多层螺旋 CT MIP-MPR 成像对结肠癌周围淋巴结转移的诊断价值  

The diagnostic value of multi-slice spiral CT MIP-MPR image in the lymph node metastasis of colonic carcinoma

作　　者：朱力平[1] 唐健[1] 

机构地区：[1]无锡市第三人民医院南通大学附属第三医院影像科,江苏无锡214041

出　　处：《实用放射学杂志》2014年第12期2004-2006,共3页Journal of Practical Radiology

摘　　要：目的：探讨多层螺旋（MSCT）最大密度投影-多平面重组（MIP-MPR）技术对结肠癌周围局部淋巴结检出的价值。方法回顾性分析本院经手术病理证实的33例结肠癌的 MSCT 原始影像资料,患者均采用256层螺旋 CT 行三期动态增强扫描,将薄层容积扫描数据在工作站进行后重组处理,获得兴趣区的 MPR 和 MIP-MPR 图像,计算结肠癌周围局部淋巴结的数量,2种方式图像均在相同层面,依据淋巴结的大小分成3组（短径分别为3.0~5.0 mm、5.1~10 mm,10.1 mm 以上）,采用配对检验比较2种成像技术对不同组别淋巴结检出的敏感性。结果 MSCT MPR 与 MIP-MPR 在3组检出淋巴结均数（x ±s ）分别为：1组3.66±1.99,6.09±2.44,t=11.6,P 值0.000.05。前2组 P 值0.05,无统计学差异。MIP-MPR 技术在对结肠癌周围局部小、中淋巴结检出的敏感性较常规 MPR 高。结论MSCT MIP-MPR 是对结肠癌周围局部较小淋巴结检出较好的技术。Objective To explore the diagnostic value of multi-slice spiral CT MIP-MPR image in regional lymph node metastasis of colonic carcinoma.Methods CT findings of 33 cases with pathological confirmed colonic carcinoma were analyzed retrospectively . All patients were underwent three-phase 256-slice CT dynamic enhancement scanning.All data were processed in workstation,to obtain routine MPR and MIP-MPR image.The regional lymph nodes of colon cancer were counted,and divided into 3 groups accord-ing to the short diameter of lymph node：group I （3.0-5.0 mm）,group Ⅱ（5.1-10 mm）,and group Ⅲ（10.1 mm up）.The diag-nostic sensitivity of CT MPR and MIP-MPR image in checking out lymph nodes of different groups was compared by paired test.Re-sults The average value（x ±s ）of lymph node number of three groups with routine MPR and MIP-MPR image were：group I, 3.66±1.99,6.09±2.44 （t=1 1.6,P 0.05）.There were statistical differences in group I and group Ⅱ.Sensitivity of MIP-MPR image in chec-king out regional small and middle lymph nodes of colonic carcinoma was higher than routine MPR image.Conclusion Multi-slice spiral CT MIP-MPR image is a good way to checking out regional small and middle lymph nodes of colonic carcinoma.

关 键 词：结肠癌 计算机体层成像 多平面重建 

分 类 号：R735.35[医药卫生—肿瘤] R814.42[医药卫生—临床医学]