Publications by authors named "Sarah Happe"
Objectives: Ultrasound (US) prediction of placenta accreta spectrum (PAS) in the first trimester may be aided by postprocessing mechanisms employing color pixel quantification near the bladder-uterine serosal interface. Our objective was to create a postprocessing algorithm of color images to identify findings associated with PAS and compare quantification to sonologist impression in prospectively obtained cine US images.
Methods: Transverse transvaginal (TV) US color cines obtained in the first trimester as part of a prospective study were reviewed.
Objectives: The placenta accreta spectrum (PAS) incidence has risen substantially over the past century, paralleling a rise in cesarean delivery (CD) rates. Prenatal diagnosis of PAS improves maternal outcomes. The Placenta Accreta Index (PAI) is a standardized approach to prenatal diagnosis of PAS incorporating clinical risk and ultrasound (US) findings suggestive of placental invasion.
View Article and Find Full Text PDFObjectives: To prospectively evaluate low implantation of the gestational sac and other first-trimester ultrasound (US) parameters for prediction of placenta accreta spectrum (PAS).
Methods: Women with a diagnosis of low implantation on clinically indicated first-trimester US underwent a transvaginal US examination at 10 to 13 weeks' gestation to assess the trophoblast location, anechoic areas, bridging vessels, and smallest myometrial thickness (SMT). The placental location was evaluated in the second trimester, and serial US examinations were performed in cases of low placentation.
The purpose of this study is to determine whether MRI parameters of placenta accreta spectrum correlate with pathologic and surgical outcomes in high-risk pregnancies. This retrospective study evaluated second- and third-trimester pregnancies assessed by MRI from 2007 to the present. Women were included in the study if placental invasion was suspected on the basis of a clinical history of cesarean delivery, ultrasound findings, or both.
View Article and Find Full Text PDFBackground: Placenta accreta spectrum (PAS) in women with previous cesarean delivery has become increasingly prevalent. Depending on the severity, patient management may involve cesarean hysterectomy.
Purpose: To investigate textural analyses as the radiomics in MRI of the placenta in predicting the PAS requiring cesarean hysterectomy in a high-risk population.
Background: Microangiopathic disorders during pregnancy remain a diagnostic challenge because these conditions often imitate more common obstetric diseases.
Case: A 31-year-old multigravid woman delivered at term with a postpartum course complicated by laboratory indices consistent with hemolysis, elevated liver enzymes, and low platelet count syndrome. After clinical recovery, she was readmitted 2 weeks after delivery with presumptive pyelonephritis.
Sonography interval and the diagnosis of twin-twin transfusion syndrome.
J Matern Fetal Neonatal Med
March 2017
Objective: To evaluate the relationship between sonography surveillance interval and Quintero stage at diagnosis.
Methods: This was a retrospective cohort study of monochorionic diamniotic pregnancies diagnosed with twin-twin transfusion syndrome (TTTS) and followed with serial sonography between 1997 and 2013. Women were divided into three cohorts: diagnosis at initial second-trimester sonogram, at a sonogram within 14 d of the prior exam, and at a sonogram greater than 14 d from the prior exam.
The natural history of twin-twin transfusion syndrome stratified by Quintero stage.
J Matern Fetal Neonatal Med
November 2016
Objective: To describe the natural history of expectantly managed twin-twin transfusion syndrome (TTTS) specific to disease stage.
Methods: This was a retrospective study of monochorionic diamniotic pregnancies diagnosed with TTTS and delivered between 1997 and 2013. Staging was based on Quintero's criteria, with sonogram images reviewed to confirm findings specific to stage.