磁共振短T1信号和ADC值对卵巢病变良恶性的诊断价值  

The diagnostic value of short T1 signal and ADC value in benign and malignant ovarian lesions

作　　者：孟莉[1] 杜嘉宁 沙仁高娃[1] 鲍海华[1] MENG Li;DU Jianing;SHAREN Gaowa;BAO Haihua(Affiliated Hospital Imaging Department of Qinghai University,Xining 810001,China)

机构地区：[1]青海大学附属医院影像科,西宁810001

出　　处：《磁共振成像》2022年第3期83-86,共4页Chinese Journal of Magnetic Resonance Imaging

基　　金：青海省卫生健康系统适宜技术推广项目(编号:2020-wjzdx-56)。

摘　　要：目的 探讨短T1信号卵巢良恶性病变的磁共振信号特点及表观扩散系数(apparent diffusion coefficient,ADC)值对其诊断价值。材料与方法 回顾性研究2019年6月至2020年6月在青海大学附属医院经手术病理证实,并于MRI显示为短T1信号的卵巢良恶性病变患者病例共42例,分析其T1WI图像,观察影像征象并测量病变的最大径、ADC值、肿瘤位置、边界、囊实性、囊壁/分隔、T1信号均匀性,比较两组指标之间差异。结果 42例患者共52个T1高信号病灶。其中39个病灶为良性病变,包括子宫内膜异位囊肿16个、成熟囊性畸胎瘤10个、黄体囊肿7个、黏液性囊腺瘤4个、白体1个及滤泡囊肿伴出血1个;13个病灶为恶性病变,包括浆液性囊腺癌11个、透明卵巢细胞癌1个及颗粒细胞瘤1个。良恶性病灶的最大径、ADC值、囊壁/分隔、囊实性及T1信号均匀性比较,差异具有统计学意义(P<0.05)。结论 磁共振成像对短T1信号卵巢良恶性病变具有一定的鉴别诊断价值,通过掌握其MR特点,可提高卵巢病变术前定性的准确率。Objective: To investigate the magnetic resonance signal characteristics of benign and malignant ovarian lesions with short T1 signal and the diagnostic value of apparent diffusion coefficient(ADC) value. Materials and Methods: A total of 42 patients with benign and malignant ovarian lesions confirmed by surgery and pathology in the Affiliated Hospital of Qinghai University from Jun 2019 to Jun 2020 were selected and their T1 WI images were analyzed. Imaging signs were observed and the maximum diameter, ADC value,tumor location, boundary, cystic firmness, cystic wall/space, and T1 signal uniformity were measured to compare the differences between the two groups. Results: There were 52 T1 hypersignal lesions in 42 patients. Among them, 39 lesions were benign, including 16 endometriosis cysts, 10 mature cystic teratoma, 7 luteal cysts, 4 mucinous cystadenoma, 1 white body and 1 follicular cyst with hemorrhage. Thirteen lesions were malignant, including 11 serous cystadenocarcinoma, 1 clear ovarian cell carcinoma and 1 granulosa cell tumor. There were statistically significant differences in the maximum diameter, ADC value, capsule wall/space, cyst consolidation and T1 signal uniformity between benign and malignant lesions(P<0.05). Conclusions: Magnetic resonance imaging has a certain value in differential diagnosis of benign and malignant ovarian lesions with short T1 signal, and the accuracy of preoperative determination of ovarian lesions can be improved by mastering the MR characteristics.

关 键 词：卵巢病变 磁共振成像 短T1信号 表观扩散系数 病理类型 

分 类 号：R445.2[医药卫生—影像医学与核医学] R711.75[医药卫生—诊断学]