2025 , Vol. 22 >Issue 06: 547 - 555
DOI: https://doi.org/10.3877/cma.j.issn.1672-6448.2025.06.008
基于高频超声与剪切波弹性成像评估继发性淋巴水肿患者术后疗效的初步研究
通信作者:
朱好辉,Email:zhh761126@163.comCopy editor: 汪荣
收稿日期: 2025-02-27
网络出版日期: 2025-08-01
基金资助
国家自然科学基金面上项目(82371980)
2021年度河南省卫生健康中青年学科带头人培育项目
2022年度河南省科技厅河南省科技攻关项目(SBGJ202102013)
版权
High-frequency ultrasound combined with shear wave elastography for evaluation of surgical outcomes in secondary lymphedema: a preliminary study
Corresponding author:
Zhu Haohui, Email: zhh761126@163.comReceived date: 2025-02-27
Online published: 2025-08-01
Copyright
应用高频超声与剪切波弹性成像(SWE)技术评估淋巴静脉吻合术(LVA)治疗继发性淋巴水肿的疗效。
本研究为一项前瞻性研究。纳入2023年8月至2024年8月于河南省人民医院血管外科接受LVA手术的继发性淋巴水肿患者34例,治疗前后患者均接受肢体周径测量、生物电阻抗分析(BIA)以及高频超声与SWE的检查。分析比较治疗前与治疗后多个肢体测量点的真皮层剪切波速度和厚度以及皮下组织层剪切波速度和皮下组织厚度,采用Pearson或Spearman检验分析各超声测量值治疗后改善率与患侧肢体过剩体积百分比(PEV)改善率及细胞外水比率(ECW/TBW)改善率的相关性。
34例患者中,健侧肢体与患侧肢体对应部位真皮层、皮下组织层的厚度与剪切波速度均存在显著差异(P均<0.001)。LVA后,患侧PEV及ECW/TBW均降低,差异均具统计学意义(P<0.001);各测量点真皮层剪切波速度降低、皮下组织层剪切波速度升高、皮下组织层厚度降低,差异均具统计学意义(P<0.001);真皮层厚度治疗前后差异无统计学意义(P>0.05)。各测量点真皮层剪切波速度改善率与ΔPEV均呈正相关(r =0.392~0.709,P均<0.05),与Δ(ECW/TBW)均呈正相关(r =0.346~0.687,P均<0.05)。皮下组织剪切波速度改善率与ΔPEV均呈负相关,膝关节上下的两个平面(髌骨上缘下10 cm平面和髌骨上缘平面)及小腿中点平面各点的相关性较高(r均<-0.5,P均<0.01);皮下组织剪切波速度改善率与Δ(ECW/TBW)呈负相关,以膝关节上下两个平面(髌骨上缘下10 cm平面和髌骨上缘平面)及小腿中点平面各点的相关性较高(r均<-0.41,P均<0.05)。皮下组织厚度改善率与ΔPEV及Δ(ECW/TBW)呈正相关(r =0.316~0.708,P均<0.05)。
继发性淋巴水肿患者LVA术后肢体真皮层剪切波速度降低、皮下组织层变薄。采用高频超声与SWE技术评估淋巴水肿手术治疗效果,可精细化反映患侧肢体治疗前后各组织层次改变情况,为术后随访及治疗提供超声影像学证据。
张硕 , 袁建军 , 崔明哲 , 丁晓 , 吴铭 , 郭艳艳 , 彭会娟 , 秦亚飞 , 陈晨 , 朱好辉 . 基于高频超声与剪切波弹性成像评估继发性淋巴水肿患者术后疗效的初步研究[J]. 中华医学超声杂志(电子版), 2025 , 22(06) : 547 -555 . DOI: 10.3877/cma.j.issn.1672-6448.2025.06.008
To explore the application of high-frequency ultrasound combined with shear wave elastography (SWE) in assessing the efficacy of lymphatic venous anastomosis (LVA) in the treatment of secondary lymphedema.
This prospective study included 34 patients with secondary lymphedema who underwent LVA at the Department of Vascular Surgery, Henan Provincial People’s Hospital between August 2023 and August 2024. Limb circumference measurement, bioelectrical impedance analysis (BIA), and high-frequency ultrasound combined with SWE were performed both before and after treatment. We analyzed and compared the dermal shear wave velocity and thickness, as well as the subcutaneous tissue shear wave velocity and thickness, at multiple limb measurement points pre- and post-treatment. Furthermore, Pearson or Spearman correlation tests were used to analyze the correlation between the improvement rates of the ultrasound-derived parameters after treatment and the improvement rates of both the percentage of excess volume (PEV) in the affected limb and the extracellular water-to-total body water ratio (ECW/TBW).
