胎盘植入影像学诊断研究进展

Advances in imaging diagnosis of placenta accreta spectrum

胎盘植入性疾病(PAS)是指胎盘绒毛不同程度异常黏附或侵入子宫肌层的疾病,可导致严重产科并发症,包括产后出血、子宫切除、围产期感染等。超声是目前诊断PAS最常用的影像学检查手段,尽管其已被广泛使用,但准确性存在争议;因此,近期涌现出新的影像产前诊断指标。该文旨在从超声征象和磁共振成像(MRI)等方面回顾分析PAS的产前诊断指标,并讨论联合诊断方法及其研究进展。

Placenta accreta spectrum(PAS)refers to a condition where placental villi abnormally adhere to or invade the uterine muscle layer to varying degrees.PAS can lead to severe obstetric complications,including postpartum hemorrhage,hysterectomy and even life-threatening situations.Nowadays,the diagnosis of PAS typically relies on imaging examinations such as ultrasound.Despite the widespread use of ultrasound,its accuracy is a subject of controversy,leading to the emergence of new imaging prenatal diagnostic indicators.This article aims to review prenatal diagnostic indicators of PAS,including ultrasound features and magnetic resonance imaging(MRI).Additionally,we will discuss existing joint diagnostic methods and the latest research findings.