“First Things First”: Fetal Nasal Bone Imaging in the First Trimester 11–13+6 Weeks Scan

ISUOG practice guidelines: performance of first-trimester fetal ultrasound scan.

The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) is a scientific organization that encourages safe clinical practice and high-quality teaching and research related to diagnostic imaging in women’s healthcare. The ISUOG Clinical Standards Committee (CSC) has a remit to develop Practice Guidelines and Consensus Statements that provide healthcare practitioners with a co...

First trimester fetal karyotyping in twin pregnancy.

Fetal chromosome analysis in a twin pregnancy during the first trimester is described. Problems of the reliability of tissue sampling are also discussed. The authors emphasise the advantage of direct cytogenetic analysis from the tissue specimens used for enzyme determination or DNA studies.

First things first.

First things first.

First Things First:

Three design principles are advanced for multi-user educational videogames. First, they should support situative embodiment in academic knowledge, where personally meaningful activities and coherent narratives foster collective engagement. Second, they should offer multiple levels and forms of meaningful assessment and the opportunity to succeed, fail, and try again. Third, they should provide ...