The Value Of The Color Doppler Ultrasound In The Diagnosis Of Placenta Previa With Placenta Accreta/increta/percreta

Objective: Discuss the clinic character and perinatal period disposal of placenta previa with placenta adhesion, accreta, increta and percreta. And assessing the value of the color Doppler ultrasound in the diagnosis of placenta previa with placenta accreta/increta/percreta.Method: Retrospectivly analyzing the 228 clinic cases which were ultimately diagnosed placenta previa in the 2^nd hospital of SiChuan university from Jan to Dec 2003.And tracing the 19 prenatal patients who were diagnosed placenta previa by color Doppler ultrasound imige in the 2^nd hospital of SiChuan university from June 2002 to December 2003.Result: â‘  Placenta adhesion and placenta accreta/increta/percreta arerelated to the age and the abortive frequency of the pregnant patient(p<0.05) ,and they are strongly related to the amount of hemrrohage. â‘¡By using the prenatal color Doppler ultrasound imige to diagnose theplacenta previa with placenta accreta/increta/percreta, the positive predictive value is 70.0%;the negative predictive value is 88.89%. It can be used to guide the clinic work.Conclusion :Placenta previor adhesion ,accreta/increta/percreta are related to the age and the abortive frequency of the pregnant patient.They are closely affect the amount of hemrrohage while terminating the pregnancy.Thus threaten the security of the mother and the fetus. Using the prenatal color Doppler ultrasound imige can guide the clinic work to induce the death of the mother and the fetus by induce the unpredictively bleeding while terminating the pregnancy.