| 范广涛,施政良,黄益龙,张振光,陈佳鑫,杞天付,杨丽竹,李彦林,何波.MR T2* mapping定量评估膝关节前交叉韧带重建术后移植物成熟度[J].中国医学影像技术,2022,38(11):1699~1703 |
| MR T2* mapping定量评估膝关节前交叉韧带重建术后移植物成熟度 |
| MR T2* mapping for quantitative evaluation of grafts maturity after anterior cruciate ligament reconstruction |
| 投稿时间：2022-06-19 修订日期：2022-09-17 |
| DOI：10.13929/j.issn.1003-3289.2022.11.023 |
| 中文关键词: 前交叉韧带重建术 移植物 磁共振成像 成熟度 T2* mapping |
| 英文关键词:anterior cruciate ligament reconstruction graft magnetic resonance imaging maturity T2* mapping |
| 基金项目:昆明医科大学研究生创新基金项目（2022S058）。 |
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| 中文摘要: |
| 目的 探讨MR T2* mapping定量评估膝关节前交叉韧带重建（ACLR）术后移植物成熟度的临床价值。方法 对26例因前交叉韧带（ACL）损伤而接受ACLR患者（ACLR组）分别于术后1、3、6个月行膝关节三维稳态采集快速成像（3D-FIESTA）及T2* mapping检查，另对26名健康成人志愿者（对照组）行单次膝关节同序列扫描。对ACLR组于术后6个月以统一国际膝关节文献委员会膝关节评估表（IKDC）进行临床功能评分；比较ACLR组术后各时间点移植物T2*值及其与对照组ACL的T2*值的差异，分析ACLR组术后6个月移植物T2*值与IKDC评分的相关性。结果 ACLR组术后1、3个月移植物T2*值低于对照组ACL的T2*值；ACLR组术后6个月移植物T2*值高于术后1、3个月（P均<0.01）；ACLR组术后6个月移植物与对照组ACL的T2*值、ACLR组术后1与3个月移植物T2*值差异均无统计学意义（P均>0.05）。ACLR组术后6个月移植物T2*值与IKDC评分呈中度负相关（r=-0.525，P=0.008）。结论 MR T2* mapping对无创定量评估ACLR术后移植物成熟度具有一定价值。 |
| 英文摘要: |
| Objective To explore the value of MR T2* mapping for quantitative evaluation of grafts maturity after anterior cruciate ligament reconstruction (ACLR). Methods Three-dimensional fast imaging employing steady state acquisition (3D-FIESTA) and T2* mapping of the injured knee were performed 1,3 and 6 months after ACLR in 26 patients with anterior cruciate ligament (ACL) injury (ACLR group), also in 26 healthy adult volunteers (control group) for single time. International Knee Documentation Committee knee evaluation form (IKDC) was used to evaluate patients' clinical function in ACLR group 6 months after operation. T2* values of grafts or ACL in ACLR group were compared among different time points after operation and with that in control group, and the correlations of T2* values of grafts and IKDC scores 6 months after operation in ACLR group were analyzed. Results One and 3 months after operation, T2* values of grafts in ACLR group were lower than that of ACL in control group. Six months after operation, T2* values of grafts in ACLR group were higher than those of 1 and 3 months after operation (all P<0.01). No significant difference of T2* values was found between grafts in ACLR group 6 month after operation and those of ACL in control group, nor of T2* values of grafts in ACLR group between 1 and 3 month after operation (all P>0.05). T2* values of grafts in ACLR group 6 months after operation were moderate negative correlated with IKDC score (r=-0.525, P=0.008). Conclusion MR T2* mapping had a certain clinical value for noninvasive quantitative evaluation of grafts maturity after ACLR. |
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