表 1.
各项计划质量评估指标及其相应得分
Metrics for plan quality assessment and the corresponding scores
| Structure | Parameters | Volume or Dose (Gy) | Scores |
| V60 Gy (%) refers to the percentage of the volume exposed to a dose of 60 Gy; Min dose (Gy) refers to the minimum dose; Max dose (Gy) refers to the maximum dose; D1cc (Gy) refers to the dose received by 1 cm3 of the structure; D98% (Gy) refers to the dose received by 98% of the volume of the structure; GTV: Gross tumor volume; CTV: Clinical tumor volume; PGTV: Planning gross tumor volume; PCTV: Planning clinical tumor volume. | |||
| PGTV | V66Gy(%) | ≥2, ≤1, 0≤ | 2/4.8/8 |
| V60Gy(%) | ≥90, ≥95, ≥97 | 1/5.4/9 | |
| D98% (Gy) | ≥54, ≥58.8, ≥60 | 1/3/5 | |
| CI | 0-1 | 0/2 | |
| HI | 0-1 | 0/2 | |
| GTV | Min dose (Gy) | < 60, ≥60 | 0/5 |
| PCTV | V45Gy(%) | ≥90, ≥95, ≥97 | 1/5.4/9 |
| D98% (Gy) | ≥40.5, ≥42.75, ≥45 | 1/3/5 | |
| CI | 0-1 | 0/2 | |
| HI | 0-1 | 0/2 | |
| CTV | D98% (Gy) | < 42.75, ≥42.75 | 0/5 |
| Bladder | D35% (Gy) | ≤50, ≤45 | 6/10 |
| Rectum | D60% (Gy) | > 50, ≤45, ≤40 | 0/6/10 |
| Kidney | V18Gy(%) | > 40, ≤32, ≤20 | 0/3/5 |
| Spinal cord | Max dose (Gy) | > 44, ≤40, < 35 | 0.5/1.8/2 |
| Femoral head | D15%(Gy) | > 45, ≤35, ≤30 | 0/1.8/2 |
| D1cc(Gy) | > 60, ≤50, ≤45 | 0/0.6/1 | |
| Small intestine | V40Gy (cm3) | > 500, ≤300, < 250 | 0/1.2/2 |
| V30Gy (cm3) | > 150, ≤100, < 80 | 0/1.2/2 | |
| Colon | V40Gy (cm3) | > ≥500, ≤300, < 250 | 0/1.2/2 |
| V30Gy (cm3) | > 150, ≤100, < 80 | 0/1.2/2 | |