磁共振在前置胎盘伴胎盘植入中的诊断价值

目的探讨磁共振扫描对前置胎盘伴植入的诊断价值。方法23例临床诊断前置胎盘的患者行MRI平扫，术后进行回顾分析。结果胎盘子宫分界正常10例，粘连3例，植入8例，穿通2例。术后及病理诊断为正常6例，粘连4例，植入11例，穿通2例。术前MRI诊断为植入及穿通者，与术后相符，术后诊断为植入者2例报告为粘连，1例报告为正常。术后诊断为粘连者，3例术前报告为正常。结论磁共振对前置胎盘伴有胎盘植入及穿通能提供准确的诊断。

Diagnostic value of MRI for placenta previa with placental implantation

Objective To investigate the MRI diagnostic value for placenta previa with placental implantation. Methods MRI of 23 patients with placenta previa was retrospectively analyzed. Results The boundaries of the placenta were clear from （10）, adherent with （3）, implanted in （8）, or penetrating through （2） the myometrium on MRI. 6 cases were diagnosed as normal after surgery, 4 cases of adhesion, ll cases were implanted, 2 cases of penetrating. The MRI diagnosis of placental implantation （8） and penetration （2） was confirmed operatively. Two cases of implantation were erroneously classified as placental adhesion and 1 case was misinterpreted as normal. 3 out of 4 cases of placental adhesion were missed on MRI. Conclusion MRI is helpful in diagnosing placental implantation.