TABLE 4.
Comparison of the noMag and wMag methods for variety of field arrangements for both the lung and bowel phantom
Heterogeneity comparison | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
noMag method | wMag method | |||||||||||
Location | AP‐L | 2Fd‐L | 4Fd‐L | AP‐B | 2Fd‐B | 4Fd‐B | AP‐L | 2Fd‐L | 4Fd‐L | AP‐B | 2Fd‐B | 4Fd‐B |
O | 3.96% | 3.98% | 4.76% | 1.67% | 1.48% | 1.03% | 4.18% | 3.96% | 4.76% | 1.65% | 1.48% | 0.87% |
A | N/A | –3.47% | –2.86% | N/A | 0.94% | 0.60% | N/A | –3.40% | –2.36% | N/A | 1.04% | 1.05% |
B | N/A | N/A | N/A | N/A | 1.80% | –2.86% | N/A | N/A | N/A | N/A | 1.87% | –0.17% |
C | N/A | N/A | N/A | N/A | 1.12% | –2.82% | N/A | N/A | N/A | N/A | 1.16% | –0.09% |
D | N/A | –3.04% | –2.42% | N/A | 0.60% | 0.33% | N/A | –3.04% | –1.97% | N/A | 0.64% | 0.76% |
E | 0.03% | N/A | –2.82% | 0.58% | N/A | 3.24% | 0.15% | N/A | –2.16% | 0.58% | N/A | 3.63% |
F | N/A | N/A | N/A | 1.27% | N/A | –2.04% | N/A | N/A | N/A | 1.26% | N/A | 0.36% |
G | N/A | N/A | N/A | 3.23% | N/A | –0.60% | N/A | N/A | N/A | 3.25% | N/A | 1.87% |
H | –8.47% | N/A | –4.87% | 1.69% | N/A | 1.25% | –8.46% | N/A | –4.27% | 1.67% | N/A | 1.64% |
Note: “‐L” denotes the lung phantom, whereas the “‐B” denotes the bowel phantom.