High signal renal tumors on DWI: the diagnostic value of morphological characteristics
High signal renal tumors on DWI: the diagnostic value of morphological characteristics
复制标题
DWI 上的高信号肾肿瘤：形态特征的诊断价值
DOI：
10.1007/s00261-018-1728-4
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发表时间：
2018-08
影响因子：
2.4
通讯作者：
Ye Huiyi
中科院分区：
文献类型：
--
作者：
Zhang Hongtao;Pan Jingjing;Shen Yanguang;Bai Xu;Wang Yingwei;Wang Haiyi;Ye Huiyi
目的探讨弥散加权成像(DWI)的形态特征在鉴别肾肿瘤良恶性、肾透明细胞癌(RCC)和非透明细胞肾细胞癌(RCC)中的价值。方法249例肾肿瘤患者，251个肾肿瘤，经组织病理学证实，DWI呈高信号。对于每个肿瘤，两名放射科医生独立评估表观扩散系数(ADC)值和DWI的形态特征。评估由读者确定的定量和定性磁共振成像(MRI)特征的差异。用Mann-Whitney检验比较恶性与良性肾肿瘤、透明细胞与非透明细胞肾细胞癌的ADC值。用卡方检验比较恶性与良性肾肿瘤、透明细胞性与非透明细胞性肾细胞癌的弥散加权像形态特征的比例差异。肾恶性肿瘤的ADC值显著高于良性肾肿瘤(p<； )，透明细胞型肾癌的ADC值显著高于非透明细胞型(p<； )。恶性和良性肾肿瘤的DWI表现在环状、结节状、片状高信号所占比例差异有统计学意义。在均匀高信号下，透明细胞和非透明细胞肾细胞癌的DWI形态特征所占比例差异有统计学意义。结论DWI的形态特征有助于鉴别肾肿瘤。
PurposeTo assess the usefulness of morphological characteristics of diffusion-weighted imaging (DWI) for differentiating malignant renal tumors from benign renal tumors, and clear cell renal cell carcinoma (RCC) from non-clear cell RCC at 3.0 T.MethodsThe study included 249 patients with 251 histopathologically confirmed renal tumors that showed high signal on DWI. For each tumor, two radiologists independently evaluated apparent diffusion coefficient (ADC) values and morphological characteristics of DWI. The differences in the quantitative and qualitative magnetic resonance imaging (MRI) features determined by the readers were assessed. The ADC values between malignant and benign renal tumors and between clear cell and non-clear cell RCC were compared using Mann–Whitney tests. The proportional differences of morphological characteristics of DWI between malignant and benign renal tumors and between clear cell and non-clear cell RCC were compared using Chi-square tests.ResultsThere were no significant differences in the quantitative and qualitative MRI features determined by the readers. The ADC values for malignant renal tumors were statistically significantly higher than those for benign renal tumors (p< 0.05), and the ADC values for clear cell RCC were statistically significantly higher than those for non-clear cell RCC (p< 0.05). The proportion of morphological characteristics of DWI between malignant and benign renal tumors was statistically significantly different at ring, nodular, flaky high signal. The proportion of morphological characteristics of DWI between clear cell and non-clear cell RCC was statistically significantly different at uniform high signal.ConclusionsThe morphological characteristics of DWI are useful in differentiating renal tumors.
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影响因子：
3.3
作者：
Yu, Xiaoduo;Lin, Meng;Zhang, Hongtu
通讯作者：
Zhang, Hongtu
影响因子：
5.9
作者：
Cornelis, F.;Tricaud, E.;Grenier, N.
通讯作者：
Grenier, N.
影响因子：
5.9
作者：
Cornelis, F.;Tricaud, E.;Grenier, N.
通讯作者：
Grenier, N.
影响因子：
2
作者：
H. Mírka;E. Korčáková;J. Kastner;M. Hora;O. Hes;P. Hošek;J. Ferda
通讯作者：
H. Mírka;E. Korčáková;J. Kastner;M. Hora;O. Hes;P. Hošek;J. Ferda
影响因子：
19.7
作者：
Kim, Sooah;Jain, Monica;Taouli, Bachir
通讯作者：
Taouli, Bachir