Significant differences were observed in dermal thickness and shear wave velocity (SWV) of both the dermis and subcutaneous tissue layer between the healthy and affected limbs (P<0.001). Following LVA, PEV and ECW/TBW of the affected limb significantly decreased P<0.001); dermal SWV significantly decreased at all measurement points (P<0.001); subcutaneous tissue layer SWV significantly increased (P<0.001); and dermal thickness changes were not statistically significant (P>0.05). Positive correlations were found between ΔPEV and Δ(ECW/TBW) (r>0.7, P<0.001), between the change rate of dermal SWV and ΔPEV at each measurement point (r =0.392-0.709, P<0.05), and between the change rate of dermal SWV and Δ(ECW/TBW) (r =0.346-0.687, P<0.05) Negative correlations were found between the change rate of subcutaneous tissue SWV and ΔPEV, with higher correlations observed at planes near the knee (10 cm below the superior patellar border and the superior patellar border plane) and the calf mid-point plane (r<-0.5, P<0.01), and between the change rate of subcutaneous tissue SWV and Δ(ECW/TBW), with higher correlations observed at points on the knee-related planes and calf mid-point plan than at thigh segment points (r<-0.41, P<0.05). The change rate of subcutaneous tissue thickness was positively correlated with both ΔPEV and Δ(ECW/TBW) (r =0.316-0.708, P<0.05).
Following LVA in patients with secondary lymphedema, decreased SWV in the dermis and thinning of the subcutaneous tissue layer were observed. High-frequency ultrasound combined with SWE effectively quantifies these changes across different tissue layers before and after treatment, providing valuable ultrasonographic evidence for postoperative follow-up and treatment assessment.
图3 继发性淋巴水肿患者健侧与患侧肢体超声测量图像。图a,b分别为健侧肢体真皮层厚度、皮下组织层厚度的二维超声测量图和剪切波弹性成像模式下测量图;图c,d分别为对应的患侧肢体相同测量点的真皮层厚度、皮下组织层厚度二维超声测量图和剪切波弹性成像模式下测量图 |
表1 34例继发性淋巴水肿患者下肢健侧与患侧相同部位真皮层剪切波速度和真皮层厚度的比较[ |
测量点 | 真皮层剪切波速度(m/s) | 真皮层厚度(cm) | ||||||
---|---|---|---|---|---|---|---|---|
健侧 | 患侧 | 统计值 | P值 | 健侧 | 患侧 | 统计值 | P值 | |
足背中点 | 2.73±0.65 | 3.93±0.88 | t = 94.33 | <0.001 | 0.11±0.02 | 0.24±0.05 | t = 87.64 | <0.001 |
足踝a点 | 2.61±0.41 | 4.21±0.81 | t = 110.36 | <0.001 | 0.08±0.06 | 0.28±0.06 | t = 94.23 | <0.001 |
足踝b点 | 2.39±0.51 | 4.32±0.80 | t = 113.68 | <0.001 | 0.09±0.04 | 0.28±0.05 | t = 97.34 | <0.001 |
