磁共振3D-DESS序列在小儿多指(趾)畸形术前评估中的应用  

The Value of MRI 3D-DESS Technique in Preoperative Evaluation of Polydactyly in Children

作　　者：李晶灵 张航 刘莹 LI Jing-ling;ZHANG Hang;LIU Ying(Department of Radiology,Xijing Hospital of Air Force Military Medical University,Xi'an 710032,Shaanxi Province,China;Department of Orthopaedics,Xijing Hospital of Air Force Military Medical University,Xi'an 710032,Shaanxi Province,China)

机构地区：[1]空军军医大学西京医院放射科,陕西西安710032 [2]空军军医大学西京医院骨科,陕西西安710032

出　　处：《中国CT和MRI杂志》2024年第6期163-165,共3页Chinese Journal of CT and MRI

摘　　要：目的 探讨MRI三维双重回波稳态成像(3D-DESS)序列在小儿多指(趾)畸形术前评估中的应用价值。方法 前瞻性选择2021年5月至2022年4月期间我院骨科收治的多指(趾)畸形患儿18例为研究对象,术前对患儿进行MRI 3D-DESS序列列扫描,由两名高年资医生采用双盲3分制法分析图像质量;且以手术探查结果为金标准,分析图像结果与术中探查结果的一致性。结果 18例患儿均扫描成功,图像能清晰显示软骨骨骺、肌腱及骨组织,所有图像质量均满足诊断要求,其中16例(88.9%)评分为3分,平均为2.6±0.3,两位医生对图像质量的评估ICC值为0.8579(95%CI:0.7253-0.9658)。所有病例图像诊断结果与术中探查结果完全一致。结论 无创无辐射的MRI 3D-DESS序列可提供患儿畸形指(趾)的软骨骨骺、肌腱及骨组织生长发育情况,对于小儿多指(趾)畸形术前的评估及手术方案的制定具有较高的临床诊断价值。Objective To explore the value of magnetic resonance(MR) 3 Dimensions-Double echo steady state(3D-DESS)technique in preoperative evaluation of polydactyly in children.Methods 18children were prospectively enrolled in this study,who were clinically diagnosed as polydactyly in the Department of Orthopaedics of our hospital from May 2021 to April 2022.Preoperative MRI 3D-DESS scan was perfo rmed.Image quality was analyzed by two senior radiologists using a double-blinded 3-point scale,and the intraoperative results were used as the "gold standard" to analyze the consistency of image results and intraoperative results.Results All the 18 children performed MRI scanning successfully.The epiphysis,tendon and bone tissue were clearly showed.All the image quality met the diagnostic requirements,of which the score of 16 cases(88.9%)was 3 point,with an average score of 2.6±0.3.ICC value of two doctors' assessments of image quality was 0.8579(95% CI:0.7253-0.9658).The image results of all the cases were consistent with intraoperative findings.Conclusion Non-invasive and radiation-free MR 3D-DESS technique can provide the growth and development information of cartilage epiphysis,tendon and bone tissue of polydactyly in children before surgery,which has high value for preoperative evaluation and preparation of surgical treatment.

关 键 词：磁共振 多指(趾)畸形 骨骺 三维双重回波稳态成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]