The Bioeffects and Safety Committee is involved in the investigation of issues relating to the bioeffects and safety of ultrasound, as well as the provision of education and information within this field.

View ISUOG's Safety Statements.

Committee membership

Executive Committee, Finance & Risk Committee (Chair), Safety Committee (Chair), Scientific Committee, Governance group, Perinatal Doppler and Vascular Focus Group (Chair), UOG Editorial Board

Christoph Lees is a Maternal-Fetal Medicine subspecialist, Consultant Obstetrician and Head of Fetal Medicine at Imperial College London where he is Clinical Reader. He is visiting Professor, KU Leuven, Belgium, was RCOG inaugural National Ultrasound Officer 2010-2013 and Vice Chairman, RCOG Subspecialty Committee 2011-2013. His research focuses on pre-eclampsia, cardiovascular adaptation, Doppler, intra-uterine growth restriction and non-invasive fetal surgery.

Country: UK

Field: Obstetrics

Specialties: Fetal anomaly screening T2; fetal biometry and wellbeing; aneuploidies; fetal anomalies; fetal growth restriction; maternal and fetal Doppler; preeclampsia; safety of ultrasound

Language: English

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ISUOG Honorary Fellowship award, 2010, Ian Donald Gold Medal Winner, 2000

Dr Karel Marsal is Professor of Obstetrics and Gynecology and Chairman of the Department of Obstetrics and Gynecology, Clinical Sciences Lund, Lund University, Sweden.

Notable publications: Dr Marsal has published 280 peer reviewed scientific papers, 131 chapters and reviews and has edited 11 textbooks.

2000 Gold Medal Award article

Country: Sweden

Field: Obstetrics

Specialties: Fetal biometry and wellbeing; fetal growth restriction; maternal and fetal Doppler; safety of ultrasound

Languages: English; Czech; Swedish


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Professor Andrea Dall'Asta, PhD is currently Associate Professor of Obstetrics and Gynaecology at the University of Parma, Honorary Consultant Obstetrician and Gynaecologist at the University Hospital of Parma, Italy and Honorary Clinical Lecturer at Imperial College London, UK. His clinical and research interests are focused on Maternal and Fetal Medicine and particularly on fetal growth restriction, intrapartum ultrasound and advanced prenatal imaging.

Prof. Dall’Asta graduated and completed his residency in Obstetrics and Gynaecology and PhD in Medical Sciences at the University of Parma, Italy, and had Fetal Medicine and Obstetric training in the United Kingdom at Queen Charlotte's and Chelsea Hospital, London. He is author and co-author of over 80 peer reviewed manuscripts and several chapters published in textbooks of international relevance and collaborates as a reviewer for several International Journals. He is currently member of the Safety Committee and of the Next Generation Committee of the International Society on Ultrasound in Obstetrics and Gynaecology and co-chair of the Fetal Growth Committee of the Italian Society on Ultrasound in Obstetrics and Gynaecology (SIEOG). Prof. Dall’Asta has been appointed Editorial Board Member for the Fetal Medicine section of BMC Pregnancy and Childbirth in June 2018.

Country: Italy

Field: Obstetrics, Fetal Medicine & advanced imaging, Fetal growth restriction, Ultrasound in the labour ward

Specialties: fetal anomaly assessment in the first and second trimester, fetal growth and Doppler, fetal anomalies, ultrasound in the labour ward.

Languages: Italian, English

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Secretariat Liaison