| 赵闯绩.肝泡型包虫病DWI病变特征及诊断价值[J].中国医学影像技术,2017,33(S1):46~49 |
| 肝泡型包虫病DWI病变特征及诊断价值 |
| Manifestations and diagnostic value of DWI in hepatic alveolar echinococcosis |
| 投稿时间：2017-10-13 修订日期：2017-11-20 |
| DOI：10.13929/j.1003-3289.2017065 |
| 中文关键词: 棘球蚴病,肝 扩散磁共振成像 表观扩散系数 |
| 英文关键词:Echinococcosis,hepatic Diffusion magnetic resonance imaging Apparent diffusion coefficient |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨肝脏泡型包虫病DWI的影像特征。方法 回顾性分析24例肝脏泡型包虫病患者资料。对所有患者行自由呼吸扩散加权单次激发平面回波成像序列（b值为200、600、800 s/mm2）扫描。评估病变大小、位置、囊性和/或软组织成分，测量病灶ADC值。结果 24例患者平均病变数目为1.6个/例，平均最大径（4.6±1.2） cm。病灶位于肝右叶16例，位于肝左叶8例。b值为800 s/mm2时，病变囊性坏死部分ADC值为（2.98±0.86）×10－3 mm2/s，实性部分ADC值为（1.84±0.52）×10－3 mm2/s。囊性病变DWI呈低信号6例，呈明显高信号16例，呈混杂信号2例；实性病变DWI均低信号病灶。结论 肝脏泡型包虫病DWI可清晰显示病灶结构，对诊断该病有一定价值。 |
| 英文摘要: |
| Objective To evaluate the DWI manifestations of hepatic alveolar echinococcosis. Methods Data of 24 cases with hepatic alveolar echinococcosis were analyzed retrospectively. The DWI single excitation plane echo imaging sequence (b value of 200, 600, 800 s/mm2) was scanned. The lesion size, location, cystic and/or soft tissue components were assessed, the ADC value of the lesions were measured. Results The average number of lesions in 24 patients were 1.6 per case with an average diameter of (4.6±1.2)cm. The lesions was located right lobe of the liver in 16 cases and 8 cases in the left lobe of the liver. When b value was 800 s/mm2, the ADC value of cystic necrosis lesions was (2.98+0.86)×10-3 mm2/s, and the ADC value of real part was (1.84±0.52)×10-3mm2/s. There were 6 cases with low signal of DWI and 16 cases with high signal, and 2 cases with mixed signal of DWI were observed. All cases showed low signal in DWI. Conclusion DWI can clearly show the lesion's structure and has some value in diagnosis. |
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