Serial Doppler velocimetry of mesenteric and portal flow in very-low-birth-weight preterm neonates with and without patent ductus arteriosus.

Background: Very-low-birth-weight (VLBW) preterm neonates are vulnerable to patent ductus arteriosus (PDA), which might be related to high-resistance flow in the superior mesenteric artery (SMA), with decreased diastolic flow in situations of marked intestinal hypoperfusion. No previous studies have evaluated the portal vein and superior mesenteric vein (SMV) parameters to assess the PDA hemodynamic repercussions.

Objective: To assess mesenteric and portal flow in VLBW preterm neonates with or without PDA using serial Doppler ultrasonography (US).

Waist circumference and mesenteric fat in neonates: negative correlation.

Objective: To measure mesenteric fat thickness with ultrasound scan in neonates and to assess the correlation with waist circumference.

Methods: Ninety five healthy newborns had the maximum thickness of mesenteric leaves measured by ultrasound examinations of abdomen with an Envisor scanner (Philips Ultrasound, Bothell, Wash) and a L12-5 transducer (Philips Ultrasound). The correlation between the thickness of mesenteric leaves with abdominal waist was calculated.

Eliminating unenhanced CT when evaluating abdominal neoplasms in children.

Objective: The purpose of our study was to evaluate a CT protocol that eliminates the unenhanced phase for imaging pediatric abdominal neoplasms.

Materials And Methods: We retrospectively performed a case series study of all the abdominal CT scans on children and adolescents found in our archives. Two radiologists separately evaluated each CT scan twice.

The aurora sign in a patient with type B Niemann-Pick disease.

The aurora sign, a sonographic sign found on the sagittal and transverse view, refers to multiple bands of ring-down artifacts posterior to the right hemidiaphragm. Parenchymal lung disease should be suspected when this is present. We report a case of type B Niemann-Pick disease with pulmonary involvement and the aurora sign on abdominal sonography.