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Description

Alarcon et al graded MRI changes in the brain associated with congenital cytomegalovirus (CMV) infection. The authors are from Oxford University Hospitals, Hammersmith Hospital, Sant Joan de Deu University Hospital (Barcelona) and La Paz University Hospital (Madrid).


Exam: brain MRI

 

Ventriculomegaly: ventricular index > 97th percentile for gestational age in mm

Severe ventriculomegaly: ventricular index > 97th percentile in mm + 4 mm

 

Parameters:

(1) calcifications

(2) vasculopathy

(3) germinolysis

(4) ventricular index

(5) white matter signal abnormalities

(6) cortical changes

(7) corpus callosum

(8) cerebellar

 

Parameter

Finding

Points

calcifications

none

0

 

single punctate periventricular

1

 

multiple discrete periventricular

2

 

extensive

3

vasculopathy

none

0

 

lenticulostriate

1

germinolysis

none

0

 

caudothalamic germinolysis

1

 

paraventricular germinolytic cysts

2

ventricular index

normal

0

 

ventriculomegaly, less than severe

1

 

ventriculomegaly, severe

2

white matter abnormalities

none

0

 

focal or multifocal white matter signal abnormalities

1

 

diffuse white matter abnormalities

2

cortical changes

none

0

 

temporal lobe involvement

2

 

cortical malformations, abnormal gyrations, brain atrophy

3

corpus callosum

normal

0

 

dysgenesis

3

cerebellum

normal

0

 

hypoplasia

3

 

grade =

= MAX(points for various parameters)

 

Interpretation:

• minimum grade: 0 (nromal)

• maximum grade: 3


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