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Updated: Jan 6, 2026

A Modified Sonographic Algorithm for Image Acquisition in Life-Threatening Emergencies in the Critically Ill Newborn
Published on: April 7, 2023
Pediatric hydrocephalus and imaging evaluation of ventriculomegaly in the emergency setting
Ali A Elzieny1,2, Elodie Pace-Soler3,4, Anna Kalathil Thomas3,4
1Department of Radiology, Boston University, FGH 3rd Floor, 820 Harrison Ave, Boston, MA, 02118, United States.
Insights
Hydrocephalus, a neurological disorder affecting cerebrospinal fluid (CSF) dynamics, causes enlarged CSF spaces and increased intracranial pressure. This review guides pediatric radiologists in diagnosing and managing acute hydrocephalus, differentiating it from atrophy using imaging.
Area of Science:
- Neurology
- Pediatric Radiology
- Neuroimaging
Background:
- Hydrocephalus involves abnormal cerebrospinal fluid (CSF) dynamics, leading to enlarged CSF spaces and raised intracranial pressure.
- Distinguishing hydrocephalus from parenchymal atrophy in pediatric patients can be challenging.
- Effective management is crucial to restore CSF dynamics and prevent neurological complications.
Purpose of the Study:
- To provide an updated review of hydrocephalus pathophysiology and etiology.
- To highlight key imaging findings for diagnosing acute hydrocephalus and its complications.
- To offer practical guidance for pediatric radiologists in emergency settings.
Main Methods:
- Literature review focusing on updated pathophysiology, etiologies, and imaging characteristics.
- Analysis of imaging signs to differentiate hydrocephalus from atrophy in pediatric cases.
- Synthesis of current management strategies, including ventricular drains and shunts.
Main Results:
- Hydrocephalus presents with abnormal CSF spaces and often signs of increased intracranial pressure.
- Specific imaging findings can aid in differentiating hydrocephalus from parenchymal atrophy in children.
- Management strategies focus on normalizing CSF dynamics and preventing complications.
Conclusions:
- Accurate diagnosis of hydrocephalus in pediatric patients relies on understanding its pathophysiology and characteristic imaging findings.
- Radiologists play a critical role in the timely diagnosis and management of acute hydrocephalus.
- This review equips pediatric radiologists with practical knowledge for emergency settings.
Abstract:
Hydrocephalus is a frequently encountered neurological disorder of cerebrospinal fluid (CSF) physiology or dynamics, resulting in the abnormal enlargement of CSF spaces and often presenting with signs and symptoms of raised intracranial pressure. The etiology of hydrocephalus is numerous, regardless of the model used to understand its pathophysiology. Differentiating ventricular enlargement due to hydrocephalus or parenchymal atrophy can be difficult in pediatric patients, but certain imaging signs could help differentiate the two entities. The management of hydrocephalus aims to restore normal CSF dynamics, alleviate symptoms, and prevent long-term neurological complications with the help of ventricular drains and shunts. In this review, we will cover the updated pathophysiology, key etiologies, characteristic imaging findings of acute hydrocephalus and its complications, thus providing practical guidance for pediatric radiology fellows and radiologists in emergency settings.
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