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Diagnostic ultrasound ( PDFDrive )

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1546 PART V Pediatric Sonography

C

4

3

A

4

A

B

FIG. 45.40 Cisterna Magna and Fourth Ventricle Clot. (A) Axial sonogram shows echogenic clot within the cisterna magna (C) and fourth

ventricle (4). (B) Expansive clot within the aqueduct of Sylvius (A) between the third (3) and fourth (4) ventricles.

A

B

C

D

FIG. 45.41 Intraventricular Hemorrhage and Hydrocephalus. (A) and (B) Coronal and sagittal sonograms show enlarged lateral ventricles

and third ventricle; clot is causing intraventricular obstructive hydrocephalus. Note the echogenic lining of the lateral ventricles due to ventriculitis

associated with the hemorrhage. (C) and (D) Coronal and sagittal sonograms shows extraventricular obstructive hydrocephalus; the lateral

ventricles, third ventricle, and fourth ventricle are all enlarged.

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