| 朱凯,王卉,朱力,郭玉林.MR肝脏快速容积采集序列分期诊断胃癌[J].中国医学影像技术,2013,29(11):1842~1845 |
| MR肝脏快速容积采集序列分期诊断胃癌 |
| MR liver acquisition with volume acceleration sequence in staging diagnosis of gastric cancer |
| 投稿时间：2013-02-14 修订日期：2013-04-23 |
| DOI： |
| 中文关键词: 胃肿瘤 磁共振成像 诊断显像 |
| 英文关键词:Stomach neoplasms Magnetic resonance imaging Diagnostic imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨肝脏快速容积采集(LAVA)序列在MR胃癌分期诊断中的应用价值。方法 对经胃镜病理证实的29例胃癌行术前MR检查,采用单次激发快速自旋回波(SSFSE)序列、双回波扰相梯度同反相位序列(SPGR-dual echo)及LAVA序列扫描,比较不同序列的图像质量及T分期诊断准确率。结果 3个序列图像质量评分差异有统计学意义,LAVA序列对肿瘤和邻近器官的显示及伪影评分优于SSFSE和SPGR-dual echo序列;LAVA序列T分期诊断准确率最高,为82.76%(24/29)。结论 MR LAVA序列图像质量好,对胃癌T分期诊断准确率高。 |
| 英文摘要: |
| Objective To investigate the value of liver acquisition with volume acceleration (LAVA) sequence in MRI staging of gastric cancer. Methods Twenty-nine patients with gastric cancer confirmed pathologically underwent MR scanning. All the patients were given single shot fast spin echo (SSFSE) sequence, dual echo spoiled gradient recalled echo (SPGR-dual echo) sequence and enhanced LAVA sequence before operation. The imaging quality and diagnostic accuracy of T-staging were analyzed and compared. Results Image quality scores of SSFSE, SPGR-dual echo and LAVA sequences had significantly differences in imaging (P<0.05). The image score of tumor display, adjacent organs display and artifacts in LAVA were better than those of the other two sequences. The diagnostic accuracy of T staging of for LAVA sequence was the highest (the accuracy rate of 82.76% (24/29), higher than that of the other two sequences). Conclusion MR LAVA sequence has good imaging quality and high diagnostic accuracy in T staging of gastric cancer. |
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