Keyword Analysis & Research: radiology assistant pvl

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When to have a sonographic exam for PVL?

Regular sonographic examination is mandatory as cysts in PVL can develop as long as 4 weeks after birth (especially in prematures Cranial ultrasonographic findings may be normal in patients who go on to develop clinical and delayed imaging findings of PVL.

What does PVL stand for in medical terms?

PVL is also known as Hypoxic-Ischemic Encephalopathy (HIE) of the preterm. It is a white matter disease that affects the periventricular zones. In prematures this white matter zone is a watershed zone between deep and superficial vessels.

When is PVL diagnosed as a Grade 4 disease?

PVL is diagnosed as grade 4 if there are areas of increased periventricular echogenicity in the deep white matter developing into extensive subcortical cysts. PVL grade 4 is seen mostly in fullterm neonates as opposed to PVL grade 1-3, which is a disease of the preterm neonate.

How to grade periventricular leukomalacia on sonographic appearance?

One of the methods used for grading periventricular leukomalacia on sonographic appearance is as follows: grade 1: areas of increased periventricular echogenicity without any cyst formation persisting for more than 7 days Which of the following sonographic features describes grade 4 of the periventricular leukomalacia?


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