Direct prediction of amniotic fluid volume in the third trimester by 3-dimensional measurements of intrauterine pockets: a tool for routine clinical use
| Autor: | Shosuke Takamura, Yoshiyasu Hombo, Kiyoshi Uchide, Michio Ohshita, Masaki Inoue |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
medicine.medical_specialty
Supine position Amniotic fluid Pregnancy Trimester Third Third trimester Oligohydramnios Imaging Three-Dimensional Pregnancy Volume measurement Amniotic fluid volume Medicine Humans Statistical analysis Ultrasonography business.industry Obstetrics Uterus Obstetrics and Gynecology Amniotic Fluid Volume (thermodynamics) Regression Analysis Female business Nuclear medicine Forecasting |
| Zdroj: | American journal of obstetrics and gynecology. 186(2) |
| ISSN: | 0002-9378 |
| Popis: | Objective: To develop an ultrasonographic technique for direct prediction of amniotic fluid volume. Study Design: While women with near-term pregnancies were in the supine position, the intrauterine space was divided into 2 hemispheres and each hemisphere was further subdivided into 3 segments. The maximum distances along the 3 axes of amniotic fluid pocket in each segment were measured, and the volume was calculated as a half-ellipsoid or a crescent-cylinder. A sum of these calculations (prediction of amniotic fluid volume [pAFV]) was made and correlated with amniotic fluid volume measured at delivery (mAFV). Results: In 714 deliveries, a high correlation coefficient of 0.896 between mAFV (mean ± SD, 296.5 ± 199.2 mL; range, 20 to 1480 mL) and pAFV (mean ± SD, 300.2 ± 180.8 mL; range, 27 to 1262 mL) was obtained. The regression equation was mAFV=0.968pAFV + 8.68. Conclusion: The regression equation suggested that pAFV could be a direct predictor of intrauterine amniotic fluid volume in the third trimester. (Am J Obstet Gynecol 2002;186:245-50.) |
| Databáze: | OpenAIRE |
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