足踝c点 | 2.66(0.29) | 4.69(0.78) | Z = 101.71 | <0.001 | 0.10±0.04 | 0.27±0.06 | t = 110.52 | <0.001 |
小腿中a点 | 2.54±0.72 | 4.34±0.61 | t = 114.49 | <0.001 | 0.11±0.05 | 0.30±0.07 | t = 121.30 | <0.001 |
小腿中b点 | 2.46±0.19 | 4.32±0.69 | t = 109.81 | <0.001 | 0.09±0.05 | 0.28±0.06 | t = 143.29 | <0.001 |
小腿中c点 | 2.63±0.13 | 4.23±0.64 | t = 167.91 | <0.001 | 0.09±0.07 | 0.27±0.06 | t = 117.53 | <0.001 |
髌骨上缘下10 cm a点 | 2.47±0.62 | 4.31±0.70 | t = 116.14 | <0.001 | 0.10±0.05 | 0.28±0.07 | t = 127.32 | <0.001 |
髌骨上缘下10 cm b点 | 2.44±0.19 | 4.09±0.79 | t = 109.33 | <0.001 | 0.12±0.04 | 0.27±0.05 | t = 129.37 | <0.001 |
髌骨上缘下10 cm c点 | 2.48±0.22 | 4.04±0.78 | t = 118.35 | <0.001 | 0.11±0.06 | 0.27±0.07 | t = 98.51 | <0.001 |
髌骨上缘a点 | 2.13(0.52) | 2.94(0.72) | Z = 90.12 | <0.001 | 0.10±0.05 | 0.26±0.06 | t = 87.62 | <0.001 |
髌骨上缘b点 | 2.09(0.43) | 2.97(0.91) | Z = 76.14 | <0.001 | 0.09±0.04 | 0.28±0.05 | t = 135.27 | <0.001 |
髌骨上缘c点 | 2.15±0.18 | 3.12±0.11 | t = 98.34 | <0.001 | 0.10±0.05 | 0.27±0.05 | t = 167.33 | <0.001 |
髌骨上缘上10 cm a点 | 2.06(0.54) | 2.61(0.81) | Z = 102.42 | <0.001 | 0.09(0.06) | 0.25(0.09) | Z = 114.83 | <0.001 |
髌骨上缘上10 cm b点 | 2.05±0.29 | 2.65±0.51 | t = 114.31 | <0.001 | 0.10±0.04 | 0.28±0.05 | t = 127.54 | <0.001 |
髌骨上缘上10 cm c点 | 2.08±0.12 | 2.88±0.50 | t = 113.67 | <0.001 | 0.09±0.05 | 0.27±0.06 | t = 112.76 | <0.001 |
注:a为前侧点;b为内侧点;c为外侧点;M(IQR)为中位数(四分位距) |
表2 34例继发性淋巴水肿患者下肢健侧与患侧相同部位皮下组织剪切波速度和皮下组织厚度的比较[ |
测量点 | 皮下组织剪切波速度(m/s) | 皮下组织厚度(cm) | ||||||
---|---|---|---|---|---|---|---|---|
健侧 | 患侧 | 统计值 | P值 | 健侧 | 患侧 | 统计值 | P值 | |
足背中点 | 1.59±0.25 | 1.86±0.32 | t = 97.66 | <0.001 | 0.21±0.22 | 0.63±0.25 | t = 94.35 | <0.001 |
足踝a点 | 1.47±0.42 | 1.69±0.54 | t = 76.21 | <0.001 | 0.38±0.12 | 1.03±0.55 | t = 87.29 | <0.001 |
足踝b点 | 1.48±0.23 | 1.79±0.39 | t = 113.29 | <0.001 | 0.54±0.29 | 1.64±0.61 | t = 91.37 | <0.001 |
足踝c点 | 1.51±0.37 | 1.79±0.45 | t = 115.03 | <0.001 | 0.42(0.27) | 1.13(0.72) | Z = 92.31 | <0.001 |
小腿中a点 | 1.46±0.28 | 1.97±0.17 | t = 121.37 | <0.001 | 0.27±0.13 | 1.01±0.44 | t = 78.34 | <0.001 |
小腿中b点 | 1.44±0.68 | 1.93±0.42 | t = 106.18 | <0.001 | 0.88±0.23 | 1.87±0.65 | t = 91.20 | <0.001 |
小腿中c点 | 1.44(0.36) | 1.87(0.60) | Z = 109.14 | <0.001 | 0.39±0.17 | 1.47±0.54 | t = 97.51 | <0.001 |
髌骨上缘下10 cm a点 | 1.45±0.24 | 1.85±0.33 | t = 73.37 | <0.001 | 0.39±0.26 | 1.18±0.61 | t = 92.31 | <0.001 |
