Publications by authors named "Heron Werner"

To investigate the association between prenatal ultrasonographic markers of macrossomia and C-peptide, a neonatal hyperinsulinemia marker, in pregnancies complicated by gestational diabetes mellitus (GDM), with a focus on fetal adipose tissue thickness, liver length, and interventricular septal thickness. : This prospective cohort study included 223 pregnant women followed from 28 to 36 weeks of gestation in two referral centers in Brazil. The GDM group and matched controls underwent serial ultrasound assessments of fetal biometry, including thigh, abdominal, and subscapular skinfolds, fetal liver length, and interventricular septum thickness.

View Article and Find Full Text PDF

Extended reality (XR) technologies, including virtual reality (VR), augmented reality (AR), and mixed reality (MR), hold transformative potential for radiology. This review examines the current applications, benefits, limitations, and future prospects of XR in radiology, with a focus on education, diagnostics, interventional procedures, and patient interaction. A comprehensive literature search of PubMed, Scopus, and Web of Science databases identified relevant publications from 1992 to 2024.

View Article and Find Full Text PDF

Zika virus (ZIKV) is a mosquito-borne flavivirus of the family Flaviviridae. The association between ZIKV and microcephaly was first described in Brazil in 2015. The risk of vertical transmission occurs in pregnant women with or without symptoms, and the risk of malformation appears to be worse when infection occurs in the first and second trimesters of pregnancy.

View Article and Find Full Text PDF

To analyze the microscopic anatomy of the human uterine cervix in two-dimensional (2D) and three-dimensional (3D) images obtained by microtomography (microCT). Human uterine cervixes surgically removed for benign gynecologic conditions were immersed in formalin and iodine solution for more than 72 h and images were acquired by microtomography. In total, 10 cervical specimens were evaluated.

View Article and Find Full Text PDF

In the previous published reviews Part 1 and Part 2, we examined the association between placental and umbilical cord anomalies in relation to adverse perinatal outcomes. In this conclusive Part 3, only umbilical cord vascular anomalies are considered, together with the perinatal effects caused by maternal vascular malperfusion and the secondary fetal vascular malperfusion anomalies. Specifically, the review comprises the following umbilical cord pathologies: umbilical cord torsion/stricture, amniotic band syndrome and umbilical cord strictures/strangulation, umbilical cord hemorrhagic cyst, umbilical cord rupture/cord hemangioma, umbilical cord hematoma, and umbilical cord ulceration.

View Article and Find Full Text PDF

The aim of this second extended review is to describe the pathogenetic mechanisms underlying umbilical cord (UC) anomalies and their relationship with adverse perinatal outcomes. Review of the literature with case presentations to illustrate the relationship between UC pathologies and adverse perinatal outcomes are also reported. Prenatal ultrasound findings and perinatal care in these cases are presented.

View Article and Find Full Text PDF

This narrative review examines the integration of Artificial Intelligence (AI) in prenatal care, particularly in managing pregnancies complicated by Fetal Growth Restriction (FGR). AI provides a transformative approach to diagnosing and monitoring FGR by leveraging advanced machine-learning algorithms and extensive data analysis. Automated fetal biometry using AI has demonstrated significant precision in identifying fetal structures, while predictive models analyzing Doppler indices and maternal characteristics improve the reliability of adverse outcome predictions.

View Article and Find Full Text PDF

Congenital heart defects (CHDs) are the most common congenital defect, occurring in approximately 1 in 100 live births and being a leading cause of perinatal morbidity and mortality. Of note, approximately 25% of these defects are classified as critical, requiring immediate postnatal care by pediatric cardiology and neonatal cardiac surgery teams. Consequently, early and accurate diagnosis of CHD is key to proper prenatal and postnatal monitoring in a tertiary care setting.

