| 磁共振T2WI 3D-SPACE序列在直肠癌术前分期中的应用 |
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| 引用本文： | 孙朋涛,都雪朝,闫玉昌,炼宇飞,刘晨鹏,潘振宇.磁共振T2WI 3D-SPACE序列在直肠癌术前分期中的应用[J].CT理论与应用研究,2021,30(3):340-346. |
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| 作者姓名： | 孙朋涛 都雪朝 闫玉昌 炼宇飞 刘晨鹏 潘振宇 |
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| 作者单位： | 1. 首都医科大学附属北京世纪坛医院放射中心, 北京 100038; |
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| 摘 要： | 目的:探讨T2WI 3D-SPACE联合EPI DWI成像技术在直肠癌术前评估中的应用价值。方法:回顾性收集2018年1月1日至2019年8月30日于我院行直肠磁共振（MR）扫描的直肠癌患者36例纳入本组研究，扫描三方位高分辨T2WI序列、T2WI 3D-SPACE序列、EPI DWI序列。分别计算高分辨T2WI序列联合EPI DWI序列（A组）、T2WI 3D-SPACE序列联合EPI DWI序列（B组）对直肠癌T分期的敏感性、特异性及准确性，并采用McNemar检验比较两组序列总的T分期准确性有无显著性差异。结果:两组序列分别与术后病理结果对照，B组序列T1、T2期准确性稍高于A组序列，两组序列总的T分期准确性分别为68.75%和71.88%，差异无统计学意义（P>0.05）。结论:T2WI 3D-SPACE序列联合EPI DWI序列对直肠癌T分期的准确率与高分辨T2WI序列联合EPI DWI序列相比无统计学差异，可作为直肠癌MRI常规术前评估序列。
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| 关 键 词： | 直肠癌 磁共振成像 T2WI3D-SPACE序列 |
| 收稿时间： | 2020-01-04 |
Application of T2WI 3D-SPACE Imaging in Preoperative Evaluation of Rectal Cancer |
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| SUN Pengtao,DU Xuechao,YAN Yuchang,LIAN Yufei,LIU Chenpeng,PAN Zhenyu.Application of T2WI 3D-SPACE Imaging in Preoperative Evaluation of Rectal Cancer[J].Computerized Tomography Theory and Applications,2021,30(3):340-346. |
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| Authors: | SUN Pengtao DU Xuechao YAN Yuchang LIAN Yufei LIU Chenpeng PAN Zhenyu |
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| Affiliation: | 1. Department of Radiology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China;2. Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100043, China |
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| Abstract: | Objective: To explore the value of T2WI 3D-SPACE combined with EPI DWI imaging in preoperative evaluation of rectal cancer. Methods: A total of 36 patients with rectal cancer who underwent MR scan from January 2018 to August 2019 were enrolled in this study. The scan protocol includes: three-dimensional highresolution T2WI sequences, T2WI 3D-SPACE and RS-EPI DWI sequence. The sensitivity, specificity and accuracy of T-staging of high-resolution T2WI combined with DWI(Group A sequences) and T2WI 3D-SPACE combined with DWI(Group B sequences) were calculated respectively. McNemar test was used to compare the accuracy of total T-staging between the two groups. Results: T staging of the two groups were compared with postoperative pathological findings. The accuracy in the T1 and T2 stages of the Group B sequences was slightly higher than the Group A sequences. The total T staging accuracy of the Group A and B sequences were 68.75% and 71.88% respectively. The difference was not statistically significant(P>0.05). Conclusion:The accuracy of T2WI 3D-SPACE sequence combined with EPI DWI sequence for T staging of rectal cancer is not statistically different from that of high-resolution T2WI sequence combined with EPI DWI sequence. Therefore, T2WI 3D-SPACE sequence can be routinely used for preoperative evaluation of rectal cancer. |
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