Enhanced MRI Diagnosis Of Postpartum Placental Residue

Objective:To explore the main imaging findings and diagnostic value of enhanced MRI in the diagnosis of postpartum placental residue.Methods:Retrospective analysis of 58 post-partum post-operative clinical and pathological evidence of enhanced MRI features of placental residue.Measure the size of the uterus and the size of the placenta.Observe T1 and T2 signal intensity of the placenta,the enhancement of residual placental enhancement,the integrity of the plaque with residual attachment,the thickness of myometrium and the signal intensity were observed,the morphology and signal intensity of the surrounding uterus were observed.Results: The sensitivity of enhanced MRI in diagnosis of postpartum placenta without adhesions and implantation,residual placental adhesion,residual placenta accreta and residual penetration of placenta were 86.7%,85.7%,78.6% and 100.0% respectively,and the specificity were 93.0% 90.9%,93.3%,98.2%.The size of the residual tissue was about 36.55mmx28.60mmx35.10mm-98.30mmx68.56mmx135.20 mm,with the equal T1 and long signals.The remaining 10 cases of placenta implantation and 3cases of residual placental adhesions were Myometrial or myometrial and placental tissue between the see multiple thick tortuous vessel shadow;enhanced scanning of13 cases of placental adhesion and residual adhesion without reinforcement,12 cases of residual placental adhesions,22 cases of residual placenta accreta and 1 Cases of residual residual tissue penetration through the placenta was significantly uneven early enhancement.Conclusion : Enhanced MRI can determine the type of residual placenta after implantation,the depth of implantation,the ability to clearly observe postpartum placental residue and its attached surface blood supply.