Fetal lung volumetry using two- and three-dimensional ultrasound
| Autor: | C. Talmant, A. C. Lopez, D. Moeglin, M. Duyme |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Adult
medicine.medical_specialty Adolescent Gestational Age Ultrasonography Prenatal Pulmonary hypoplasia Fetus Pregnancy medicine Humans Radiology Nuclear Medicine and imaging 3D ultrasound Lung volumes Lung Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Ultrasound Obstetrics and Gynecology Magnetic resonance imaging General Medicine Nomogram medicine.disease medicine.anatomical_structure Reproductive Medicine Regression Analysis Female Radiology business Volume (compression) |
| Zdroj: | Ultrasound in Obstetrics and Gynecology. 25:119-127 |
| ISSN: | 1469-0705 0960-7692 |
| DOI: | 10.1002/uog.1799 |
| Popis: | Objectives To compare methods of measuring fetal pulmonary volume and to establish nomograms of fetal pulmonary volume according to gestational age for the accurate diagnosis of pulmonary hypoplasia. Methods Three methods of measuring fetal pulmonary volume in 39 normal fetuses were compared: two-dimensional (2D) ultrasound measurement assuming that the lung is a geometrical pyramid, three-dimensional (3D) ultrasound using the VOCAL rotational method, and the conventional multiplanar 3D mode. Linear regression was used to construct an equation for 3D volume calculation from 2D measurements (the re-evaluated pulmonary volume equation (RPVE)). Lung volume measurements were recorded from 622 singleton fetuses in order to construct nomograms. Results There was no statistically significant difference between the lung volume values obtained using the two 3D modes. However, in comparison with the 2D measurements the volumes obtained were larger (mean difference = 11.99, P < 0.1 × 10−6). The relationship between the 2D and 3D volumes was determined using a statistical linear regression method: RPVE (mL) = 4.24 + (1.53 × 2DGPV), where 2DGPV (2D geometric pulmonary volume) = (surface area right lung base (cm2) + surface area left lung base (cm2)) × 1/3 height right lung (cm). Two nomograms were constructed, one for use with 2D and one for 3D technology. Conclusion 2D pulmonary volume assessment can be used in clinical situations where fetal prognosis depends on lung volume and its growth potential. It is routinely available and easy to perform particularly when repeat measurements are required in evaluation of lung growth. We therefore propose this method as an alternative to magnetic resonance imaging or 3D ultrasound. Copyright © 2005 ISUOG. Published by John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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