Table 3.
Comparison of Parameters for Perfusion Quantification between Benign and Gastrointestinal Stromal Tumors
| Parameters | Benign SETs (n=12)* | GISTs (n=32) | p-value |
|---|---|---|---|
| PE | 419.9 (128.0–1,049.1) | 860.2 (221.4–3497.7) | 0.511 |
| WiAUC | 1,730.5 (610.7–6,241.1) | 4,239.1 (949.3–14,802.5) | 0.299 |
| RT | 6.4 (5.1–9.2) | 7.3 (6.2–8.3) | 0.465 |
| mTTI | 30.3 (19.3–73.5) | 33.1 (21.8–58.6) | 0.860 |
| TTP | 14.9 (10.2–17.1) | 18.0 (14.9–690.0) | 0.029 |
| WiR | 102.2 (19.8–191.1) | 148.5 (45.4–690.0) | 0.972 |
| WiPI | 260.3 (80.9–652.5) | 540.5 (137.0–2,143.5) | 0.538 |
| WoAUC | 2,620.5 (979.3–9,800.6) | 6,880.9 (1,370.6–19,831.9) | 0.408 |
| WiWoAUC | 4,351.0 (1,590.0–15,997.0) | 11,424.5 (2,319.9–34,634.4) | 0.361 |
| FT | 9.4 (8.6–15.9) | 10.2 (8.5–13.8) | 0.867 |
| WoR | 50.7 (9.0–100.9) | 77.3 (20.4–445.6) | 0.549 |
| QOF | 64.0 (34.9–84.1) | 67.2 (46.5–78.9) | 0.924 |
Data are presented as median (interquartile range).
SETs, subepithelial tumors; GISTs, gastrointestinal stromal tumors; PE, peak enhancement; WiAUC, wash-in area under the curve; RT, rise time; mTTI, mean transit time; TTP, time to peak; WiR, wash-in rate; WiPI, wash-in perfusion index; WoAUC, wash-out area under the curve; Wi-WoAUC, wash-in/wash-out area under the curve; FT, fall time; WoR, wash-out rate; QOF, quality of fit.
*
Including leiomyoma (n=5), schwannoma (n=3), glomus tumor (n=2), ectopic pancreas (n=1), and paraganglioma (n=1).