| MR弥散加权成像对乳腺病变的诊断研究 |
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| 引用本文： | 韩明山,张通,王国华.MR弥散加权成像对乳腺病变的诊断研究[J].泰山医学院学报,2011,32(4):250-253. |
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| 作者姓名： | 韩明山 张通 王国华 |
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| 作者单位： | 1. 青岛大学医学院,山东,青岛,266071;泰山医学院附属泰山医院,山东,泰安,271000
2. 青岛市立医院,山东,青岛,266071 |
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| 摘 要： | 目的探讨MR弥散加权成像及表观弥散系数在乳腺病变诊断中的价值。方法对56例64个病灶经病理证实的乳腺疾病患者行磁共振弥散加权成像检查。DW-MRI采用单次激发平面回波成像技术,弥散敏感系数取b=800 s/mm2。比较良、恶性病变、正常腺体间ADC值差异的统计学意义。确定恶性病变的ADC阈值并用于病例诊断。结果磁共振的DWI对乳腺病变的显示良好。在b=800 s/mm2时,正常腺体、良、恶性肿瘤的ADC值差异有显著性（P〈0.05）。恶性病变平均ADC值为（1.12±0.21）×10？3mm2/s,95%可信区间为（0.854,1.106）×10？3mm2/s。把恶性肿瘤95%可信区间上界1.106×10？3mm2/s定为良恶性病变ADC值的阈值,诊断敏感性为91.7%,特异性为85.7%。结论 DWI对良恶性病变的诊断有较高的敏感性和特异性,推荐作为常规检查序列之。ADC值是诊断乳腺病变有价值的参数。
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| 关 键 词： | 诊断 磁共振成像 弥散加权成像 表观弥散系数 乳腺肿瘤 |
The diagnosis value of diffusion-weighted MR imaging of breast lesions |
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| HAN Ming-shan,ZHANG Tong,WANG Guo-hua.The diagnosis value of diffusion-weighted MR imaging of breast lesions[J].Journal of Taishan Medical College,2011,32(4):250-253. |
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| Authors: | HAN Ming-shan ZHANG Tong WANG Guo-hua |
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| Institution: | HAN Ming-shan1,2 ZHANG Tong3 WANG Guo-hua3 (1.Medical College of Qingdao University,Qingdao 266071,China,2.Taian City Central Hospital,Taian 271000,3.Qingdao Municipal Hospital,China) |
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| Abstract: | Objective: To evaluate the value of apparent diffusion coefficient(ADC) of diffusion weighted MR imaging in diagnosing breast cancer.Methods: Fifty-six patients were enrolled in this study and verified by histopathology.The apparent diffusion coefficient(ADC) of malignant and benign lesions on DW-MRI were measured respectively,and their differentiations in statistics were compared.Results: There were significant differences in the ADC values of normal breast gland,benign and malignant lesions.The ADC of mal... |
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| Keywords: | dagnosis MRI WI ADC breast neoplasm |
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