3D-FIESTA和3D-FSE对于跟腱损伤的诊断价值

目的：研究闭合性跟腱撕裂患者的MRI影像特点，比较其在不同MRI序列上的表现，探讨新序列在跟腱撕裂中的诊断价值。方法分析2011年6月-2013年6月间在我院就诊的41例跟腱损伤患者的MRI表现。将41例患者分为A、B两组。A组25例，行常规序列扫描（T1WI＋T2WI＋STIR），B组16例，行常规序列（T1WI＋T2WI＋STIR）及新序列（3D-FIESTA＋3D-FSE）扫描。MRI检查后，A组11例、B组8例行手术治疗，并将其影像资料与手术结果进行比较，比较A、B组的诊断效能。结果跟腱部分撕裂的MRI表现为跟腱增粗，跟腱内条状或片状高信号。完全撕裂的MRI表现为跟腱损伤处完全分离，断端回缩或完全交错。A组诊断完全撕裂10例均行手术治疗，手术结果9例为完全撕裂。B组诊断完全撕裂7例均与手术证实符合。结论MRI对于诊断跟腱撕裂具有重要价值，新序列（3D-FIESTA，3D-FSE）能提高诊断跟腱完全撕裂的正确率及部分撕裂的检出率。

The diagnostic value of 3D-FIESTA and 3D-FSE in achilles tendon tear

Objective We study M RI imaging features of closed injury of Achilles tendon ,compare its manifestation on different M RI sequences ,and discuss the diagnostic value of new sequence in Achilles tendon tear .Methods We analysed the MRI performance of 41 cases of Achilles tendon tear who saw a doctor in our hospital between June 2011 and June 2013 .41 cases were devieded into two groups：A and B .Group A included 25 cases ,which were scaned with general se-quences （T1WI＋ T2WI＋STIR） .Group B included 16 cases ,which were scaned with general sequences （T1WI＋ T2WI＋STIR） and new sequences （3D-FIESTA＋3D-FSE） .After the examination of MRI ,11 cases from growp A and 8 cases from growp B accepted operation .We made a comparison between their imaging data and operation results ,and compared the diagnostic efficiency of group A and group B .Results In partial tear of achilles tendon ,enlargement of the Achilles tendon with continuity was the the main MRI manifestation ,and there was strip-like or schistose-like increased signal in-tensity in achilles tendon .In the MRI imaging of completely tear ,achilles tendon was completely separated in the injury place .Lacerated ends were retracted or completely staggered ,and brush-like change could be seen .10 cases in growp A were diagnosed as completely tear ,which were all accepted operation .Operation results showed that 9 cases were com-pletely tear ,and 1 case was most partial tear .7 cases in group B were diagnosed as completely tear ,which were wese proved by operation .Conclusion MRI has important value in the diagnosis of Achilles tendon tear ,and new sequences （3D-FIESTA ,3D-FSE） can improve the diagnotic accuracy of completely tear and the relevancy ratio of partial tear .