Table 3 Absorbed dose metrics MAD, D50, D70 (Gy/GBq) and V120 (%) compared between simulation (99mTc-MAA) and therapy (90Y) for TL divided by tumoral volume
Segment | Metric | 99mTc-MAA | 90Y | Pearson's r correlation | Relative difference (%) Mean [range] |
|---|---|---|---|---|---|
TL ≤ 200 ml (n = 25) | MAD (Gy/GBq) | 116.09 ± 101.75 | 90.23 ± 65.95 | 0.95 (P < .001) | 28.27 [− 47.32–170.38] |
D50 (Gy/GBq) | 98.36 ± 77.36 | 85.08 ± 66.31 | 0.95 (P < .001) | 19.30 [− 51.72–203.41] | |
D70 (Gy/GBq) | 79.17 ± 72.02 | 69.39 ± 54.67 | 0.95 (P < .001) | 9.86 [− 58.99–110.75] | |
V120 (%) | 34.72 ± 25.28 | 30.16 ± 23.48 | 0.90 (P < .001) | – | |
TL > 200 ml (n = 39) | MAD (Gy/GBq) | 54.91 ± 31.71 | 43.84 ± 23.71 | 0.91 (P < .001) | 23.70 [− 31.90–125.64] |
D50 (Gy/GBq) | 44.06 ± 28.39 | 39.98 ± 23.09 | 0.90 (P < .001) | 8.80 [− 63.17–98.48] | |
D70 (Gy/GBq) | 28.17 ± 19.50 | 30.20 ± 18.54 | 0.86 (P < .001) | − 7.00 [− 78.95–78.14] | |
V120 (%) | 15.88 ± 11.35 | 12.16 ± 10.88 | 0.71 (P < .001) | – |