View Article and Find Full Text PDF
Article Synopsis
  • * Diagnosis is based on recognizing specific characteristics of the lesions and the chronic nature of the disease, without the need for definitive biological tests or biopsies.
  • * Treatment options depend on the disease's severity and can involve antibiotics, hormonal therapies, and surgery, with imaging techniques like high-frequency ultrasound being essential for accurate assessment and monitoring of the condition.
View Article and Find Full Text PDF

The complete absence of the nose, arhinia, is a malformation most often associated with severe brain malformations. However, arhinia can be isolated, but only a few cases have been described. The prenatal diagnosis of isolated arhinia is also rarely described, with only three cases describing their follow-up, mostly in the first months of life.

View Article and Find Full Text PDF

: We sought to identify in which clinical scenarios 3D printed models are used to plan for fetal surgeries as well as the main purpose and the imaging method utilized for the models. In addition, we describe benefits and shortcomings of the models, as well as potential future improvements. : In this scoping review, data were collected retrospectively from scientific databases (PubMed, Embase, Cochrane CENTRAL, CINAHL, Scopus, and the Web of Science platform) and screened by title, abstract, and full text against strict criteria.

View Article and Find Full Text PDF

Coxsackievirus group B (CVB), a member of the family and enterovirus genus, poses risks during pregnancy due to its potential to cause severe fetal and neonatal infections. Transmission primarily occurs through fecal-oral routes, with infections peaking mostly in warmer months. Vertical transmission to the fetus can lead to conditions such as myocarditis, encephalitis, and systemic neonatal disease, presenting clinically as severe myocardial syndromes and neurological deficits.

View Article and Find Full Text PDF
Article Synopsis
  • This case is notable for being the first known diagnosis of focal dermal hypoplasia using prenatal MRI, which is a type of medical imaging done before birth.
  • There is a significant difference in the imaging findings of the skin malformation when comparing prenatal scans to postnatal (after birth) scans.
  • The study emphasizes the importance of both prenatal and postnatal assessments for better understanding and managing this condition over time.
View Article and Find Full Text PDF

Fetal cervical tumors are a life-threatening condition if proper diagnosis and perinatal care are inadequate. The most common causes of fetal cervical masses are teratomas and lymphangiomas. Less common tumors may obstruct the fetal airway due to cervical compression.

View Article and Find Full Text PDF

Three-dimensional navigation allows in a virtual reality environment across the fetal heart structures using glasses and joysticks. This technology allows virtual interactive discussions among multidisciplinary teams providing new perspectives on diagnosis and planning possible surgical corrections.

View Article and Find Full Text PDF

Background: The aim of this extended review of multicenter case series is to describe the prenatal ultrasound features and pathogenetic mechanisms underlying placental and umbilical cord anomalies and their relationship with adverse perinatal outcome. From an educational point of view, the case series has been divided in three parts; Part 1 is dedicated to placental abnormalities.

Methods: Multicenter case series of women undergoing routine and extended prenatal ultrasound and perinatal obstetric care.

View Article and Find Full Text PDF

Objective: The objectives of this study were to evaluate the vascularization pattern of uterine myoma (UM) by ultrasonography using Superb Microvascular Imaging (SMI) and tissue stiffness elastography.

Method: A prospective and cross-sectional study was carried out between March 2020 and December 2022 among women with clinical and ultrasound diagnosis of UM who would subsequently undergo radiofrequency ablation. Ultrasound examination was performed using both transvaginal and transabdominal routes.

View Article and Find Full Text PDF
Article Synopsis
  • * In three cases of nail tumors, doctors used 3D models to create special tools and plan surgeries, making them more effective and less invasive.
  • * Overall, using 3D models can improve surgery quality and safety, plus help educate future doctors.
View Article and Find Full Text PDF

The aim of this systematic review was to examine the available scientific literature on ultrasound-detected fetal liver changes in pregnant women with gestational diabetes mellitus (GDM) and to explore the potential of these markers to inform clinical management and improve outcomes. A total of four articles investigating fetal liver changes in GDM pregnancies were selected. The studies varied in methodology, gestational age studied, and diagnostic criteria for GDM.

View Article and Find Full Text PDF