Reproducibility Results Using 18F-FDG for Esophageal Lesions
Method | Parameter | Mean ± SD | 95% CI | LRL | 95% CI for LRL | URL | 95% CI for URL |
SUVmax | 1.8 ± 16.7 | −6.8 to 10.4 | −30.9 | −45.9 to −16 | 34.6 | 19.9–49.6 | |
FLAB | TV | 5 ± 13.3 | −1.8 to 11.9 | −21.1 | −33 to −9.1 | 31.1 | 19.2–43 |
SUVmean | 0 ± 15.6 | −8 to 8 | −30.5 | −44.4 to −16.6 | 30.5 | 16.5–44.4 | |
TGV | 5.1 ± 10.6 | −0.4 to 10.5 | −15.8 | −25.3 to −6.3 | 25.9 | 16.4–35.5 | |
FCM | TV | 0.4 ± 26.4 | −13.2 to 14 | −51.4 | −75.1 to −27.7 | 52.2 | 28.5–75.9 |
SUVmean | −7.8 ± 35.5 | −26 to 10.5 | −77.4 | −109.2 to −45.5 | 61.8 | 30–93.7 | |
TGV | −7.4 ± 30.2 | −22.9 to 8.2 | −66.6 | −93.7 to −39.5 | 51.9 | 24.8–78.9 | |
TSBR | TV | −19.4 ± 36 | −37.9 to −0.9 | −89.9 | −122.1 to −57.6 | 51.1 | 18.9–83.3 |
SUVmean | 6.3 ± 27.4 | −7.8 to 20.4 | −47.4 | −72 to −22.8 | 60.1 | 35.5–84.6 | |
TGV | −13 ± 28.2 | −27.5 to 1.5 | −68.2 | −93.4 to −42.9 | 42.2 | 17–67.4 | |
T42 | TV | 2.1 ± 36.1 | −16.5 to 20.7 | −68.7 | −101.2 to −36.3 | 72.9 | 40.5–105.3 |
SUVmean | −10.5 ± 30 | −25.9 to 5 | −69.3 | −96.2 to −42.4 | 48.4 | 21.5–75.3 | |
TGV | −8.4 ± 23.4 | −20.5 to 3.6 | −54.3 | −75.3 to −33.3 | 37.5 | 16.5–58.5 | |
T50 | TV | 0.9 ± 32.9 | −16 to 17.8 | −63.5 | −92.9 to −34 | 65.3 | 35.9–94.8 |
SUVmean | −10.5 ± 23 | −22.6 to 1.6 | −56.5 | −77.6 to −35.5 | 35.6 | 14.5–56.6 | |
TGV | −9.5 ± 23.1 | −21.4 to 2.4 | −54.9 | −75.6 to 34.1 | 35.8 | 15.1–56.6 |
LRL = lower reproducibility limit; URL = upper reproducibility limit.
Data are percentage differences between scan 2 and scan 1 measurements.