胆脂瘤的检测：二维刀锋式涡轮梯度与自旋回波成像对比读出分段回波平面扩散加权成像
Detection of cholesteatoma: 2D BLADE turbo gradient- and spin-echo imaging versus readout-segmented echo-planar diffusion-weighted imaging.
作者信息
Lin Mengyan, Lin Naier, Sheng Yaru, Sha Yan, Zhang Zhongshuai, Zhou Kun
机构信息
Shanghai Institute of Medical Imaging, Shanghai, 200032, China.
Department of Radiology, Eye & ENT Hospital of Fudan University, 83 Fenyang Road, Shanghai, 200031, China.
出版信息
Eur Arch Otorhinolaryngol. 2022 Nov;279(11):5223-5229. doi: 10.1007/s00405-022-07370-2. Epub 2022 Apr 28.
PURPOSE
This study is to compare the accuracy of 2D BLADE turbo gradient- and spin-echo imaging (TGSE BLADE) diffusion-weighted imaging (DWI) with that of readout-segmented echo-planar (RESOLVE) DWI in the detection of primary and residual/recurrent temporal bone cholesteatoma.
METHODS
The prospective study population consisted of 58 patients who were underwent magnetic resonance (MR) imaging for the evaluation of suspected temporal bone cholesteatoma. Two radiologists independently evaluated the two sequences. Kappa (k) statistics, the intra-class correlation coefficient (ICC), and a paired t test were used for statistical analysis.
RESULTS
Of the 58 patients included, all had histo-pathologically confirmed cholesteatomas. In ≤ 3 mm group (n = 13), TGSE BLADE sequence correctly identified all cases except one that was recorded as equivocal on both sequences because of high signal intensity on T1WI; while on RESOLVE sequences, 6 were positive, 4 were equivocal, and 3 were false negative. For > 3 mm group (n = 45), detection performance was similar between the two sequences. The mean ADC of cholesteatoma on TGSE BLADE DWI was 0.923 × 10 mm/s, and the mean ADC of cholesteatoma on RESOLVE DWI was 0.949 × 10 mm/s, with no significant difference in the mean ADC values of cholesteatoma measured on the two sequences (p = 0.9216).
CONCLUSION
TGSE BLADE outperforms RESOLVE in the detection of small temporal bone cholesteatoma ≤ 3 mm.
目的
本研究旨在比较二维刀锋式涡轮梯度回波与自旋回波成像（TGSE BLADE）扩散加权成像（DWI）和读出分段回波平面成像（RESOLVE）DWI在检测原发性及残留/复发性颞骨胆脂瘤方面的准确性。
方法
前瞻性研究纳入58例因疑似颞骨胆脂瘤而接受磁共振（MR）成像检查的患者。两名放射科医生独立评估这两种序列。采用Kappa（k）统计量、组内相关系数（ICC）和配对t检验进行统计分析。
结果
纳入的58例患者均经组织病理学证实患有胆脂瘤。在≤3 mm组（n = 13）中，TGSE BLADE序列正确识别了所有病例，除了1例因T1WI上信号强度高而在两种序列上均记录为可疑；而在RESOLVE序列上，6例为阳性，4例为可疑，3例为假阴性。对于>3 mm组（n = 45），两种序列的检测性能相似。TGSE BLADE DWI上胆脂瘤的平均表观扩散系数（ADC）为0.923×10⁻³mm²/s，RESOLVE DWI上胆脂瘤的平均ADC为0.949×10⁻³mm²/s，两种序列测量的胆脂瘤平均ADC值无显著差异（p = 0.9216）。
结论
在检测≤3 mm的小颞骨胆脂瘤方面，TGSE BLADE优于RESOLVE。
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