Parameter | Cutoff value | n | GR/PR | PPV (%) | NPV (%) | Accuracy (%) |
---|---|---|---|---|---|---|
SUV2 | ≤2 | 7 | 7/0 | 100 | 59 | 63 |
≤3 | 19 | 15/4 | 79 | 65 | 69 | |
≤4 | 29 | 23/6 | 79 | 76 | 77 | |
≤5 | 40 | 31/9 | 78 | 93 | 84 | |
≤6 | 46 | 31/15 | 67 | 92 | 76 | |
≤7 | 52 | 33/19 | 63 | 100 | 73 | |
SCR | ≤0.3 | 8 | 7/1 | 88 | 58 | 61 |
≤0.4 | 16 | 14/2 | 88 | 65 | 70 | |
≤0.5 | 26 | 21/5 | 81 | 73 | 76 | |
≤0.6 | 35 | 26/9 | 74 | 80 | 77 | |
≤0.7 | 47 | 30/17 | 64 | 87 | 71 | |
≤0.8 | 50 | 30/20 | 60 | 85 | 67 | |
VCR | ≤0.8 | 16 | 10/6 | 63 | 57 | 59 |
≤1.0 | 29 | 22/7 | 76 | 73 | 74 | |
≤1.2 | 46 | 28/18 | 61 | 79 | 67 | |
MVCR | ≤0.2 | 8 | 7/1 | 88 | 58 | 61 |
≤0.4 | 19 | 16/3 | 84 | 67 | 71 | |
≤0.6 | 34 | 28/6 | 82 | 86 | 84 | |
≤0.8 | 47 | 32/15 | 68 | 96 | 77 | |
≤1.0 | 52 | 32/20 | 62 | 94 | 70 |
GR = good responder; PR = poor responder; PPV = positive predictive value; NPV = negative predictive value; SCR = SUV2/SUV1; VCR = tumor volume after chemotherapy/tumor volume before chemotherapy; MVCR = SCR × VCR.