Interventional Radiology in Pregnancy Complications: Indications, Technique, and Methods for Minimizing Radiation Exposure

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Abstract
Complications of pregnancy, whether they occur during gestation or postpartum, often pose complex challenges because they affect two patients (mother and fetus or infant) and because both short- and long-term outcomes must be considered in management decision making. Interventional radiologists play a critical role in treating complications such as ectopic implantation, postpartum hemorrhage, symptomatic ovarian cyst, post-cesarean section fluid collection, obstructive uropathy, and vesicouterine fistula. Interventional radiology offers therapeutic options that obviate surgery, thereby minimizing morbidity and mortality and maximizing the potential for fertility preservation. Such options include chemical injection of an ectopic gestational sac, uterine artery embolization, aspiration and drainage, percutaneous nephrostomy, and suprapubic cystostomy catheter placement. All these procedures are performed with the use of radiologic imaging for guidance. The levels of radiation to which the mother and fetus may be exposed during such procedures are of concern because of potential negative effects on long-term health. However, various methods can be used to lower maternal and fetal radiation dose levels to the minimum needed to accomplish the clinical objective.