Assuntos
Coração Fetal , Cardiopatias Congênitas , Imageamento Tridimensional , Ultrassonografia Pré-Natal , Humanos , Cardiopatias Congênitas/diagnóstico por imagem , Feminino , Gravidez , Ultrassonografia Pré-Natal/métodos , Imageamento Tridimensional/métodos , Coração Fetal/diagnóstico por imagem , Análise Espaço-TemporalRESUMO
This study aims to explore ultrasound (US) cardiac and echocardiographic features that may enable the early diagnosis of various major congenital heart diseases (CHDs). Focusing on providing useful US tools for this assessment, high resolution of US cardiac images of various CHDs, such as hypoplastic left heart syndrome, conotruncal anomalies, and univentricular heart, were evaluated. Results show that early US detection of most major CHDs is feasible during first-trimester ultrasonography cardiac evaluation. Concerns about safety issues, findings on early fetal cardiovascular hemodynamics, and cardiac lesions that can progress during the course of pregnancy were also discussed.
Assuntos
Cardiopatias Congênitas , Ultrassonografia Pré-Natal , Gravidez , Feminino , Humanos , Primeiro Trimestre da Gravidez , Ultrassonografia Pré-Natal/métodos , Diagnóstico Pré-Natal/métodos , Ecocardiografia/métodos , Ultrassonografia , Cardiopatias Congênitas/diagnóstico por imagem , Coração Fetal/diagnóstico por imagemRESUMO
This pictorial review describes the assessment of a great variety of types of congenital heart disease by three-dimensional ultrasonography with spatiotemporal image correlation using HDlive and the HDlive Flow silhouette rendering mode. These technologies provide fetal heart surface patterns by using a fixed virtual light source that propagates into the tissues, permitting a detailed reconstruction of the heart structures. In this scenario, ultrasound operators can freely select a better light source position to enhance the anatomical details of the fetal heart. HDlive and the HDlive Flow silhouette rendering mode improve depth perception and the resolution of anatomic cardiac details and blood vessel walls compared to standard two-dimensional ultrasonography.
RESUMO
INTRODUCTION: Spontaneous third ventriculostomy (STV) is characterized by the spontaneous rupture of one of the ventricle walls due to increased pressure in the third ventricle caused by obstructive hydrocephalus. Clinically, STV results in resolution of signs and symptoms of intracranial hypertension and head circumference stabilization. No spontaneous STV cases in patients with myelomeningocele have been reported in the literature. The objective of this study was to report three cases of STV in patients with type 2 Chiari malformation who underwent intrauterine treatment. CASE PRESENTATION: All patients presented clinically with increased head circumference during outpatient follow-up. Only one patient required a ventriculoperitoneal shunt implantation. The other patients did not require further intervention. CONCLUSION: STV is a rare entity that is difficult to diagnose and should always be suspected in spontaneous hydrocephalus resolution, especially in early childhood. STV is not synonymous with hydrocephalus resolution.
Assuntos
Hidrocefalia , Meningomielocele , Terceiro Ventrículo , Pré-Escolar , Feminino , Humanos , Hidrocefalia/diagnóstico por imagem , Hidrocefalia/etiologia , Hidrocefalia/cirurgia , Meningomielocele/complicações , Meningomielocele/cirurgia , Terceiro Ventrículo/diagnóstico por imagem , Terceiro Ventrículo/cirurgia , Resultado do Tratamento , Derivação Ventriculoperitoneal , VentriculostomiaRESUMO
Abstract Ultrasound diagnosis of posterior fossa malformations in the prenatal period is a challenge, having major implications for the counseling and follow-up of pregnant women. The purpose of this study was to review aspects of the ultrasound evaluation of the fetal posterior fossa, as well as to describe the most relevant ultrasound findings of the main posterior fossa malformations that can affect the fetus in the prenatal period.
Resumo O diagnóstico ultrassonográfico das malformações da fossa posterior no período pré-natal é um desafio, com importantes implicações no aconselhamento e acompanhamento dessas gestações. O objetivo deste estudo é revisar aspectos da avaliação ultrassonográfica da fossa posterior do feto e descrever os principais achados ultrassonográficos das principais malformações da fossa posterior que podem acometer o feto no período pré-natal.