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前置胎盘是妊娠中晚期出血原因之一,系妊娠晚期并发症,严重威胁母婴生命。用B型超声(B超)检查妊娠中晚期不明原因的出血患者,可作出明确诊断,为临床提供结束分娩方式的可靠依据。本院用B超诊断为前置胎盘者13例,现将初步体会报告如下。一、资料与方法本文45例均系1981年以来临床拟诊为前置胎盘的患者,共中门诊5例,住院40例;妊娠期为26～40周,均有阴道流血及腹部隐痛等临床表现。所用仪器为美国ADR-2130型、日本AlokaSSD-256型超声实时显像仪,频率为3.5和5.0兆赫。探查时患者取仰卧位,膀胱中度充盈,以便充分
Placenta previa is one of the causes of bleeding in the second trimester, the complications of late pregnancy, a serious threat to maternal and infant life. With B-mode ultrasound (B-ultrasound) to check for unexplained bleeding in the second trimester of pregnancy, a definitive diagnosis can be made to provide a reliable basis for clinical delivery mode. The hospital with B-ultrasound diagnosis of placenta previa in 13 cases, now the preliminary experience report is as follows. First, the data and methods of 45 cases are from the clinical diagnosis of patients with placenta previa since 1981, a total of 5 outpatient clinics, hospitalization 40 cases; 26 to 40 weeks of pregnancy, both vaginal bleeding and abdominal pain and other clinical which performed. Instruments used for the United States ADR-2130 type, Japan AlokaSSD-256 ultrasonic real-time imaging at 3.5 and 5.0 MHz. Patient in the exploration when supine, moderate bladder filling, in order to fully