Which imaging modality confirmed hydrocephalus in the infant case?

Which imaging modality confirmed hydrocephalus in the infant case?

• A. MRI
• B. CT scan
• C. Ultrasound
• D. X-ray

Answer: (B)

Hydrocephalus in infants is identified by dilated cerebral ventricles on imaging, and the choice of modality often hinges on speed and the ability to visualize the ventricular system clearly. A CT scan is ideal in this scenario because it is fast, widely available, and provides a definitive view of ventricular enlargement along with the ability to assess for acute problems such as intraventricular hemorrhage or obstructing lesions. It also allows quick quantification of the degree of hydrocephalus, which is crucial for urgent decision-making. While ultrasound can detect ventriculomegaly through an open fontanelle and is useful for quick bedside assessment, its accuracy depends on the window and operator, and it may miss additional pathology. MRI offers superior detail but takes longer and may require motion control or sedation, which is less practical in acute infant cases. X-ray does not effectively visualize the ventricles.

Hydrocephalus in infants is identified by dilated cerebral ventricles on imaging, and the choice of modality often hinges on speed and the ability to visualize the ventricular system clearly. A CT scan is ideal in this scenario because it is fast, widely available, and provides a definitive view of ventricular enlargement along with the ability to assess for acute problems such as intraventricular hemorrhage or obstructing lesions. It also allows quick quantification of the degree of hydrocephalus, which is crucial for urgent decision-making. While ultrasound can detect ventriculomegaly through an open fontanelle and is useful for quick bedside assessment, its accuracy depends on the window and operator, and it may miss additional pathology. MRI offers superior detail but takes longer and may require motion control or sedation, which is less practical in acute infant cases. X-ray does not effectively visualize the ventricles.