产前经腹灰阶联合彩色血流超声多参数对胎盘植入性疾病的 诊断效能研究.

Objective: To explore the diagnostic efficacy of prenatal transabdominal gray scale combined with color flow ultrasound for placental implantation diseases. Methods: A total of 62 pregnant women with placenta previa diagnosed by prenatal ultrasound in our hospital from November 2019 -- December 2021, including 44 pregnant women with placenta implantation. All pregnant women underwent transabdominal gray-scale examination, transabdominal color ultrasound and their combination to detect placental implantation diseases. The screening efficiency of transabdominal gray-scale ultrasound combined with color blood flow ultrasound on placental implantation diseases was evaluated by analyzing the screening results of placental implantation diseases. Results: (1) The sensitivity and specificity of detecting placental implantation by gray-scale ultrasound were 73.42 % and 86.54 %; (2) the sensitivity and specificity of detecting placental implantation by color ultrasound were 76.89% and 89.07 %; (3) the sensitivity and specificity of detecting placental implantation by abdominal gray-scale combined with color blood flow ultrasound were 87.79 % and 90.36 %; (4) The positive rates of transabdominal gray scale examination, transabdominal color ultrasound examination and their combined examination in the screening of placental implantation diseases were 56.45 %, 62.90 % and 67.74 % respectively. The positive rates of the two combined examinations in the screening of prenatal placental implantation diseases were significantly higher than those of transabdominal gray scale examination and transabdominal color ultrasound examination (P<0.05). (5) The sensitivity was 72.26 %, the specificity was 90.54 %, the positive ratio was 95.55 %, and the diagnostic odds ratio was 78.89 %. Conclusion: Transabdominal gray scale combined with multi-parameter color flow ultrasound has high sensitivity and specificity in the diagnosis of prenatal placenta implantation diseases, which is worthy of clinical application. [ABSTRACT FROM AUTHOR]