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P23Ultrasonographic weight estimation of the macrosomic fetus: the benefit of two examiners
Author(s) -
Gull I.,
Wolman I.,
HarToov J.,
Fait G.,
Amster R.,
Lessing J. B.,
Jaffa A. J.
Publication year - 2000
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.2000.00004-1-23.x
Subject(s) - medicine , fetal weight , estimation , weight estimation , fetus , diagnostic accuracy , obstetrics , statistics , pregnancy , mathematics , radiology , genetics , management , economics , biology
Background Using two examiners to obtain more accurate estimation of fetal weight (EFW) in suspected macrosomy is commonly accepted. However, the real benefit of such routine has not been validated. Aim To validate and calculate the benefit of using two examiners for increasing the accuracy and decreasing errors of more than 10% in EFW of macrosomic fetuses. Methods Fifty term fetuses suspected for macrosomy were examined by two examiners. The accuracy and the number of errors of EFW of more than 10% were calculated for each examiner, and compared to an average estimation of both examiners. Results The average birth weight was 4140gr. The estimation accuracy of the examiners was 5.83% and 6.18 % (N.S.). Using an average estimation of both examiners the accuracy increased to 5.75% (N.S.). However, using two examiners decrease the number of errors of more than 10%. Twelve fetuses were estimated erroneously by at least one examiner. Only 6 fetuses were estimated erroneously when the EFW was based upon the average of the two examiners. Conclusion Although the use of two examiners for EFW in macrosomic fetus doesn't increase the accuracy, it decreases errors of more than 10%.