16<sup>th</sup> World Congress on Ultrasound in Obstetrics and Gynecology, 3–7 September 2006, London, UK: presentations and awards
Bibliographic record
Abstract
Since the early 1970s, he has used various modes of diagnostic ultrasound for studies of fetal physiology and for the development of new methods of monitoring fetal well-being.During his postgraduate stay at the University of London, Brian Trudinger studied fetal breathing movements using Amode and later real-time B-mode ultrasound.After his return to Sydney, he worked with the research group of the Ultrasonics Institute.Together they succeeded in measuring volume blood flow in the umbilical vein by combining pulsed Doppler ultrasound for estimation of the mean blood velocity with B-mode for measurement of the vessel diameter.Later, Brian Trudinger moved to Doppler studies of umbilical artery waveforms, and, in the systematic way that is so characteristic of his research, he explored the basics of blood velocity waveform analysis and the possibilities of applying the Doppler method for monitoring fetal health in pregnancies complicated by placental dysfunction.Trudinger's research group at the University of Sydney used clinical studies as well as mathematical and animal models to investigate factors influencing blood velocity waveforms.Their experimental studies on embolization of the fetoplacental circulation and clinical studies relating umbilical artery Doppler velocimetry to morphological findings in the placenta, belong to the classical studies in this field.Trudinger and colleagues performed one of the first randomized clinical trials indicating the clinical usefulness of umbilical artery Doppler velocimetry when applied for fetal surveillance in complicated pregnancies.They also followed the postnatal development of fetuses with abnormal intrauterine blood velocity waveforms.The results of their clinical research were applied in a clinical context in a 'Fetal Welfare Laboratory', founded by Dr Trudinger at Westmead Hospital.In a number of studies, various pharmacological effects on the fetoplacental circulation have also been elucidated by the Westmead group.More recently, Brian Trudinger started to use modern molecular biology methods to study the origins and pathophysiology of placental vascular disease.Trudinger's group investigated several other features of the fetal circulation using new ultrasound techniques -for example, the phase-locked loop echo-tracking system for the noninvasive measurement of pressure pulse waveforms, or digital Doppler signals for the estimation of cardiac isovolumetric contraction time.Brian Trudinger is active clinically as a specialist in maternal-fetal medicine, which has always guaranteed the high clinical relevance of his research.He is very
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.004 |
| Meta-epidemiology (narrow) | 0.002 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.004 | 0.002 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.300 | 0.194 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".