髌骨上缘下10 cm b点 | 1.34±0.72 | 1.84±0.39 | t = 94.21 | <0.001 | 0.82±0.25 | 2.37±0.81 | t = 101.29 | <0.001 |
髌骨上缘下10 cm c点 | 1.42±0.31 | 1.79±0.31 | t = 115.61 | <0.001 | 0.47±0.21 | 1.50±0.61 | t = 103.46 | <0.001 |
髌骨上缘a点 | 1.43±0.42 | 1.72±0.19 | t = 91.32 | <0.002 | 0.74±0.23 | 1.88±0.73 | t = 111.23 | <0.001 |
髌骨上缘b点 | 1.39±0.71 | 1.77±0.22 | t = 89.37 | <0.001 | 1.01±0.35 | 2.93±0.95 | t = 121.53 | <0.001 |
髌骨上缘c点 | 1.42(0.25) | 1.72(0.30) | Z = 49.04 | <0.001 | 0.69±0.23 | 1.78±0.82 | t = 91.28 | <0.001 |
髌骨上缘上10 cm a点 | 1.38±0.26 | 1.73±0.18 | t = 76.19 | <0.001 | 1.02(0.38) | 1.99(0.87) | Z = 94.73 | <0.001 |
髌骨上缘上10 cm b点 | 1.29±0.18 | 1.85±0.29 | t = 88.15 | <0.001 | 1.21±0.470 | 3.03±0.81 | t = 112.23 | <0.001 |
髌骨上缘上10 cm c点 | 1.29(0.20) | 1.69(0.30) | Z = 93.03 | <0.001 | 0.87±0.28 | 2.00±0.88 | t = 97.62 | <0.001 |
注:a为前侧点;b为内侧点;c为外侧点;M(IQR)为中位数(四分位距) |
表3 继发性淋巴水肿患者患侧肢体治疗前后PEV和ECW/TBW比较(%, |
测量参数 | 例数 | 术前 | 术后 | t值 | P值 |
---|---|---|---|---|---|
PEV | 34 | 47.53±16.59 | 23.15±13.46 | 251.52 | <0.001 |
ECW/TBW | 34 | 43.76±1.73 | 41.35±1.54 | 77.02 | <0.001 |
注:PEV为过剩体积百分比;ECW/TBW为细胞外水比率 |
表4 34例继发性淋巴水肿患者患肢不同测量点真皮层剪切波速度和真皮层厚度治疗前后比较[ |
测量点 | 真皮层剪切波速度(m/s) | 真皮层厚度(cm) | ||||||
---|---|---|---|---|---|---|---|---|
治疗前 | 治疗后 | 统计值 | P值 | 治疗前 | 治疗后 | 统计值 | P值 | |
足背中点 | 3.93±0.88 | 3.16±0.64 | t = 99.39 | <0.001 | 0.24±0.05 | 0.22±0.05 | t = 0.59 | 0.42 |
足踝a点 | 4.21±0.81 | 3.32±0.69 | t = 129.96 | <0.001 | 0.28±0.06 | 0.27±0.06 | t = 0.57 | 0.46 |
足踝b点 | 4.32±0.80 | 3.48±0.72 | t = 125.98 | <0.001 | 0.28±0.05 | 0.27±0.05 | t = 0.70 | 0.41 |
足踝c点 | 4.69±0.78 | 3.64±0.60 | t = 129.95 | <0.001 | 0.27±0.06 | 0.26±0.05 | t = 0.51 | 0.48 |
小腿中a点 | 4.34±0.61 | 3.45±0.56 | t = 147.68 | <0.001 | 0.30±0.07 | 0.29±0.06 | t = 1.77 | 0.19 |
小腿中b点 | 4.32±0.69 | 3.45±0.64 | t = 146.80 | <0.001 | 0.28±0.06 | 0.28±0.06 | t = 2.59 | 0.11 |
小腿中c点 | 4.23±0.63 | 3.26±1.04 | t = 198.09 | <0.001 | 0.27±0.06 | 0.28±0.06 | t = 0.32 | 0.57 |
髌骨上缘下10 cm a点 | 4.31±0.70 | 3.38±0.59 | t = 137.24 | <0.001 | 0.28±0.07 | 0.28±0.06 | t = 0.27 | 0.61 |
髌骨上缘下10 cm b点 | 4.09±0.79 | 3.25±0.63 | t = 118.69 | <0.001 | 0.27±0.05 | 0.27±0.05 | t = 2.93 | 0.09 |
髌骨上缘下10 cm c点 | 4.04±0.78 | 3.13±0.68 | t = 120.39 | <0.001 | 0.27±0.07 | 0.27±0.07 | t = 0.89 | 0.35 |
髌骨上缘a点 | 2.94(0.72) | 2.55(0.49) | Z = 70.04 | <0.001 | 0.26±0.06 | 0.26±0.05 | t = 0.38 | 0.55 |
