| 摘要: |
| 【】目的 初步探讨声辐射力脉冲成像技术评价正常髌韧带的可行性及可重复性。方法 由2名医生分别对44例健康成人志愿者的双侧髌韧带进行二维超声扫查和声辐射力脉冲成像技术检查,每位医生应用声辐射力脉冲成像技术对髌韧带的近、中、远段进行纵切面和横切面扫查2次。结果 正常成人髌韧带厚度2.89~3.10 mm,平均2.99±0.33 mm。声辐射力脉冲成像技术获得正常髌韧带剪切波速度：纵切面,近段3.24±0.64m/s,中段3.45±0.72m/s,远段3.27±0.56m/s；横切面,近段2.85±0.78m/s,中段2.88±0.60m/s,远段2.64±0.42m/；Intra-CC为0.78～0.98；intra-CV为0.16～0.26；Inter-CC为0.18～0.41；inter-CV为0.18～0.25。结论 声辐射力脉冲成像技术能够测量髌韧带的剪切波速度,具有较好的一致性及可重复性,可以快速、方便的对髌韧带弹性进行评价。 |
| 关键词: 声辐射力脉冲成像技术 髌韧带 超声检查 |
| DOI： |
| 投稿时间：2016-10-21修订日期：2016-12-24 |
| 基金项目:深圳市科技计划项目 |
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| Feasibility study on evaluation of acoustic radiation force impulse imaging of health adult patellar ligament |
| Wang yue,LIU Li |
| (Department of Ultrasonography,Peking University Shenzhen Hospital) |
| Abstract: |
| Objective To investigate the feasibility and reproducibility of Acoustic Radiation Force Impulse (ARFI) for assessing the mechanical properties of the normal patellar ligaments. Methods Eighty-eighty patellar ligaments of 44 healthy volunteers were examined. A dedicated ultrasound (US) examination was performed followed by ARFI imaging with the ACUSON S2000 ultrasound system. All measurements were performed separately by two observers within a period of 2 hours and each observer measured shear-wave speed of every tendon third twice. Longitudinal and axial images were obtained of each tendon third using US and ARFI. Results The mean thickness of patellar ligaments of the healthy volunteers is 2.99±0.33mm (range, 2.89~3.10mm). In longitudinal images, the mean speed of the proximal third is 3.24m/s, SD is 0.64; the mean speed of the middle third is 3.45m/s, SD is 0.72; the mean speed of the distal third is 3.27m/s, SD is 0.56. In transverse images, the mean speed of the proximal third is 2.85m/s, SD is 0.78; the mean speed of the middle third is 2.88m/s, SD is 0.60; the mean speed of the distal third is 2.64m/s, SD is 0.42. There was significant difference in shear-wave speed between longitudinal and transverse images（p<0.01） and measurements in transverse plane were lower than that in longitudinal plane. There was no statistically significant correlation between the shear-wave speed and sex、age or left-right side（p>0.01）.There was no significant difference among proximal third、middle third and distal third whether in longitudinal plane or in transverse plane（p>0.01）. The intra-CC values were excellent, ranging over 0.9; the inter-CC values were fair, ranging between 0.18-0.41; the values of intra-CV and inter-CV are not significant different. Conclusions ARFI has excellent repeatability and good reproducibility and it is fast and convenient to evaluate the patellar ligaments elasticity, which in the future might be used as an adjunct to conventional ultrasound to increase diagnostic accuracy. |
| Key words: Acoustic Radiation Force Impulse Patellar Ligament Ultrasound |
