摘要
目的探讨磁共振扩散加权成像(DWI)在诊断妊娠胎盘植入的应用价值。方法选取2012年5月-2014年1月期间住院行剖宫产,术后确诊妊娠胎盘植入患者42例,产前常规MRI检查并同时行DWI,并将胎盘局部外凸区表观扩散系数(ADC)与无异常区胎盘ADC进行统计学比较,并与常规磁MRI检查诊断符合率相比较,分析有无差异。结果胎盘植入区与正常胎盘区ADC差异有统计学意义(P<0.05),并且DWI与常规MRI检查诊断符合率分别为97.6%和69.0%,差异有统计学意义(P<0.05)。结论 DWI通过半定量测量ADC值,结合DWI局部外凸高信号改变,对妊娠胎盘植入较MRI检查更具有临床诊断价值,有助于术前作出正确诊断,为临床治疗提供可靠的依据。
Objective To discuss the value of diffusion weighted imaging （DWI） in the diagnosis of placenta increta. Methods The clinical data of 42 patients with placenta increta admitted to Sichuan Provincial Hospital for Women and Children between May 2012 and January 2014 were retrospectively analyzed. All the patients were examined by prenatal magnetic resonance scans and DWI scans for subsequent comparison between ADC of the local convex placental region and ADC of the normal placental region and between the results of the two imaging methods. Results ADC of the implantation area was significantly different from that of the normal placenta, so it could be used as a quantitative index. DWI had a higher sensitivity of diagnosis than conventional MRI. Conclusion Compared with conventional magnetic resonance imaging, DWI is more valuable in the clinical diagnosis of placenta increta, which provides a reliable basis for clinical treatment.
出处
《华西医学》
CAS
2015年第5期915-918,共4页
West China Medical Journal
关键词
胎盘植入
妊娠
磁共振成像
弥散
Placenta increta
Pregnancy
Magnetic resonance imaging, diffusion