髌骨上缘b点 | 2.97(0.91) | 2.63(0.73) | Z = 49.11 | <0.001 | 0.28±0.05 | 0.27±0.05 | t = 0.35 | 0.56 |
髌骨上缘c点 | 3.12(1.22) | 2.54(0.77) | Z = 91.64 | <0.001 | 0.27±0.05 | 0.27±0.04 | t = 0.67 | 0.42 |
髌骨上缘上10 cm a点 | 2.61±0.80 | 2.23±0.54 | t = 121.32 | <0.001 | 0.25±0.09 | 0.26±0.06 | t = 0.84 | 0.37 |
髌骨上缘上10 cm b点 | 2.65(0.82) | 2.18(0.51) | Z = 104.38 | <0.001 | 0.28±0.05 | 0.29±0.05 | t = 0.57 | 0.45 |
髌骨上缘上10 cm c点 | 2.88±0.50 | 2.31±0.41 | t = 131.79 | <0.001 | 0.27±0.06 | 0.27±0.05 | t = 0.66 | 0.42 |
注:a为前侧点;b为内侧点;c为外侧点;M(IQR)为中位数(四分位距) |
表5 34例继发性淋巴水肿患者患肢不同测量点皮下组织剪切波速度和皮下组织厚度治疗前后比较[ |
测量点 | 皮下组织剪切波速度(m/s) | 皮下组织厚度(cm) | ||||||
---|---|---|---|---|---|---|---|---|
治疗前 | 治疗后 | 统计值 | P值 | 治疗前 | 治疗后 | 统计值 | P值 | |
足背中点 | 1.86(0.32) | 2.30(0.79) | Z = 72.44 | <0.001 | 0.63(0.27) | 0.37(0.23) | Z=81.05 | <0.001 |
足踝a点 | 1.69±0.54 | 2.42±0.60 | t = 61.96 | <0.001 | 1.03±0.55 | 0.68±0.22 | t=65.94 | <0.001 |
足踝b点 | 1.79±0.39 | 2.41±0.41 | t = 128.96 | <0.001 | 1.64±0.61 | 0.95±0.44 | t=88.96 | <0.001 |
足踝c点 | 1.79±0.45 | 2.35±0.49 | t = 45.00 | <0.001 | 1.13(0.72) | 0.68(0.38) | Z=57.83 | <0.001 |
小腿中a点 | 1.97(0.61) | 2.37±0.42 | 115.53 | <0.001 | 1.01±0.44 | 0.49±0.30 | t=85.25 | <0.001 |
小腿中b点 | 1.93(0.34) | 2.27(0.48) | Z = 136.83 | <0.001 | 1.87±0.65 | 1.12±0.45 | t=89.65 | <0.001 |
小腿中c点 | 1.87(0.60) | 2.30(0.68) | Z = 110.72 | <0.001 | 1.47±0.54 | 0.78±0.27 | t=77.05 | <0.001 |
髌骨上缘下10 cm a点 | 1.85±0.33 | 2.27±0.72 | t = 53.70 | <0.001 | 1.18±0.61 | 0.68±0.36 | t=67.92 | <0.001 |
髌骨上缘下10 cm b点 | 1.84±0.39 | 2.28±0.55 | t = 44.91 | <0.001 | 2.37±0.81 | 1.38±0.62 | t=102.47 | <0.001 |
髌骨上缘下10 cm c点 | 1.79(0.38) | 2.19(0.55) | Z = 117.62 | <0.001 | 1.50(0.61) | 0.90(0.49) | Z=83.66 | <0.001 |
髌骨上缘a点 | 1.72±0.48 | 2.02±0.31 | t = 11.75 | <0.002 | 1.88±0.73 | 1.16±0.61 | t=79.05 | <0.001 |
髌骨上缘b点 | 1.77(0.41) | 2.06(0.46) | t = 69.97 | <0.001 | 2.93±0.95 | 1.71±0.73 | t=105.71 | <0.001 |
髌骨上缘c点 | 1.72±0.30 | 1.97±0.43 | t = 28.02 | <0.001 | 1.78±0.82 | 1.08±0.50 | t=51.11 | <0.001 |
髌骨上缘上10 cm a点 | 1.73±0.18 | 1.92±0.23 | t = 73.28 | <0.001 | 1.99±0.87 | 1.26±0.53 | t=74.28 | <0.001 |
髌骨上缘上10 cm b点 | 1.85±0.29 | 2.03±0.37 | t = 72.50 | <0.001 | 3.03±0.81 | 1.92±0.70 | t=110.82 | <0.001 |
髌骨上缘上10 cm c点 | 1.69(0.30) | 1.86(0.28) | Z = 94.11 | <0.001 | 2.00±0.88 | 1.11±0.56 | t=71.69 | <0.001 |
