| 刘小银,刘广健,周智洋,文艳玲,余俊丽,陈瑶,付伸伸,程文捷,郑小迪,王韦力,覃斯,李文儒.经直肠超声与体部线圈磁共振检查对直肠癌T分期的比较研究[J].中国医学影像技术,2015,31(3):420~424 |
| 经直肠超声与体部线圈磁共振检查对直肠癌T分期的比较研究 |
| Comparative study of endorectal ultrasonography and magnetic resonance imaging with body coil in T staging of rectal cancer |
| 投稿时间：2014-10-28 修订日期：2015-01-27 |
| DOI：10.13929/j.1003-3289.2015.03.027 |
| 中文关键词: 腔内超声检查 磁共振成像 直肠肿瘤 肿瘤分期 |
| 英文关键词:Endosonography Magnetic resonance imaging Rectal neoplasms Neoplasm staging |
| 基金项目: |
| 作者 | 单位 | E-mail | | 刘小银 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 刘广健 | 中山大学附属第六医院超声科, 广州 广东 510655 | liugj@mail.sysu.edu.cn | | 周智洋 | 中山大学附属第六医院影像科, 广州 广东 510655 | | | 文艳玲 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 余俊丽 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 陈瑶 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 付伸伸 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 程文捷 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 郑小迪 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 王韦力 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 覃斯 | 中山大学附属第六医院超声科, 广州 广东 510655 | | | 李文儒 | 中山大学附属第六医院影像科, 广州 广东 510655 | |
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| 中文摘要: |
| 目的 比较经直肠超声(ERUS)和体部线圈MRI对直肠癌T分期诊断准确性。方法 回顾性分析31例术前未接受新辅助放化疗的直肠癌患者,对所有患者均于术前1周行ERUS和MR检查、后行一期手术切除。以术后病理结果作为金标准,比较ERUS和MRI对直肠癌T分期的诊断效能。结果 31例患者中,术后病理诊断T1期7例,T2期6例,T3期18例。ERUS显示病变累及肠管长度约(28.18±13.30)mm,MRI显示约为(35.58±18.24)mm,二者差异有统计学意义(t=3.497,P=0.002),但两种检查所测得病变下缘距肛门距离、病灶厚度的差异均无统计学意义(P均>0.05)。ERUS诊断直肠癌T1、T2、T3、T4期的准确率分别为93.55%,93.55%,87.10%和100%,总准确率为93.55%;MRI诊断直肠癌T1、T2、T3、T4期的准确率分别为87.10%,70.97%,64.52%和93.55%,总准确率为79.03%;ERUS、MRI诊断的直肠癌各期以及总准确率的差异均无统计学意义(P均>0.05)。结论 ERUS和MRI均为直肠癌术前分期诊断的可靠检查方法,ERUS对于T分期的准确性稍高于MRI。 |
| 英文摘要: |
| Objective To compare the accuracy between endorectal ultrasonography (ERUS) and MRI with body coil in T staging of rectal cancer. Methods A total of 31 patients had accepted both preoperative ERUS and MRI examination within a week and confirmed with rectal cancer by surgery were enrolled in the study. All the patients with preoperative neoadjuvant chemoradiation therapy were excluded. The results of ERUS and MRI were compared with the pathologic findings as gold standard. Results The final pathological T staging was T1 in 7 patients, T2 in 6 patients and T3 in 18 patients. The longitudinal dimension of the tumor measured by ERUS was (28.18±13.30)mm, while it was (35.58±18.24)mm measured by MRI, and there was significant difference (t=3.497, P=0.002). However, there was no significant difference between ERUS and MRI in the depth of the tumor and the distance from lower margin of tumor to anal verge (both P>0.05). The diagnostic accuracy of T1, T2, T3, T4 staging for ERUS was 93.55%, 93.55%, 87.10%, 100%, respectively, and the overall accuracy was 93.55%. The diagnostic accuracy of T1, T2, T3, T4 staging for MRI was 87.10%, 70.97%, 64.52%, and 93.55%, respectively, and the overall accuracy was 79.03%. There was no significant difference between ERUS and MRI in the diagnostic accuracy of T1, T2, T3, T4 staging and overall accuracy (all P>0.05). Conclusion Both ERUS and MRI could be used for preoperative T staging of rectal cancer with high diagnostic accuracy, whereas ERUS showed slightly higher accuracy compared to MRI. |
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