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Abstract
Prognosis of the pretern infant depends more on Gestational age than brith weigh ,but climical assessment of Gestational age of pretern infant is inaccurate .OBJECTIVE:to assess whether cerebellar vermis diameter is accurate in predicting Gestational age in premature infants .MATERIALS AND METHODS :we obtained suited midline , sagittel images of the Cerebellar vermis at cramial Sonography performed via the anterior fontanelle ,in the 40 preterm infants from the regional neonatal intensive care unit whose gestational ages were assessed .we measured the Cerebellar Vermis diameter on the hard copy image provide d the margins of the Vermis were clearly visible , Vermis diameter was measured from the base of the fourth ventricle to thejunction of folium and tuber Vermis
We used regression equation for estimating Gestational age using combination of brith weight and Vermis diameter
Results :
Measurements of Cerebellar Vermis diameter by cranial Sonography allowed predication of Gestational age =/-1.3 weeks using a 95% prediction interval .CONCLUSION :Assessment of Gestational age by measuring Cerebellar Vermis diameter using cranial Sonography proved to be accurate and simple method for assessing Gestational age .it more objective ,easier ,less time consuming and less distressing to the baby than the new ballard score