注:a为前侧点;b为内侧点;c为外侧点;M(IQR)为中位数(四分位距) |
表6 34例继发性淋巴水肿患者各超声测量值治疗前后的改善率与ΔPEV及ΔECW/TBW的相关性 |
测量点 | ΔSWVa/ΔPEV | ΔSWVa/Δ(ECW/TBW) | ΔSWVb/ΔPEV | ΔSWVb/Δ(ECW/TBW) | Δ厚度/ΔPEV | Δ厚度/Δ(ECW/TBW) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
r值 | P值 | r值 | P值 | r值 | P值 | r值 | P值 | r值 | P值 | r值 | P值 | |
足背中点 | 0.574 | 0.001 | 0.601 | 0.001 | -0.300 | 0.045 | -0.371 | 0.031 | 0.400 | 0.019 | 0.477 | 0.004 |
足踝a点 | 0.651 | 0.001 | 0.627 | 0.001 | -0.357 | 0.038 | -0.284 | 0.033 | 0.343 | 0.047 | 0.384 | 0.025 |
足踝b点 | 0.484 | 0.004 | 0.513 | 0.002 | -0.370 | 0.031 | -0.472 | 0.005 | 0.336 | 0.042 | 0.396 | 0.020 |
足踝c点 | 0.486 | 0.004 | 0.450 | 0.008 | -0.441 | 0.009 | -0.482 | 0.004 | 0.345 | 0.046 | 0.316 | 0.039 |
小腿中a点 | 0.704 | 0.001 | 0.664 | 0.001 | -0.523 | 0.002 | -0.565 | 0.001 | 0.688 | 0.001 | 0.708 | 0.001 |
小腿中b点 | 0.714 | 0.001 | 0.687 | 0.001 | -0.594 | 0.001 | -0.600 | 0.001 | 0.605 | 0.001 | 0.612 | 0.001 |
小腿中c点 | 0.709 | 0.001 | 0.656 | 0.001 | -0.580 | 0.001 | -0.592 | 0.001 | 0.589 | 0.001 | 0.654 | 0.001 |
髌骨上缘下10 cm a点 | 0.544 | 0.001 | 0.514 | 0.001 | -0.504 | 0.002 | -0.436 | 0.010 | 0.518 | 0.002 | 0.437 | 0.010 |
髌骨上缘下10 cm b点 | 0.586 | 0.001 | 0.531 | 0.001 | -0.604 | 0.001 | -0.559 | 0.001 | 0.682 | 0.001 | 0.548 | 0.001 |
髌骨上缘下10 cm c点 | 0.490 | 0.003 | 0.415 | 0.015 | -0.609 | 0.001 | -0.499 | 0.001 | 0.685 | 0.001 | 0.657 | 0.001 |
髌骨上缘a点 | 0.529 | 0.001 | 0.390 | 0.023 | -0.520 | 0.002 | -0.501 | 0.003 | 0.577 | 0.001 | 0.672 | 0.001 |
髌骨上缘b点 | 0.558 | 0.001 | 0.443 | 0.009 | -0.535 | 0.001 | -0.510 | 0.002 | 0.638 | 0.001 | 0.531 | 0.001 |
髌骨上缘c点 | 0.417 | 0.014 | 0.409 | 0.016 | -0.588 | 0.001 | -0.410 | 0.016 | 0.445 | 0.008 | 0.574 | 0.001 |
髌骨上缘上10 cm a点 | 0.392 | 0.022 | 0.437 | 0.010 | -0.399 | 0.019 | -0.430 | 0.011 | 0.446 | 0.008 | 0.523 | 0.002 |
髌骨上缘上10 cm b点 | 0.496 | 0.003 | 0.606 | 0.001 | -0.385 | 0.025 | -0.423 | 0.013 | 0.486 | 0.004 | 0.326 | 0.040 |
髌骨上缘上10 cm c点 | 0.446 | 0.008 | 0.346 | 0.045 | -0.352 | 0.041 | -0.385 | 0.024 | 0.377 | 0.028 | 0.357 | 0.038 |
注:a为前侧点;b为内侧点;c为外侧点;ΔSWVa为真皮层剪切波速度治疗后改善率;ΔSWVb为皮下组织剪切波速度治疗后改善率;Δ厚度为皮下组织厚度治疗后改善率;ΔPEV为治疗前后患侧肢体的过剩体积百分比差值;Δ(ECW/TBW)为治疗前后细胞外水比率的差值 |
张硕,袁建军,崔明哲,等.基于高频超声与剪切波弹性成像评估继发性淋巴水肿患者术后疗效的初步研究[J/OL].中华医学超声杂志(电子版), 2025, 22(6): 547-555.
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