Parameter | High Grade (n = 16) | Low Grade (n = 20) | Benign (n = 13) | Control (n = 15) | F Score* | P Value* | ||||
---|---|---|---|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | Mean | SD | Mean | SD | |||
NAA/Cho | 0.65 | 0.30 | 0.66 | 0.27 | 1.12 | 0.59 | 1.35 | 0.14 | 16.520 | .000† |
NAA/Cr | 1.03 | 0.35 | 1.05 | 0.41 | 1.42 | 0.51 | 1.68 | 0.28 | 10.051 | .000† |
NAA/Cho + Cr | 0.39 | 0.16 | 0.39 | 0.14 | 0.61 | 0.25 | 0.75 | 0.01 | 18.406 | .000† |
Cho/Cr | 1.79 | 0.69 | 1.71 | 0.56 | 1.45 | 0.65 | 1.24 | 0.16 | 3.159 | .031‡ |
Lipid/Cr | 0.49 | 0.34 | 0.25 | 0.17 | 0.29 | 0.19 | 0.16 | 0.01 | 6.814 | .000§ |
Lactate/Cr | 0.36 | 0.21 | 0.22 | 0.22 | 0.01 | 0.14 | 0.00 | 0.00 | 13.589 | .000| |
Lactate/lipid | 0.93 | 0.84 | 0.78 | 0.74 | 0.18 | 0.43 | 0.00 | 0.00 | 8.292 | .000¶ |
Alanin/Cr | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.28 | 0.00 | 0.00 | 12.099 | .000# |
ADCT | 87.16 | 10.41 | 115.33 | 11.67 | 107.69 | 8.05 | 79.37 | 4.10 | 54.741 | .000** |
ADCPT | 148.56 | 30.86 | 167.18 | 32.82 | 94.23 | 29.23 | 79.37 | 4.10 | 38.774 | .000†† |
Note.—ADCT indicates calculated ADC values from tumoral area; ADCPT, calculated ADC values from peritumoral area; NS, no significance.
* F score and P values were obtained by using Tukey pairwise post hoc test.
† control > high-grade, control > low-grade P < .001; benign > low-grade, benign > high-grade P < .05; otherwise NS.
‡ high-grade > control P < .05; otherwise NS.
§ high-grade < control P < .001; high-grade > low-grade P < .05; otherwise NS.
| high-grade > benign, high-grade > control P < .001; low-grade > benign, low-grade > control P < .05; otherwise NS.
¶ high-grade > control P = .001; high-grade > benign, low-grade > benign, low-grade > control P < .05; otherwise NS.
# benign > high-grade, benign > low-grade, benign > control P < .001; otherwise NS.
** low-grade > high-grade, benign > high-grade, benign > control, low-grade > control P < .001; otherwise NS.
†† high-grade > benign, high-grade > control, low-grade > benign, low-grade > control P < .001; otherwise NS.