A Nomogram of Fetal Lung Volumes Estimated by 3‐Dimensional Ultrasonography Using the Rotational Technique (Virtual Organ Computer‐Aided Analysis)

Ruano, Rodrigo; Joubin, Laurence; Aubry, Marie Cécile; Thalabard, J. C.; Dommergues, Marc; Dumez, Yves; Benachi, Alexandra

doi:10.7863/jum.2006.25.6.701

Cited by 62 publications

(79 citation statements)

References 25 publications

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“…2 a) and the ipsilateral lung volumes of right-sided CDH cases in the nomogram of the right fetal lung volumes ( fig. 2 b) [26] . It was not possible to identify the ipsilateral lungs to the diaphragmatic defect in 6 (19.4%) fetuses (4 left-sided CDH and 2 rightsided CDH) and the ipsilateral lung volumes were considered equal to 0.01 cm 3 .…”

Section: Resultsmentioning

confidence: 99%

“…The ipsilateral lung volumes were compared to nomograms of right and left pulmonary volumes previously described [26] , and the observed/expected ipsilateral lung volume ratios (o/e-Ipsi-FLVR) were then calculated. Correlations between the o/e-Ipsi-FLVR, the o/e-TotFLVR and the LHR were analyzed by Pearson correlation test (SPSS 14, Microsoft, USA).…”

Section: Discussionmentioning

confidence: 99%

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Ipsilateral Lung Volumes Assessed by Three-Dimensional Ultrasonography in Fetuses with Isolated Congenital Diaphragmatic Hernia

et al. 2008

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Objective: To evaluate the precision of three-dimensional ultrasonography (3DUS) in estimating the ipsilateral lung volume and the potential of this measurement to predict neonatal death in congenital diaphragmatic hernia (CDH). Methods: Between January 2002 and December 2004, the ipsilateral lung volumes were assessed by 3DUS using the technique of rotation of the multiplan imaging in 39 fetuses with CDH. The observed/expected ipsilateral lung volume ratios (o/e-IpsiFLVR) were compared to the lung/head ratios (LHR) and to the observed/expected total fetal lung volume ratios (o/e-TotFLVR) as well as to postnatal death. Results: Ipsilateral lung volumes (median 0.12, range 0.01–0.66) were more reduced than the total lung volumes (median 0.52, range 0.11–0.95, p < 0.001) in CDH. The bias and precision of 3DUS in estimating ipsilateral lung volumes were –0.61 and 0.99 cm³, respectively, with absolute limits of agreement from –2.56 to +1.33 cm³. The o/e-IpsiFLVR was lower in neonatal death cases (median 0.09, range 0.01–0.46) than in survivals (median 0.18, range 0.01–0.66), but this difference was not statistically significance (p > 0.05). The sensitivity, specificity, (positive and negative) predictive values and accuracy of o/e-IpsiFLVR in predicting neonatal death was 52.6% (10/19), 83.3% (10/12), 83.3% (10/12), 52.6% (10/19) and 64.5% (20/31), respectively. Conclusion: Although the ipsilateral lung volume can be measured by 3DUS, it cannot be used to predict neonatal death when considering it alone. However, it is important to measure it to calculate the total fetal lung volumes as the o/e-TotFLVR has the best efficacy in predicting neonatal death in isolated CDH.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Ipsilateral Lung Volumes Assessed by Three-Dimensional Ultrasonography in Fetuses with Isolated Congenital Diaphragmatic Hernia

et al. 2008

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“…The spectrum of these malforma- tions can range from those with excellent neonatal prognosis to lethal conditions such as bilateral renal agenesis or infantile polycystic disease. Three-dimensional US offers a more accurate volumetric estimation of fetal organs than 2D-US [14,15] , thus allowing a better assessment of growth. In a recent study, Chang et al [8] reported that RV estimated by the multiplanar method was a good predictor of intrauterine growth restriction (using the 10th percentile as a cut-off), with a sensitivity of 96.4%, a specificity of 95.9%, a positive predictive value of 75.0% and a negative predictive value of 99.5%.…”

Section: Discussionmentioning

confidence: 99%

Reference Range of Fetal Renal Volume by Three-Dimensional Ultrasonography Using the Vocal Method

et al. 2009

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Objective: To establish reference values for fetal renal volume by three-dimensional sonography using the VOCAL (Virtual Organ Computer-Aided Analysis) method. Methods: This prospective longitudinal study involved 57 healthy pregnant women who were examined between 24 and 34 weeks of pregnancy. Each fetal kidney was evaluated separately using the VOCAL method with a 30° rotation angle. For each gestational age, the following measures were obtained for the right and left kidneys: mean, standard deviation, minimum and maximum values, and the 5th, 10th, 25th, 50th, 75th and 90th percentiles. Polynomial regression models were constructed to assess the relationship between renal volume and gestational age, adjusted by the determination coefficient (R²). The Wilcoxon test was used to evaluate the concordance between the right and left renal volumes. Bland-Altman graphs were used to assess intra- and inter-observer variability. Results: The right renal volume increased from 4.5 ± 1.3 cm³ at 24 weeks to 12.1 ± 1.5 cm³ at 34 weeks. The left renal volume increased from 4.6 ± 0.8 cm³ at 24 weeks to 11.9 ± 1.1 cm³ at 34 weeks. There was a strong correlation between both the right and left renal volumes and gestational age (R² = 0.975 and 0.970, respectively). There were no significant differences between the right and left renal volumes. The mean difference between repeated measures by the same examiner was –0.07 cm³ (–0.88 to 0.75) for the right kidney and –0.21 cm³ (–0.95 to 0.75) for the left kidney. The mean difference between repeated measures obtained by two different examiners was –0.07 cm³ (–1.25 to 1.12) for the right kidney and 0 cm³ (–1.53 to 1.53) for the left kidney. Conclusion: Reference values were generated for fetal renal volume assessed by three-dimensional ultrasonography using the VOCAL method.

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“…Contralateral lung volume was compared with nomograms of right and left pulmonary volumes published previously, 22 and the observed/expected contralateral lung volume ratio (o/eContFLVR) was calculated and compared with the lung/head ratio (LHR), observed/expected total fetal lung volume ratio (o/e-TotFLVR), and neonatal outcome. Correlation between the o/eContFLVR, o/e-TotFLVR, and LHR was analyzed by Pearson correlation test (SPSS for Windows version 14, Microsoft Corporation, Chicago, IL, USA).…”

Section: Methodsmentioning

confidence: 99%

Three‐dimensional sonographic measurement of contralateral lung volume in fetuses with isolated congenital diaphragmatic hernia

Ruano

Aubry

Barthe

et al. 2007

J of Clinical Ultrasound

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A Nomogram of Fetal Lung Volumes Estimated by 3‐Dimensional Ultrasonography Using the Rotational Technique (Virtual Organ Computer‐Aided Analysis)

Abstract: A new nomogram of fetal lung (right, left, and total) volumes throughout gestational age using the rotational technique (VOCAL) is described, and reference values have been generated.

Cited by 62 publications

References 25 publications

Ipsilateral Lung Volumes Assessed by Three-Dimensional Ultrasonography in Fetuses with Isolated Congenital Diaphragmatic Hernia

Ipsilateral Lung Volumes Assessed by Three-Dimensional Ultrasonography in Fetuses with Isolated Congenital Diaphragmatic Hernia

Reference Range of Fetal Renal Volume by Three-Dimensional Ultrasonography Using the Vocal Method

Three‐dimensional sonographic measurement of contralateral lung volume in fetuses with isolated congenital diaphragmatic hernia

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