| 摘要: |
| 目的 探讨声触诊弹性成像（sound touch elastography, STE）检测肾实质硬度的可行性以及影响因素。方法 对68名健康志愿者行双肾实质STE检查，分析双肾不同部位测值的成功率、变异度、操作者内可重复性以及影响因素。 结果 （1）左肾上极、左肾中部、左肾下极、右肾上极、右肾中部、右肾下极肾实质STE检测成功人数分别为49、55、50、51、54、
50人；检测成功率分别为72.06%、80.88%、73.53%、75.00%、79.41%、73.53%；变异度分别为（14.66±6.10）%、（12.18±7.33）%、（14.66±6.01）%、（15.35±6.19）%、（13.21±5.51）%、（17.64±6.74）%；操作者内重复性分别为0.86（0.73-0.94）、0.88（0.80-0.94）、0.78（0.62-0.88）、0.84（0.77-0.90）、0.82（0.73-0.89）、0.77（0.60-0.87）。（2）双肾实质不同取样部位STE测值分别为：（8.06±1.71）kPa、（8.25±1.82）kPa、（7.98±1.74）kPa、（8.03±1.48）kPa、（7.89±1.76）kPa、（7.94±1.84）kPa，差异无统计学意义（F左右肾=0.68，P=0.41；F上中下极=0.10，P=0.90）。（3）不同年龄、性别、身高、体重、体重指数、左肾中部被膜距探头距离、取样深度的年轻健康志愿者其左肾中部实质STE的测值差异无统计学意义（t值分别为1.08、-1.07、-0.79、-0.61、-0.33、-1.50、0.34、0.47，p值均大于0.05）。左肾中部实质STE与健康志愿者年龄、性别、身高、体重、体重指数、左肾中部被膜距探头距离、取样深度均无相关性（r值分别为-0.12、0.15、0.13、0.08、0.01、0.14、-0.05、-0.06，p值均大于0.05）。结论 双肾STE检测成功率、稳定性较佳，可作为评估肾脏弹性的可靠检查方法。对于正常双肾或双肾弥漫性改变的疾病，如果仅进行一个部位肾实质的测值，推荐选取左肾中部实质。 |
| 关键词: 超声 声触诊弹性成像 剪切波 可行性 影响因素 |
| DOI： |
| 投稿时间：2021-01-20修订日期：2021-08-29 |
| 基金项目:国家自然科学基金 (81602617) |
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| A Preliminary Study on the Hardness of Renal Parenchyma by Sound Touch Elastography |
| Lu Chang,Fu Jing,Huang Hejing |
| (Author unit: Department of Ultrasound,Changzheng Hospital Affiliated to Naval Medical University,200003) |
| Abstract: |
| Objective To investigate the feasibility and influencing factors of sound touch elastography (STE) in detecting renal parenchymal stiffness. Methods Sixty-eight healthy volunteers underwent bilateral renal parenchyma STE examination. The success rate, variability，intra-operator repeatability of different parts of the kidneys and influencing factors were analyzed. Results (1) The number of successful detection of STE in renal parenchyma of left upper pole, left middle pole, left lower pole, right upper pole, right middle pole and right lower pole was 49, 55, 50, 51, 54, 50, respectively. The detection success rates was 72.06%, 80.88%, 73.53%, 75.00%, 79.41% and 73.53% respectively; the variability was (14.66 ± 6.10)%, (12.18 ± 7.33)%, (14.66 ± 6.01)%, (15.35 ± 6.19)%, (13.21 ± 5.51)%, (17.64 ± 6.74)%; and the intra-operator repeatability were 0.86 (0.73-0.94), 0.88 (0.80-0.94), 0.78 (0.62-0.88), 0.84 (0.77-0.90), 0.82 (0.73-0.89), 0.77 (0.60-0.87). (2) The STE values of different sampling sites of renal parenchyma were (8.06 ± 1.71) kPa, (8.25 ± 1.82) kPa, (7.98 ± 1.74) kPa, (8.03 ± 1.48) kPa, (7.89 ± 1.76) kPa and (7.94 ± 1.84) kPa, respectively, with no significant difference (3) There was no significant difference in STE of middle renal parenchyma among young healthy volunteers with different age, gender, height, weight, body mass index, distance between left renal capsule and probe and sampling depth. T values were 1.08, - 1.07, - 0.79, - 0.61, - 0.33, - 1.50, 0.34, 0.47, respectively, with P >0.05. Conclusion The success rate and stability of double kidney STE were good, which could be used as a reliable method to evaluate renal elasticity. |
| Key words: ultrasound sound touch elastography shear wave feasibility influencing factors |
