Four Virtual-Reality Simulators for Diagnostic Abdominal Ultrasound Training in Radiology.

Ultrasound exams need skilled examiners, and simulation-based training could provide standardized and safe skill training. This study aims to give an overview of different types of virtual-reality simulators for use in abdominal diagnostic ultrasound training in radiology. Fifteen specialized radiologists and radiological residents were presented with two similar cases on four different simulators for abdominal ultrasound training.

Gene-environment interaction in atopic diseases: a population-based twin study of early-life exposures.

Introduction: The development of atopic diseases early in life suggests an important role of perinatal risk factors.

Objectives: To study whether early-life exposures modify the genetic influence on atopic diseases in a twin population.

Methods: Questionnaire data on atopic diseases from 850 monozygotic and 2279 like-sex dizygotic twin pairs, 3-9 years of age, from the Danish Twin Registry were cross-linked with data on prematurity, Cesarean section, maternal age at birth, parental cohabitation, season of birth and maternal smoking during pregnancy, from the Danish National Birth Registry.

Apgar score is related to development of atopic dermatitis: cotwin control study.

Aim. To study the impact of birth characteristics on the risk of atopic dermatitis in a twin population. Methods.