磁共振弥散张量成像在足月窒息新生儿预后评估中的作用  被引量:5

Role of magnetic resonance diffusion tensor imaging on prognostic evaluation of term neonates with asphyxia

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作  者:李红新[1] 张琴芬[1] 江凯华[2] 王乾 于敏 董选[2] 屠文娟[1] 

机构地区:[1]南通大学附属常州儿童医院新生儿科,江苏常州213003 [2]南通大学附属常州儿童医院儿童健康研究中心,江苏常州213003 [3]上海交通大学生物医学工程学院,200240

出  处:《中华实用儿科临床杂志》2017年第18期1406-1411,共6页Chinese Journal of Applied Clinical Pediatrics

基  金:江苏省妇幼健康科研项目(F201612);常州市科技支撑计划(CE20165027);常州市卫计委重大科技项目(ZD201515);常州市高层次卫生人才培养工程资助

摘  要:目的 探讨磁共振弥散张量成像(DTI)在轻、重度足月窒息新生儿预后评估中的作用。方法 收集2013年1月至2015年12月在南通大学附属常州儿童医院新生儿科住院的25例窒息新生儿,其中轻度窒息组11例和重度窒息组14例;另将10例无脑损伤的足月儿设为对照组。所有患儿行颅脑常规磁共振和DTI检查,获取研究对象的7个感兴趣区(ROI)的表观弥散系数分数(ADC)值、各向异性(FA)值和体素量,以及白质纤维数量,分析不同程度窒息之间的差异,并对FA值与新生儿神经行为测定(NBNA)评分相关性进行分析。结果 1.丘脑FA值在对照组左、右两侧为0.54±0.08、0.56±0.15,在轻度窒息组为0.45±0.03、0.44±0.10,在重度窒息组为0.21±0.11、0.25±0.13;内囊后肢FA值在对照组左、右两侧为0.49±0.09、0.48±0.08,在轻度窒息组为0.37±0.08、0.38±0.03,在重度窒息组为0.20±0.04、0.19±0.13;丘脑和内囊后肢FA值在3组间差异有统计学意义(F=9.12、9.11、8.18、8.55,均P〈0.05)。上纵束体素量在对照组左、右两侧为1 094±112、1 123±113,在轻度窒息组为986±111、1 009±144,在重度窒息组为450±116、671±126;内囊前肢体素量在对照组左、右两侧为947±104、1 237±184,在轻度窒息组为854±118、799±114,在重度窒息组为324±110、311±126;内囊后肢体素量在对照组左、右两侧为2 047±129、2 137±238,在轻度窒息组为1 843±233、1 753±247,在重度窒息组为867±118、999±167;上纵束、内囊前肢和内囊后肢体素量在3组间差异有统计学意义(F=10.11、9.45、7.33、8.45、12.65、11.23,均P〈0.05)。扣带回白质纤维数量在对照组左、右两侧为245±72、405±94,在轻度窒息组为225±52、365±114,在重度窒息组为145±62、185±84;上额枕束白质纤维数量在对照组左、右两侧为56±19、212±33,在轻度窒息组为49±22、197±33,在重度窒�Objective To discuss the prognostic evaluation of magnetic resonance diffusion tensor imaging (DTI)in term neonates with mild and severe asphyxia.Methods Eleven neonates with mild asphyxia, 14 neonates with severe asphyxia and 10 control neonates were studied.All the neonates were examined by conventional magnetic resonance imaging(MRI) and DTI.Fraction anisotropy (FA) values, apparent diffusion coefficient (ADC) values, voxel numbers and fiber numbers were calculated in seven regions of interest(ROI) and compared among the 3 groups.The correlation between FA values and neonatal behavioral neurological assessment(NBNA)scores were analyzed.Results (1) FA values in the left and the right thalamus were 0.54±0.08 and 0.56±0.15 in control group, 0.45±0.03 and 0.44±0.10 in mild group, and 0.21±0.11 and 0.25±0.13, respectively in severe group .FA values in posterior limbs of internal capsule were 0.49±0.09 and 0.48±0.08 in control group, 0.37±0.08 and 0.38±0.03 in mild group, and 0.20±0.04, 0.19±0.13 in severe group; FA values in thalamus and posterior limbs of internal capsule had statistical differences among the 3 groups(F=9.12, 9.11, 8.18, 8.55, all P〈0.05). Voxel numbers in the left and the right superior longitudinal fasciculus were 1 094±112 and 1 123±113 in control group, 986±111 and 1 009±144 in mild group, 450±116 and 671±126 in severe group.Voxel numbers in anterior limbs of internal capsule were 947±104 and 1 237±184 in control group, 854±118 and 799±114 in mild group, 324±110 and 311±126 in severe group.Voxel numbers in posterior limbs of internal capsule were 2 047±129 and 2 137±238 in control group, 1 843±233 and 1 753±247 in mild group, 867±118 and 999±167 in severe group.Voxel numbers in superior longitudinal fasciculus, anterior and posterior limbs of internal capsule had statistical differences among the 3 groups(F=10.11, 9.45, 7.33, 8.45, 12.65, 11.23, all P〈0.05); Fiber numbers in the left and the right cingulate gyrus were 245±7

关 键 词:婴儿 新生 窒息 弥散张量成像 各向异性 白质纤维束成像 

分 类 号:R445.2[医药卫生—影像医学与核医学]

 

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