Karl Oliver Kagan

First‐trimester screening for trisomy 21 by free beta‐human chorionic gonadotropin and pregnancy‐associated plasma protein‐A: impact of maternal and pregnancy characteristics

Karl Oliver Kagan, D. Wright, Kevin Spencer et al. · Ultrasound in Obstetrics and Gynecology · 2008 · 291 citations · Full text

Medicine, Maternal Health, Obstetrics +15

A mixture model of nuchal translucency thickness in screening for chromosomal defects

D. Wright, Karl Oliver Kagan, Francisca S. Molina et al. · Ultrasound in Obstetrics and Gynecology · 2008 · 255 citations · Full text

Medicine, Maternal Health, Obstetrics +17

ISUOG Practice Guidelines (updated): performance of 11–14‐week ultrasound scan

Caterina M. Bilardo, Rabih Chaoui, Jon Hyett et al. · Ultrasound in Obstetrics and Gynecology · 2023 · 241 citations · Full text

Medicine, Gynecology, Obstetrics +12

Ductus venosus Doppler in screening for trisomies 21, 18 and 13 and Turner syndrome at 11–13 weeks of gestation

Nerea Maíz, Catalina Valencia, Karl Oliver Kagan et al. · Ultrasound in Obstetrics and Gynecology · 2009 · 207 citations

Medicine, Maternal Health, Obstetrics +17

Measurement of tumour size with mammography, sonography and magnetic resonance imaging as compared to histological tumour size in primary breast cancer

Ines Gruber, Miriam Rueckert, Karl Oliver Kagan et al. · BMC Cancer · 2013 · 197 citations · Full text

Medicine, Oncology, Radiology +17