Intraobserver and interobserver variability of transabdominal Doppler velocimetry measurements of the fetal ductus venosus between 10 and 14 weeks of gestation

Ultrasound in Obstetrics and Gynecology

Volumn 17, Issue 4, 2001, Pages 306-310

  Mavrides, E ^a   Holden, D ^a   Bland, J M ^a   Tekay, A ^a   Thilaganathan, B ^a  

^a ST GEORGE'S UNIVERSITY OF LONDON   (United Kingdom)

Author keywords

Doppler ultrasound; Fetus; Intra CC; Kappa coefficient; Reliability

Indexed keywords

ARTICLE; BLOOD FLOW VELOCITY; DOPPLER FLOWMETRY; DUCTUS VENOSUS; FETUS; FIRST TRIMESTER PREGNANCY; HEART ATRIUM CONTRACTION; HEART VENTRICLE CONTRACTION; HUMAN; PRIORITY JOURNAL; PULSATILE FLOW; RELIABILITY; WAVEFORM;

ADOLESCENT; ADULT; ANALYSIS OF VARIANCE; BLOOD FLOW VELOCITY; CONFIDENCE INTERVALS; FEMALE; FETAL HEART; GESTATIONAL AGE; HUMANS; OBSERVER VARIATION; PREGNANCY; PREGNANCY TRIMESTER, FIRST; PROSPECTIVE STUDIES; PULSATILE FLOW; REPRODUCIBILITY OF RESULTS; ULTRASONOGRAPHY, DOPPLER; ULTRASONOGRAPHY, PRENATAL;

EID: 0035015512     PISSN: 09607692     EISSN: None     Source Type: Journal    
DOI: 10.1046/j.1469-0705.2001.00386.x     Document Type: Article

References (21)

1. Screening for chromosomal abnormalities at 10-14 weeks: The role of ductus venosus blood flow
2. Abnormal ductus venosus blood flow in trisomy 21 fetuses during early pregnancy
3. Increased fetal nuchal translucency: Possible involvement of early cardiac failure
4. Cardiac defects in chromosomally normal fetuses with abnormal ductus venosus blood flow at 10-14 weeks
5. Sample size requirement for reliability studies
6. Statistics notes: Measurement error proportional to the mean
7. Statistical methods for assessing observer variability in clinical measures
8. The measurement of observer agreement for categorical data
9. Comparison of conventional and transverse Doppler sonograms
10. Autonomic mechanisms in the ductus venosus of the lamb
11. The response of the lamb ductus venosus to prostaglandis and inhibitors of prostaglandin and thromboxane synthesis
12. Fetal ductus venosus and its sphincter mechanism
13. Ultrasonographic velocimetry of the fetal ductus venosus
14. Recognition of a fetal subdiaphragmatic venous vestibule essential for fetal venous Doppler assessment
15. Clinical biostatistics. The biostatistics of concordance
16. Intra-observer and inter-observer reliability of the pulsatility index calculated from pulsed Doppler flow velocity waveforms in three fetal vessels
17. A reappraisal of the kappa coefficient
18. Kappa coefficients in epidemiology: An appraisal of a reappraisal