Reference Intervals for Fetal Heart Volume From 3-Dimensional Sonography Using the Extended Imaging Virtual Organ Computer-Aided Analysis Method at Gestational Ages of 20 to 34 Weeks
| Autor: | E. Q. Barreto, Antonio Fernandes Moron, L. M. M. Nardozza, H.J. Milani, Araujo Júnior E, K. K. Haratz |
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| Přispěvatelé: | Universidade Federal de São Paulo (UNIFESP), Universidade de São Paulo (USP), Escola Ultrasonog & Reciclagem Med Ribeirao Preto, Inst Nacl Ciencia & Tecnol Hormonios & Saude Mulh |
| Rok vydání: | 2012 |
| Předmět: |
Adult
Percentile medicine.medical_specialty Gestational Age Fetal heart Reference range Ultrasonography Prenatal extended imaging virtual organ computer-aided analysis 3-dimensional sonography Fetal Heart Imaging Three-Dimensional Pregnancy Reference Values Humans Medicine Radiology Nuclear Medicine and imaging Prospective Studies reference range Analysis method Radiological and Ultrasound Technology business.industry fetal heart volume Reproducibility of Results Gestational age Image Enhancement Surgery Cross-Sectional Studies Great vessels Gestation Female business Nuclear medicine Software Volume (compression) |
| Zdroj: | Repositório Institucional da UNIFESP Universidade Federal de São Paulo (UNIFESP) instacron:UNIFESP |
| ISSN: | 0278-4297 |
| DOI: | 10.7863/jum.2012.31.5.673 |
| Popis: | Objectives-The purpose of this study was to establish the reference range for fetal heart volume from 3-dimensional (3D) sonography using the extended imaging virtual organ computer-aided analysis method.Methods-The fetal heart volume was measured in 303 normal singleton pregnancies at gestational ages of 20 to 34 weeks using 3D sonography. The extended imaging virtual organ computer-aided analysis method was used to obtain a sequence of 10 parallel symmetric sections through the heart, according to examiner-determined limits (the apex at one extremity and the connection to the great vessels at the other). Heart contours were drawn manually in all sections to obtain the 3D volume measurement, which was provided automatically by the software. Normal z scores and percentile reference ranges for each gestational age were constructed.Results-The fetal heart volume increased with gestational age. The mean values were 3.09 mL at 20 weeks, 9.18 mL at 26 weeks, and 24.89 mL at 34 weeks, according to the following formulas: fetal heart volume (mL) = 18.0076 - 2.1005 x gestational age + 0.0677 x gestational age(2) (R-2=0.922); and SD (mL) = (4.5038 - 0.4281 x gestational age + 0.0114 x gestational age(2)) x root 1.495808 (R-2=0.922).Conclusions-A reference range for fetal heart volume using the 3D sonographic extended imaging virtual organ computer-aided analysis method at gestational ages of 20 to 34 weeks was established. Univ Fed Sao Paulo, Dept Obstet, BR-05303000 Sao Paulo, SP, Brazil Univ Fed Sao Paulo, Dept Obstet, BR-05303000 Sao Paulo, SP, Brazil Web of Science |
| Databáze: | OpenAIRE |
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