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- Title
Transvaginal sonographic fetal biparietal diameter/kidney length ratio in early pregnancy as a screening tool for renal malformations.
- Authors
Guariglia, Lorenzo; Rosati, Paolo; Guariglia, L; Rosati, P
- Abstract
<bold>Objective: </bold>The aim of the study was to produce by 7.0 MHz high resolution transvaginal scan early in pregnancy normal values of biparietal diameter/kidney length ratio that can be used as reference ranges.<bold>Methods: </bold>In this prospective cross-sectional study, a transvaginal high-resolution sonography was performed between 11 and 16 weeks' gestation in 807 pregnant women with a history of regular cycles, singleton pregnancies and absence of fetal malformations. Measurements of kidney length and biparietal diameter were obtained in all cases and biparietal diameter/kidney length ratio was plotted against gestational age.<bold>Results: </bold>The values of biparietal diameter/kidney length ratio were found to be fairly constant throughout the period evaluated.<bold>Conclusion: </bold>Our results indicate that this new age-independent ratio can be useful in the early detection of some fetal kidney malformations affecting normal growth.
- Subjects
KIDNEY abnormalities; COMPARATIVE studies; FETAL ultrasonic imaging; KIDNEYS; RESEARCH methodology; MEDICAL cooperation; SECOND trimester of pregnancy; REFERENCE values; RESEARCH; EVALUATION research; RESEARCH bias
- Publication
Fetal Diagnosis & Therapy, 1998, Vol 13, Issue 3, p154
- ISSN
1015-3837
- Publication type
journal article
- DOI
10.1159/000020828