Krepkin Konstantin, Bruno Mary, Raya José G, Adler Ronald S, Gyftopoulos Soterios
Department of Radiology, NYU Langone Medical Center/Hospital for Joint Diseases, 301 E 17th Street, New York, NY, 10003, USA.
Department of Radiology, NYU Langone Medical Center, Center for Biomedical Imaging, 660 First Avenue, New York, NY, 10016, USA.
Skeletal Radiol. 2017 Feb;46(2):191-199. doi: 10.1007/s00256-016-2534-0. Epub 2016 Nov 28.
To determine whether there is an association between T2/T2* mapping and supraspinatus tendon mechanical properties as assessed by shear-wave ultrasound elastography (SWE).
This HIPAA-compliant prospective pilot study received approval from our hospital's institutional review board. Eight patients (3 males/5 females; age range 44-72 years) and nine shoulders underwent conventional shoulder MRI, T2/T2* mapping on a 3-T scanner, and SWE. Two musculoskeletal radiologists reviewed the MRI examinations in consensus for evidence of supraspinatus tendon pathology, with tear size measured for full-thickness tears. T2/T2* values and ultrasound shear-wave velocities (SWV) were calculated in three corresponding equidistant regions of interest (ROIs) within the insertional 1-2 cm of the supraspinatus tendon (medial, middle, lateral). Pearson correlation coefficients between T2/T2* values and SWV, as well as among T2, T2*, SWV and tear size, were calculated.
There was a significant negative correlation between T2* and SWV in the lateral ROI (r = -0.86, p = 0.013) and overall mean ROI (r = -0.90, p = 0.006). There was significant positive correlation between T2 and measures of tear size in the lateral and mean ROIs (r range 0.71-0.77, p range 0.016-0.034). There was significant negative correlation between SWV and tear size in the middle and mean ROIs (r range -0.79--0.68, p range 0.011-0.046).
Our pilot study demonstrated a potential relationship between T2* values and shear wave velocity values in the supraspinatus tendon, a finding that could lead to an improved, more quantitative evaluation of the rotator cuff tendons.
通过剪切波超声弹性成像（SWE）评估，确定T2/T2*成像与冈上肌腱力学特性之间是否存在关联。
本符合健康保险流通与责任法案（HIPAA）的前瞻性初步研究获得了我院机构审查委员会的批准。8例患者（3例男性/5例女性；年龄范围44 - 72岁）及9个肩部接受了常规肩部MRI检查、在3-T扫描仪上进行T2/T2成像以及SWE检查。两名肌肉骨骼放射科医生共同审查MRI检查结果，以寻找冈上肌腱病变的证据，对全层撕裂测量撕裂大小。在冈上肌腱插入点1 - 2 cm内的三个相应等距感兴趣区域（ROI）（内侧、中间、外侧）计算T2/T2值和超声剪切波速度（SWV）。计算T2/T2值与SWV之间以及T2、T2、SWV与撕裂大小之间的Pearson相关系数。
外侧ROI中T2*与SWV之间存在显著负相关（r = -0.86，p = 0.013），总体平均ROI中也存在显著负相关（r = -0.90，p = 0.006）。外侧和平均ROI中T2与撕裂大小测量值之间存在显著正相关（r范围为0.71 - 0.77，p范围为0.016 - 0.034）。中间和平均ROI中SWV与撕裂大小之间存在显著负相关（r范围为 -0.79至 -0.68，p范围为0.011 - 0.046）。
我们的初步研究表明冈上肌腱中T2*值与剪切波速度值之间存在潜在关系，这一发现可能会改进对肩袖肌腱的评估，使其更加定量。
