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第45卷第1期 朱美娣,许紫鹏,华玲玲,等. 基于B 超特征构建外侧象限乳腺癌腋窝淋巴结转移列线图预测
2025年1月 模型[J]. 南京医科大学学报(自然科学版),2025,45(1):13-21 · 17 ·
表3 训练集和验证集乳腺肿瘤超声特征比较
Table 3 Comparison of breast tumor B⁃ultrasound characteristics between the training and validation datasets
Characterisitic Training set(n=63) Validation set(n=64) P
Age(x ± s) 60.97 ± 10.88 60.81 ± 13.62 0.943
Growth pattern[n(%)] 0.722
Vertical 6(9.52)0, 4(6.25)00
Horizontal 57(90.48)0, 60(93.75)00
Tumor diameter[mm,M(P25,P75)] 22.0(15.0,28.5) 22.0(16.0,30.0) 0.935
Echo[n(%)] 0.217
Low 62(98.41)0, 59(92.19)00
High 1(1.59)0, 5(7.81)00
Internal echo[n(%)] 0.515
Homogeneity 44(69.84)0, 48(75)0000.
Heterogeneity 19(30.16)0, 16(25)0000.
Margin[n(%)] 0.773
Smooth 5(7.94)0, 6(9.38)00
Unsmooth 58(92.06)0, 58(90.62)00
Form[n(%)] 0.478
Regular 8(12.70), 11(17.19)00
Irregular 55(87.30)0, 53(82.81)00
Spiculated margins[n(%)] 0.660
No 31(49.21)0, 29(45.31)00
Yes 32(50.79)0, 35(54.69)00
Corner edge[n(%)] 0.793
No 49(77.78)0, 51(79.69)00
Yes 14(22.22)0, 13(20.31)00
Hyperechoic halo[n(%)] 0.263
No 57(90.48)0, 62(96.88)00
Yes 6(9.52)0, 2(3.12)00
Rear echo attenuation[n(%)] 0.017
No 50(79.37)0, 60(93.75)00
Yes 13(20.63)0, 4(6.25)00
Calcification[n(%)] 0.533
No 29(46.03)0, 33(51.56)00
Yes 34(53.97)0, 31(48.44)00
Blood suppl[n(%)] 0.832
Less/Moderate 54(85.71)0, 54(84.38)00
Abundant 9(14.29), 10(15.62)00
表4 训练集和验证集腋窝淋巴结超声特征比较
Table 4 Comparison of ultrasound features of axillary lymph nodes between the training and validation datasets[n(%)]
Training Validation Training Validation
Ultrasound characteristic set(n=63) set(n=64) P Ultrasound characteristic set(n=63) set(n=64) P
Lymphatic metastasis 0.521 Cortical thickness 0.864
No 38(60.32) 35(54.69) Normal 50(79.37) 50(78.12)
Yes 25(39.68) 29(45.31) Thicken 13(20.63) 14(21.88)
Lymph node morphology 0.761 Lymphatic hilum structure 0.478
Regular 58(92.06) 59(92.19) Clear 55(87.30) 53(82.81)
Irregular 05(7.94) 05(7.81) Unclear 08(12.70) 11(17.19)
Lymph node growth pattern 0.496 Blood suppl 0.761
Vertical 01(1.59) 00(0) Less/Moderate 59(93.65) 58(90.62)
Horizontal 62(98.41) 64(100.0) Abundant 04(6.35) 06(9.38)
Echoes inside lymph nodes 0.336
Homogeneity 60(95.24) 57(89.06)
Inhomogeneity 03(4.76) 07(10.94)

