کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2734690 1147673 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultrasound biometry of normal human amniotic fluid index in a Nigerian population
ترجمه فارسی عنوان
بیومتری اولتراسوند شاخص نرمال مایع آمنیوتیک انسانی در یک جمعیت نیجریه
کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی رادیولوژی و تصویربرداری
چکیده انگلیسی


• The normal AFI range for the studied Nigerian women is 8.6 cm–27.0 cm.
• No statistically significant difference in AFI measurements at all gestational age.
• AFI normal range should not be specific for each fetal gestational age.
• Pregnancies with AFI <8.6 cm should be classified as potentially high risk.
• AFI measurements made by experienced observers demonstrate excellent inter and intraobserver reproducibility.

BackgroundThe amniotic fluid index (AFI) closely represents the actual amniotic fluid volume (AFV) with measurements below and above the 5th and 95th percentiles describing oligohydramnios and polyhydramnios respectively.ObjectiveTo create a sonographic reference range nomogram of the AFI for a Nigerian population using polynomial regression, and to test for reproducibility of AFI measurements.MethodsFive hundred and sixty patients between 16 and 40 weeks fetal gestational age (FGA) were sampled for the study. The FGA was estimated sonographically by combining the fetal biparietal diameter, abdominal circumference, and femoral length measurements. The AFI was obtained by measuring and summing up the deepest pool of amniotic fluid devoid of fetal parts and umbilical cord in each quadrant of the maternal abdomen. To test for reproducibility of AFI measurements, two sonographers with more than 8 years of obstetric clinical experience independently measured the AFI of 40 patients. Polynomial regression, Pearson's correlation, and intra class correlations were used for data analysis.ResultsThe mean ± SD of the AFI obtained in the second and third trimester respectively is 15.2 ± 4.0 cm, and 16.0 ± 5.8 cm. There was a steady but insignificant decrease in the AFI at all the FGA studied. A log transformed linear model adequately fitted the relationship between the AFI and FGA, given as: AFIcm=1.1461+0.00091×FGA(R2=0.002). Our normal AFI range is from 8.6 cm to 27.0 cm.ConclusionOligohydramnios and polyhydramnios can be satisfactorily diagnosed in the study population when AFI measurement is below or above 8.6 cm and 27.0 cm respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiography - Volume 22, Issue 2, May 2016, Pages e86–e92
نویسندگان
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