Quantitative assessment of the supraspinatus tendon on MRI using T2/T2*mapping and shear-wave ultrasound elastography: a pilot study
Quantitative assessment of the supraspinatus tendon on MRI using T2/T2*mapping and shear-wave ultrasound elastography: a pilot study
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DOI：
10.1007/s00256-016-2534-0
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发表时间：
2017-02-01
影响因子：
2.1
通讯作者：
Gyftopoulos, Soterios
中科院分区：
文献类型：
--
作者：
Krepkin, Konstantin;Bruno, Mary;Gyftopoulos, Soterios
目的 确定 T2/T2* 映射与剪切波超声弹性成像 (SWE) 评估的冈上肌腱机械性能之间是否存在关联。材料和方法 这项符合 HIPAA 的前瞻性试点研究获得了我院机构审查委员会的批准。 8 名患者（3 名男性/5 名女性；年龄范围 44-72 岁）和 9 名肩膀接受了传统肩部 MRI、3-T 扫描仪上的 T2/T2* 映射和 SWE。两名肌肉骨骼放射科医生一致审查了 MRI 检查，以寻找冈上肌腱病理学的证据，并测量了全层撕裂的撕裂尺寸。 T2/T2* 值和超声剪切波速度 (SWV) 是在冈上肌腱插入 1-2 cm 内（内侧、中间、外侧）的三个相应等距感兴趣区域 (ROI) 中计算的。计算 T2/T2* 值与 SWV 之间以及 T2、T2*、SWV 和撕裂尺寸之间的 Pearson 相关系数。 结果 在横向 ROI（r = -0.86，p = 0.013）和总体平均 ROI（r = -0.90，p = 0.006）中，T2* 和 SWV 之间存在显着负相关。 T2 与横向和平均 ROI 中撕裂尺寸的测量值之间存在显着正相关（r 范围 0.71-0.77，p 范围 0.016-0.034）。中间和平均 ROI 的 SWV 和撕裂大小之间存在显着的负相关性（r 范围 -0.79-0.68，p 范围 0.011-0.046）。 结论 我们的初步研究证明了冈上肌腱中 T2* 值和剪切波速度值之间的潜在关系，这一发现可能导致对肩袖肌腱的改进、更定量的评估。
Objective To determine whether there is an association between T2/T2* mapping and supraspinatus tendon mechanical properties as assessed by shear-wave ultrasound elastography (SWE).Materials and methods 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.Results 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).Conclusion 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.