MR超快速成像序列测量正常胎儿肾脏

发布时间：2018-05-03 12:43

  本文选题：胎儿 + 肾　； 参考：《中国医学影像技术》2017年01期

【摘要】：目的探讨MR超快速成像序列评估正常胎儿肾脏的可行性。方法收集135胎肾脏发育正常胎儿的MR资料,测量肾脏长度(RL)、宽度(RW)、厚度(RT)、肾实质厚度(RPT)、肾盂宽度(RPW)和体积(RV),分析上述参数测量的重复性及其与胎龄(GA)的关系。结果RL、RW、RT、RPT、RPW在2名观察者间、同一观察者2次测量间、MR与超声两种测量方法间均具有较好的一致性,各参数测量值在双侧肾脏间差异无统计学意义(P均0.05)。RL、RW、RT、RPT、RPW、RV与GA均呈正相关(r分别为0.95,0.87,0.86,0.77,0.44,0.90,P均0.001)。在各参数与GA的回归方程中,RL的确定系数最大(R~2=0.90)。结论 MR超快速成像序列用于正常胎儿肾脏检查中具有可行性,可弥补超声检查的不足,为临床决策提供更多有价值的影像学信息。
[Abstract]:Objective to evaluate the feasibility of Mr ultrafast imaging in the evaluation of normal fetal kidney. Methods the MRI data of 135 fetuses with normal kidney development were collected. The length of kidney, the width of RWN, the thickness of RTT, the thickness of renal parenchyma (RPTT), the width of renal pelvis (RPWW) and the volume of RV were measured. The repeatability of these parameters and their relationship with gestational age (GA) were analyzed. Results there was a good agreement between two observers, two measurements of Mr and two methods of ultrasound. There was no significant difference in the values of each parameter between the two kidneys (P > 0.05). RV and GA were positively correlated with the RV and GA, respectively. The mean values of RV and GA were 0. 05%, 0. 770%, 0. 74% and 0. 90% (P = 0. 001), respectively. In the regression equation of each parameter and GA, the determinate coefficient of RL is the highest (R ~ (2) ~ (2)) ~ (0.90) ~ (-1). Conclusion it is feasible to use Mr ultrafast imaging sequence in normal fetal kidney examination, which can make up for the deficiency of ultrasound examination and provide more valuable imaging information for clinical decision-making.
【作者单位】： 天津市中心妇产科医院放射科;
【分类号】：R714.5;R445.2
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本文编号：1838528