BACKGROUND: The @entity1 with posterior @entity9283 may have positional molding or unilateral @entity91 . Molding responds to conservative treatment, @entity91 requires surgical reconstruction. CT is diagnostic, but uses ionizing radiation, may need sedation, and the incidence of lambdoid fusion is only 2-3%. OBJECTIVE: The purpose of this prospective study was to evaluate ultrasound as a screening test of lambdoid sutural patency using CT as the reference standard. MATERIALS AND METHODS: In total, 41 @entity1 having head CT examinations were enrolled over 6 months. Of those, 29 were referred for @entity135 and suspected @entity8213 , of whom two had lambdoid fusion; 12 were referred for indications not related to head shape and found to have a normal study. Ultrasound scanning and interpretation of the lambdoid sutures was performed blinded to the CT reference standard. The lambdoid suture was read as patent or fused if a hypoechoic gap could or could not be seen between the hyperechoic calvarial bones, respectively. RESULTS: The mean sensitivity and specificity of ultrasound in distinguishing a patent from fused lambdoid suture by three blinded pediatric radiologists was 100% and 89%, respectively. CONCLUSIONS: Sonography of the lambdoid sutures shows excellent preliminary promise as a screening test of lambdoid sutural patency.

Ultrasound screening of the lambdoid suture in the XXXX with posterior @entity9283 .

@entity1 :: ('9606', 'Species') :: ['children', 'child'] @entity135 :: ('MESH:D006258', 'Disease') :: ['abnormal head shape'] @entity9283 :: ('MESH:D059041', 'Disease') :: ['plagiocephaly'] @entity8213 :: ('MESH:D013580', 'Disease') :: ['synostosis'] @entity91 :: ('MESH:D003398', 'Disease') :: ['lambdoid synostosis']
@entity1 :: (9606,Species) :: ['child']
