Table 2.
Full width half max for different spectral results at varying heart rates, cardiac phase, and acquisition modes.
Spectral result | Heart rate (bpm) | FWHM (mm) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2.40 | 0.18 | – | – | 2.25 | 0.09 | – | – | 2.23 | 0.11 | – | – |
60 | 2.34 | 0.14 | 2.62 | 0.12 | 2.35 | 0.13 | 2.54 | 0.16 | 2.50 | 0.17 | 2.49 | 0.05 | |
70 | 2.39 | 0.08 | 2.42 | 0.12 | 2.86 | 0.10 | 2.57 | 0.07 | 2.38 | 0.06 | 2.47 | 0.12 | |
80 | 2.55 | 0.15 | 2.39 | 0.30 | 2.44 | 0.11 | 2.49 | 0.16 | 2.38 | 0.10 | 2.56 | 0.26 | |
100 | 2.47 | 0.19 | 2.42 | 0.10 | 2.07 | 0.22 | 2.53 | 0.12 | 2.36 | 0.17 | 2.40 | 0.17 | |
VMI 70 keV | 0 | 2.29 | 0.16 | – | – | 2.25 | 0.14 | – | – | 2.20 | 0.07 | – | – |
60 | 2.23 | 0.08 | 2.30 | 0.05 | 2.17 | 0.07 | 2.35 | 0.06 | 2.31 | 0.09 | 2.32 | 0.09 | |
70 | 2.17 | 0.10 | 2.37 | 0.09 | 2.63 | 0.23 | 2.33 | 0.03 | 2.21 | 0.12 | 2.36 | 0.15 | |
80 | 2.35 | 0.07 | 2.26 | 0.27 | 2.30 | 0.09 | 2.22 | 0.09 | 2.36 | 0.08 | 2.38 | 0.11 | |
100 | 2.26 | 0.07 | 2.24 | 0.12 | 2.06 | 0.11 | 2.32 | 0.08 | 2.31 | 0.14 | 2.25 | 0.07 | |
VMI 150 keV | 0 | 1.98 | 0.26 | – | – | 2.02 | 0.19 | – | – | 2.03 | 0.12 | – | – |
60 | 1.79 | 0.25 | 1.70 | 0.16 | 1.67 | 0.08 | 1.79 | 0.29 | 1.95 | 0.12 | 1.76 | 0.10 | |
70 | 1.77 | 0.09 | 1.84 | 0.19 | 1.84 | 0.21 | 1.84 | 0.09 | 1.93 | 0.05 | 1.89 | 0.24 | |
80 | 1.72 | 0.10 | 1.77 | 0.25 | 1.72 | 0.15 | 1.60 | 0.13 | 2.04 | 0.23 | 1.77 | 0.20 | |
100 | 1.83 | 0.08 | 1.75 | 0.12 | 1.83 | 0.14 | 1.60 | 0.17 | 1.86 | 0.24 | 1.84 | 0.34 | |
Iodine density | 0 | 2.57 | 0.20 | – | – | 2.35 | 0.08 | – | – | 2.32 | 0.12 | – | – |
60 | 2.45 | 0.21 | 2.93 | 0.12 | 2.62 | 0.07 | 2.66 | 0.16 | 2.67 | 0.16 | 2.64 | 0.03 | |
70 | 2.55 | 0.08 | 2.55 | 0.09 | 3.08 | 0.04 | 2.86 | 0.06 | 2.53 | 0.06 | 2.61 | 0.11 | |
80 | 2.69 | 0.13 | 2.71 | 0.20 | 2.55 | 0.08 | 2.62 | 0.16 | 2.48 | 0.10 | 2.83 | 0.32 | |
100 | 2.83 | 0.28 | 2.67 | 0.13 | 2.24 | 0.22 | 2.77 | 0.08 | 2.43 | 0.13 | 2.51 | 0.22 |