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Reproducibility Of Measuring Amniotic Fluid Index And Single Deepest Vertical Pool Throughout Gestation.

Joyce Sande, Christos Ioannou, Ippokratis Sarris, Eric O Ohuma, Aris T Papageorghiou
Published 2015 · Medicine
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OBJECTIVE The aim of this study is to assess the intraobserver and interobserver reproducibility of measurement of amniotic fluid index (AFI) and single deepest vertical pool (SDVP), also known as the maximal vertical pocket. METHODS A total of 175 fetuses were evaluated. For each fetus, two observers acquired duplicate sets of AFI and SDVP. Measurement differences were expressed as actual and percentage values. For all comparisons, Bland-Altman plots were used to compare differences, and limits of agreement were calculated. RESULTS Intraobserver and interobserver agreement remained fairly constant with gestation, both for AFI and SDVP. The intraobserver limits of agreement for AFI were -5.2 to 5 cm or -39% to 37%; whereas for SDVP, these were -2.6 to 2.4 cm or -52% to 48%. The interobserver limits of agreement for AFI measurement were -7.3 to 7.1 cm or -54% to 53% and for SDVP measurement were -2.5 to 2.5 cm or -51% to 52%. Intraobserver coefficient of variation for SDVP was 14% and for AFI was 19%; the interobserver coefficient was 19% for both AFI and SDVP. CONCLUSION Limits of agreement for both methods are wide. The choice of method should be dictated by clinical considerations other than method reproducibility.
This paper references
How well do the amniotic fluid index and single deepest pocket indices (below the 3rd and 5th and above the 95th and 97th percentiles) predict oligohydramnios and hydramnios?
Everett F. Magann (2004)
Amniotic fluid index vs single deepest pocket technique during modified biophysical profile: a randomized clinical trial.
S. Chauhan (2004)
The objectives, design and implementation of the INTERGROWTH-21st Project.
J. Villar (2013)
Standardization of fetal ultrasound biometry measurements: improving the quality and consistency of measurements.
Ippokratis Sarris (2011)
Four-quadrant assessment of amniotic fluid volume. Interobserver and intraobserver variation.
S E Rutherford (1987)
Amniotic fluid index versus single deepest vertical pocket: a meta-analysis of randomized controlled trials.
Ashraf Fawzy Nabhan (2009)
Ultrasound evaluation of amniotic fluid volume: methods and clinical accuracy.
Dandolo Gramellini (2004)
Inter- and Intra-Observer Variation in the Amniotic Fluid Index
Abraham Peedicayil (1994)
Hydramnios: Anomaly Prevalence and Sonographic Detection
J. Dashe (2002)
Amniotic fluid index versus single deepest vertical pocket as a screening test for preventing adverse pregnancy outcome.
Ashraf Fawzy Nabhan (2008)
Do semiquantitative amniotic fluid indexes reflect actual volume?
Christopher S. Croom (1992)
Intrapartum amniotic fluid index and two-diameter pocket are poor predictors of adverse neonatal outcome.
Suneet P. Chauhan (1997)
Comparison of two dependent within subject coefficients of variation to evaluate the reproducibility of measurement devices
Mohamed M. Shoukri (2008)
Amniotic fluid index versus largest vertical pocket in the prediction of perinatal outcome in post-term pregnancies.
Carla Verrotti (2004)
Amniotic fluid dynamics.
A. B. Modena (2004)
A randomised comparison between amniotic fluid index and maximum pool depth in the monitoring of post-term pregnancy.
Ž. Alfirević (1997)
Measurement of amniotic fluid volume: accuracy of ultrasonography techniques.
E. Magann (1992)
Amniotic Fluid Index and Single Deepest Pocket: Weak Indicators of Abnormal Amniotic Volumes
E. Magann (2000)
The Four-Quadrant Assessment of Amniotic Fluid Volume: An Adjunct to Antepartum Fetal Heart Rate Testing
S. Rutherford (1987)
Oligohydramnios: use and misuse in clinical management.
D. Sherer (2001)
Antepartum fetal evaluation: development of a fetal biophysical profile.
F. Manning (1980)
Reliability of amniotic fluid volume estimation from ultrasonograms: intraobserver and interobserver variation before and after the establishment of criteria.
Mike Halperin (1985)
Standardisation and quality control of ultrasound measurements taken in the INTERGROWTH-21st Project.
Ippokratis Sarris (2013)
Ultrasound methodology used to construct the fetal growth standards in the INTERGROWTH-21st Project.
Aris T Papageorghiou (2013)

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