Direct coronal CT scanning of the neonatal chest.

Background: The purpose of this study was to attempt to improve upon conventional coronal computed tomographic (CT) images of neonatal chest which to date have been made by reformatting thinly spaced axial images.

Materials And Methods: Nine neonates were studied by direct coronal CT scans with the patients' long axis 90 degrees to the scanning table. They were studied to further define their thoracic abnormalities detected on plain film.

Worsening enterocolitis in neonates: diagnosis by CT examination of urine after enteral administration of iohexol.

Perforation, a severe complication of necrotizing enterocolitis (NEC), has a high mortality rate. Recently, we presented a new technique for evaluation of NEC: measuring the CT attenuation coefficient of urine after oral administration of iohexol. We present three cases of neonates with NEC who demonstrated serial increases in urine CT attenuation coefficients, all of whom subsequently deteriorated clinically and radiographically.

Airway obstruction in pediatric patients. From croup to BOOP.

Causes for airways obstruction in infants and children vary considerably from those encountered in adult populations. The recent dissemination of rapid CT scan (helical and electron beam) has changed the diagnostic imaging approach in children with suspected airways obstruction. Fast CT scan not only detects the location of obstruction with high sensitivity but also frequently provides clues to specific pathologic diagnoses.

Necrotizing enterocolitis: diagnosis with CT examination of urine after enteral administration of iodinated water-soluble contrast material.

Purpose: To develop a new method for diagnosing necrotizing enterocolitis with use of computed tomography (CT).

Materials And Methods: Urine specimens from 22 neonates were obtained 8-12 hours after iohexol was administered enterally. Twelve neonates had suspected (n = 5) or definite (n = 7) necrotizing enterocolitis, and 10 neonates without necrotizing enterocolitis underwent routine upper gastrointestinal study.

Ringed esophagus (feline esophagus) in childhood.

Feline esophagus is a term describing a specific radiological and endoscopic appearance of the esophagus that is attributed to chronic esophagitis. To date only one report has described this appearance in childhood. We present a histologically documented case of this entity including follow-up studies after therapy for esophagitis.