论著-头颈部
CT动态增强与MRI平 扫诊断肝脓肿价值 的临床对比研究*
作者:杨 利1 吴晓生2
所属单位:1.河北省衡水第四人民医院放射科 (河北 衡水 053000) 2.河北省衡水精神病院放射科 (河北 衡水 053000)
PDF摘要
目的 对比CT动态增强扫描与MR 平扫两种方式诊断肝脓肿的临床价值。方 法 随机选取我院2014年6月至2015年6月 期间因腹部不适行增强CT和MRI平扫检查 的患者62例,其中有29例确诊为肝脓肿。 结果 CT动态增强检出病变个数高于MRI检 出病变个数,且两者差异具有统计学意义 (P<0.05);CT动态增强检测肝脓肿病灶 的能力高于MRI,且两者差异具有统计学 意义(P<0.05);MRI图像上测出肝脓肿内 部坏死囊腔与周围实性肿块面积比值相对 较小,测出肝脓肿的内部坏死囊腔与周围 水肿组织面积比值相对较大;成脓早期四 种感染途径CT增强和MRI平扫影像表现存 在不同之处。结论 CT动态增强扫描与MRI 平扫对于诊断肝脓肿都有其优点与不足之 处,两者配合使用具有较高的诊断价值。
Objective To investigate the clinical effect of enhanced CT and MRI plain scan in the diagnosis of hepatic abscess. Methods A total of 62 cases with abdominal discomfort in our hospital from June 2014 to June 2015 were selected and given enhanced CT and MRI plain scan, and 29 cases were diagnosed as hepatic abscess. Results The number of lesions detected by enhanced CT was higher than that detected by MRI, and the difference was statistically significant (P<0.05). The ability of enhanced CT to detect liver abscess was higher than that of MRI, the difference was statistically significant (P<0.05). The ratio of necrotic cystic cavity to solid mass around liver abscess was relatively small, and the ratio of necrotic cystic cavity to surrounding edema tissue area in liver abscess was larger on MRI images. There are differences in imaging findings between the four routes of infection at the early stage of abscess formation. Conclusion Enhanced CT and MRI plain scan have their advantages and disadvantages in diagnosis of liver abscess, and they have high diagnostic value in combination.
【关键词】肝脓肿;CT动态增强;MRI平扫
【中图分类号】R814.42;R73
【文献标识码】A
【DOI】 10.3969/j.issn.1672- 5131.2018.03.021
前言
肝脓肿是由细菌、真菌或溶组织阿米巴原虫等多种微生物引起的 肝脏化脓性病变[1-2],可由细菌直接侵入腹腔内感染蔓延而引起,也可 以因为脐部感染经脐血管,门静脉而入肝脏,胆道蛔虫同样可成为引 起细菌性肝脓肿的诱因[3]。发病率在0.007%~0.04%之间,若不积极治 疗,死亡率可高达10%~30%[4]。因此,及时诊断和趁早治疗对降低肝 脓肿的发病率和死亡率意义重大。CT及MRI是目前用于肝脓肿的主要检 查方法,前者扫描速度快,后者软组织分辨率高,本研究旨在分析增 强CT与MRI两种方式对于诊断肝脓肿的临床价值对比。
中国CT和MRI杂志
第16卷, 第 3 期
2018年03月
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