High-Resolution Qualitative and Quantitative Magnetic Resonance Evaluation of the Glenoid Labrum.
High-Resolution Qualitative and Quantitative Magnetic Resonance Evaluation of the Glenoid Labrum.
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高分辨率定性和定量磁共振评估。
DOI：
10.1097/rct.0000000000000307
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发表时间：
2015-11
影响因子：
1.3
通讯作者：
Chung CB
中科院分区：
文献类型：
--
作者：
Iwasaki K;Tafur M;Chang EY;Statum S;Biswas R;Tran B;Bae WC;Du J;Bydder GM;Chung CB
实施定性和定量MR序列以评价盂唇病理。解剖了6个盂唇，并根据大体和MR结果将其前部和后部分为正常、轻度退化和重度退化组。使用T1加权、质子密度加权（PD）、扰相梯度回波（SPGR）和超短回波时间（UTE）序列进行定性评价。定量评价包括T2和T1 rho测量值以及使用UTE技术获得的T1、T2* 和T1 rho测量值。SPGR和UTE序列最能显示唇纤维结构。退化的上唇有T1值降低、T2/T2* 值升高和T1 ρ值升高的趋势。通过UTE序列获得的T2* 值可以区分正常、轻度退化和重度退化组（p<0.001）。通过UTE技术获得的定量T2* 测量值可用于区分正常、轻度退化和严重退化的上唇。
To implement qualitative and quantitative MR sequences for the evaluation of labral pathology. Six glenoid labra were dissected and the anterior and posterior portions were divided into normal, mildly degenerated, or severely degenerated groups using gross and MR findings. Qualitative evaluation was performed using T1-weighted, proton density-weighted (PD), spoiled gradient echo (SPGR) and ultra-short echo time (UTE) sequences. Quantitative evaluation included T2 and T1rho measurements as well as T1, T2*, and T1rho measurements acquired with UTE techniques. SPGR and UTE sequences best demonstrated labral fiber structure. Degenerated labra had a tendency towards decreased T1 values, increased T2/T2* values and increased T1 rho values. T2* values obtained with the UTE sequence allowed for delineation between normal, mildly degenerated and severely degenerated groups (p<0.001). Quantitative T2* measurements acquired with the UTE technique are useful for distinguishing between normal, mildly degenerated and severely degenerated labra.