Diffusion-weighted echo-planar MR imaging and ADC mapping in the differential diagnosis of ovarian cystic masses: Usefulness of detecting keratinoid substances in mature cystic teratomas
Diffusion-weighted echo-planar MR imaging and ADC mapping in the differential diagnosis of ovarian cystic masses: Usefulness of detecting keratinoid substances in mature cystic teratomas
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DOI：
10.1002/jmri.20369
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发表时间：
2005-08-01
影响因子：
4.4
通讯作者：
Honda, H
中科院分区：
文献类型：
--
作者：
Nakayama, T;Yoshimitsu, K;Honda, H
目的：目的：探讨MR回波平面扩散加权成像（EPDWI）计算表观扩散系数（ADC）值对卵巢囊性肿块的鉴别诊断价值。材料与方法：对131例卵巢囊性肿块（成熟性囊性畸胎瘤54例，子宫内膜囊肿35例，其他良性囊肿4例，良性肿瘤14例，恶性肿瘤24例）进行EPDWI检查。结果：在定性和定量分析中，成熟性囊性畸胎瘤较子宫内膜囊肿及其他良恶性肿瘤信号高，ADC值低（P < 0.0 1），而在EPDWI上信号最高的区域（B = 10 0 0 s/mm 2）和ADC值最低的区域（P < 0.0 1）。
Purpose: To elucidate whether apparent diffusion coefficient (ADC) values calculated from echo-planar diffusion-weighted MR imaging (EPDWI) are useful in the differential diagnosis of ovarian cystic masses.Materials and Methods: EPDWI was performed in 131 patients with ovarian cystic masses (54 mature cystic teratomas, 35 endometrial cysts, four other benign cysts, 14 benign neoplasms, and 24 malignant neoplasms). The areas of the highest signal intensity on EPDWI (b = 1000 seconds/mm(2)) and the lowest ADC values within the cystic component were evaluated.Results: On qualitative and quantitative analyses, mature cystic teratomas tended to show higher signal intensity and had areas of lower ADC values than endometrial cysts and other benign and malignant neoplasms (P