Dramatic Increase in Incidence of Ulcerative Colitis and Crohn's Disease (1988-2011): A Population-Based Study of French Adolescents.

Objectives: Few data are available to describe the changes in incidence of pediatric-onset inflammatory bowel disease (IBD). The aim of this study was to describe changes in incidence and phenotypic presentation of pediatric-onset IBD in northern France during a 24-year period.

Methods: Pediatric-onset IBD (<17 years) was issued from a population-based IBD study in France between 1988 and 2011.

Transjugular intrahepatic portosystemic shunt in an infant.

A 15-month-old girl, who presented with biliary cirrhosis secondary to cystic fibrosis with refractory ascites and recurrent intestinal bleeding, underwent percutaneous transjugular intrahepatic portosystemic shunting. Immediately following the procedure the ascites disappeared and no further bleeding occurred. The stent shunt was patent on Doppler ultrasound until the 22nd day.

Hepatic iron overload: diagnosis and quantification with MR imaging.

Objective: The aim of this study was to assess the sensitivity of MR imaging in the diagnosis of liver hemochromatosis and its ability to quantify hepatic iron concentration (HIC).

Subjects And Methods: MR images were prospectively obtained in 58 patients suspected to have hemochromatosis. We used a scanner with a 0.

[Factors of image quality in spiral x-ray computed tomography].

In helical CT, there are 4 mains factors of quality: The in-plane spatial resolution that is the same in conventional CT; The spatial resolution on the Z axis, which is the slice thickness. The increase factor of the slice thickness between a conventional and a helical CT depends on the pitch and the reconstruction algorithm. The value of the increase factor can be easily calculated; The signal to noise ratio which depends on the collimation, the mA, the KV and the reconstruction algorithm.