Derivations that enable the testing of fetal urine production as a method of fetal surveillance
| Autor: | Anders Odén, Lars-Åke Mattsson, Mats A. Fagerquist, Ulf O. Fagerquist, Sture G. Blomberg |
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| Rok vydání: | 2009 |
| Předmět: |
medicine.medical_specialty
Urinary Bladder Urine Ultrasonography Prenatal Urine production Fetus Pregnancy Obstetrics and Gynaecology Humans Organ volume Medicine Organ Volume Ultrasonography business.industry Obstetrics Reproducibility of Results Obstetrics and Gynecology Data interpretation Materno-Fetal Medicine General Medicine Reliability Data Interpretation Statistical Female business |
| Zdroj: | Archives of Gynecology and Obstetrics |
| ISSN: | 1432-0711 0932-0067 |
| DOI: | 10.1007/s00404-009-1242-6 |
| Popis: | Purpose To calculate the measurement error of the hourly fetal urine production rate (HFUPR) and evaluate the implication of different methods for measuring the HFUPR, i.e. ellipsoid versus sum-of-cylinders method. Methods The calculation was based on sonographic documentation of the increased bladder volumes during the filling phase, the bladder volume measurement error and the number and time points of bladder image capture. Results The probability of a false pathological reading was excluded (0%) with the sum-of-cylinders method for gestational ages of ≥30 weeks. With the ellipsoid method, the risk was higher. The maximum changes which could be exclusively explained by measurement error were four to five times greater with the ellipsoid method compared with the sum-of-cylinders method. Conclusions The present paper illustrates a careful evaluation of the HFUPR measurement error and the implications of using different ultrasound methods for bladder volume estimations. Electronic supplementary material The online version of this article (doi:10.1007/s00404-009-1242-6) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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