小肠磁共振造影基础序列的探讨  

Discussion on fundamental sequence of MR enterography

作　　者：王朋[1] 张军[1] 李林[1] 刁强[1] 郑玲[1] 

机构地区：[1]南京大学临床医学院、南京军区南京总医院医学影像科,南京210002

出　　处：《医疗卫生装备》2016年第1期65-67,共3页Chinese Medical Equipment Journal

基　　金：南京军区南京总医院基金项目(2013013)

摘　　要：目的 :探讨小肠磁共振造影的基础序列,建立小肠磁共振造影的基础扫描方案。方法 :随机收集进行小肠造影患者15例,分别进行COR-SSFSE-ASSET、COR-LAVA-FLEX各向同性、AX-T2-PROPELLER、AX-LAVA-FLEX、DWI(b=800/1 000/1 500)平扫序列及增强后AX-LAVA-FLEX、AX-LAVA-XV、COR-LAVA-XV各向同性序列扫描。由2名有经验的影像科医生按双盲法独立对图像进行评估,判断各序列的应用价值,确定小肠磁共振造影的基础扫描方案。结果:平扫序列中COR-SSFSE-ASSET、COR-LAVA-FLEX各向同性、AX-T2-PROPELLER、DWI(b=800)序列的图像质量最佳,弥散序列对评估肠炎活动性尤其有价值,增强后的各个序列图像质量均很高,均能很好地满足临床诊断的需要。结论:COR-SSFSE-ASSET、COR-LAVA-FLEX各向同性、AX-T2-PROPELLER、DWI(b=800)和增强后AX-LAVA-FLEX、AX-LAVA-XV、COR-LAVA-XV序列可作为小肠磁共振造影的常规扫描方案。ObjectiveTo investigate the fundamental sequences of MR enterography （MRE） and propose a foundation scan scheme for MRE. Methods Totally 15 patients underwent MRE with plain scan sequences of COR-SSFSE-ASSET, isotropic COR-LAVA-FLEX, AX-T2-PROPELLER, AX-LAVA-FLEX and DWI （b=800/1 000/1 500） as well as isotropic sequences of AX-LAVA-FLEX, AX-LAVA-XV and COR-LAVA-XV after augmentation. Two experienced radiologists applied double-blind method to evaluating images and values of the sequences and to determining the foundation scan scheme for MRE.Results Plain scan sequences of COR-SSFSE-ASSET, isotropic COR-LAVA-FLEX, AX-T2- PROPELLER and DWI （b =800） resulted in the best image quality. Diffusion sequence was of great value for assessing enteritis activity, and augmented sequences led to high-quality images to meet the requirements of clinical diagnosis.Conclosion Conventional MRE may involve in the plain scan sequences of COR-SSFSE-ASSET, isotropic COR-LAVA- FLEX, AX-T2-PROPELLER and DWI （b=800） as well as augmented sequences of AX-LAVA-FLEX, AX-LAVA-XV and COR-LAVA-XV.

关 键 词：小肠 磁共振 磁共振造影 LAVA序列 弥散 信噪比 

分 类 号：R445.2[医药卫生—影像医学与核医学] R310[医药卫生—诊断学]