Sonography-based Automated Volume Count to estimate fetal urine production in twin-to-twin transfusion syndrome: comparison with Virtual Organ Computer-aided AnaLysis - 22/11/11
, Femke Slaghekke, MD a, Ramesh Papanna, MD, MPH c, Anthony Johnson, DO c, Frank P. Vandenbussche, MD, PhD a, Ron Wolterbeek, MD b, Dick Oepkes, MD, PhD a
Reprints: Willem J. Kist, MD, Department of Obstetrics, Leiden University Medical Center, Room B3-89, PO Box 9600, 2300 RC, Leiden, The NetherlandsRésumé |
Objective |
Sonography-based Automated Volume Count (SonoAVC) is an automated, operator-independent, 3-dimensional ultrasound technique. The study goal was to assess agreement between SonoAVC and Virtual Organ Computer-aided AnaLysis (VOCAL) for bladder volume measurements and fetal urine production (FUP).
Study Design |
This was a prospective study of recipient bladder volumes in twin-to-twin transfusion syndrome acquired with SonoAVC and VOCAL every 2 minutes during 30 minutes before and 24 hours after laser coagulation. FUP formulas: (V2 – V1) × 60/time interval in minutes; and slope of linear regression of ≥3 consecutively increasing bladder volumes × 60 minutes. Bland-Altman plots were used to compare techniques.
Results |
In 38 pregnancies, 560 bladder measurements were acquired. Mean FUP was 7.29 mL/h (95% confidence interval, 5.66–8.92) using SonoAVC and 6.79 mL/h (95% confidence interval, 5.16–8.42) using VOCAL (P = .14). Limits of agreement were −0.20 to 0.22 cm3.
Conclusion |
Fetal bladder volume and FUP measurements using SonoAVC were comparable to VOCAL. SonoAVC is operator independent, easy, and fast.
Le texte complet de cet article est disponible en PDF.Key words : fetal urine production, sonography-based Automated Volume Count, 3-dimensional ultrasound, twin-to-twin transfusion syndrome, Virtual Organ Computer-aided AnaLysis
Plan
| The authors report no conflict of interest. |
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| Cite this article as: Kist WJ, Slaghekke F, Papanna R, et al. Sonography-based Automated Volume Count to estimate fetal urine production in twin-to-twin transfusion syndrome: comparison with Virtual Organ Computer-aided AnaLysis. Am J Obstet Gynecol 2011;205:574.e1-5. |
Vol 205 - N° 6
P. 574.e1-574.e5 - décembre 2011 Retour au numéro
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