 | 0.66 | 0.08 | 0.78 | 0.10 | 0.82 | 0.06 | |
100 | 0.82 | 0.09 | 0.81 | 0.08 | 0.77 | 0.05 | 0.64 | 0.09 | 0.82 | 0.13 | 0.79 | 0.05 | |
Iodine density | 0 | 0.78 | 0.06 | – | – | 0.67 | 0.07 | – | – | 0.76 | 0.04 | – | – |
60 | 0.81 | 0.03 | 0.72 | 0.09 | 0.77 | 0.06 | 0.75 | 0.16 | 0.82 | 0.07 | 0.87 | 0.04 | |
70 | 0.89 | 0.06 | 0.79 | 0.04 | 0.82 | 0.09 | 0.81 | 0.04 | 0.76 | 0.03 | 0.84 | 0.03 | |
80 | 0.70 | 0.06 | 0.85 | 0.03 | 0.79 | 0.04 | 0.83 | 0.05 | 0.83 | 0.04 | 0.77 | 0.03 | |
100 | 0.85 | 0.04 | 0.86 | 0.07 | 0.72 | 0.07 | 0.84 | 0.07 | 0.81 | 0.03 | 0.83 | 0.07 |