Fetal lung volumetry using two‐ and three‐dimensional ultrasound

Moeglin, D.; Talmant, C.; Duyme, M.; Lopez, Alexis

doi:10.1002/uog.1799

Cited by 111 publications

(130 citation statements)

References 43 publications

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“…RaineFenning et al 8 demonstrated that this rotational technique is better than the conventional measuring method. After several in vitro 8 and in vivo [9][10][11] experiments, the VOCAL imaging application is now considered to be the 'gold standard' for volume measurements in ultrasound imaging.…”

Section: Introductionmentioning

confidence: 99%

Early pregnancy volume measurements: validation of ultrasound techniques and new perspectives

Rousian¹,

Verwoerd-Dikkeboom²,

Koning³

et al. 2008

BJOG

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Objective To investigate accuracy and reliability of four different ultrasound-related volume-measuring methods.Design Observational study.Setting Both in vitro and in vivo.Population or Sample Ten phantoms for in vitro measurements and 28 pregnancies with gestational ages ranging from 6 to 11 weeks for in vivo measurements were included.Methods Three-dimensional (3D) ultrasound images of phantoms (with known variable contents) and yolk sacs were used to calculate volumes using four different methods: Virtual Organ Computed-Aided AnaLysis (VOCAL), inversion mode, Sono Automatic Volume Calculation (SonoAVC) and V-Scope. V-Scope is a newly developed 3D volume visualisation application using a Barco I-Space virtual reality system. Intra-and interobserver agreement was established by calculating intraclass correlation coefficients (ICC).Main outcome measure Evaluation of accuracy and reliability by comparing the different techniques with true volumes (in vitro) and with each other (in vitro and in vivo).Results In the in vitro study, volume measurements by VOCAL, inversion mode and V-Scope proved to be accurate. SonoAVC measurements resulted in a substantial systematic underestimation. Correlation coefficients of measured versus true volumes were excellent in all four techniques. For all techniques, an intra-and interobserver agreement of at least 0.91 was found. Yolk sac measurements by the different techniques proved to be highly correlated (ICCs > 0.91).Conclusions We demonstrated that VOCAL, inversion mode and V-Scope can all be used to measure volumes of hypoechoic structures. The newly introduced V-Scope application proved to be accurate and reliable.

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Section: Introductionmentioning

confidence: 99%

Early pregnancy volume measurements: validation of ultrasound techniques and new perspectives

Rousian¹,

Verwoerd-Dikkeboom²,

Koning³

et al. 2008

BJOG

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“…Desde então, pesquisas científicas comparam a tecnologia 3D com a 2D nas diversas áreas da medicina, testando a sensibilidade de ambos os métodos [15][16][17] .…”

Section: Discussionunclassified

Comprimento do colo uterino e dilatação do orifício interno avaliados pela ultra-sonografia bidimensional e tridimensional

Brandão¹,

Murta²,

Moron³

et al. 2006

Rev. Bras. Ginecol. Obstet.

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RESUMOObjetivo: comparar as medidas do comprimento da cérvice e afunilamento, obtidas por ultra-sonografia transvaginal bidimensional e tridimensional na gestação. Métodos: estudo descritivo, prospectivo, com comparação de grupos realizado no período de abril de 2004 a fevereiro de 2005. Foram incluídas 74 gestantes com idade gestacional entre a 19 a e a 24 a semana, independente da presença ou não de fatores de risco para parto prematuro. O exame ultra-sonográfico da cérvice foi efetuado uma única vez na mesma paciente e por único observador. As medidas aferidas por ultra-sonografia bidimensional foram feitas no momento da realização dos exames, e pela tridimensional, com intervalo de 7 a 15 dias do exame bidimensional. A medição do comprimento da cérvice, diâmetro e comprimento do funil cervical foi realizada por ultra-sonografia bidimensional no plano sagital e tridimensional nos planos sagital e coronal. Para testar a diferença estatística entre os resultados médios das medidas do comprimento cervical obtidas nos exames bi e tridimensional, foi utilizado o teste t pareado. Também foi calculado para essas medidas o coeficiente de correlação de Pearson. Resultados: objetivando-se determinar associação linear entre elas encontramos diferença significante entre as medidas aferidas no plano sagital por meio da ultra-sonografia bidimensional e plano coronal da USG 3D (p=0,009), e na ultra-sonografia tridimensional entre os cortes sagital e coronal (p=0,001), sendo as médias das medidas do comprimento cervical (±desvio padrão) de 3,9±0,92c; 4,1±0,97 e 3,9±0,88 cm, respectivamente. O número de afunilamento em nossa casuística foi de 9/74 exames (12,1%). As ultra-sonogafias bi-e tridimensional visualizaram o mesmo número de afunilamento (8/9). Na ultra-sonografia tridimensional, o corte coronal detectou número maior de funil cervical que o corte sagital (8/9). Não houve diferença significativa entre as médias das medidas do comprimento do colo aferidas por ultra-sonografia bidimensional e tridimensional no plano sagital (p=0,23), entretanto houve diferença entre as médias das medidas da cérvice mensuradas por ultra-sonografia bidimensional no corte sagital e tridimensional no coronal (p=0,009), e na ultra-sonografia tridimensional entre os planos sagital e coronal (p=0,001). Os exames bidimensional e tridimensional visualizaram o mesmo número de funil cervical, demonstrando concordância entre os métodos (teste kappa=0,86). Na comparação das médias das medidas do afunilamento, não houve diferença estatística (p>0,05). Conclusão: existem diferenças entre as medidas do comprimento cervical, obtidas por ultra-sonografia bidimensional e tridimensional, testando o plano coronal do exame tridimensional. Rev Bras Ginecol Obstet. 2006; 28(7): 397-402 PalavRasArtigos Originais

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“…The pathology from the fetal pneumonectomy demonstrated pulmonary hyperplasia consistent with bronchial atresia without evidence of CCAM-like changes. Serial ultrasound examinations demonstrated slow growth of the hypoplastic right lung to a maximum calculated volume of 17 ml 1 month postoperatively (mean normal right lung volume at 31 weeks' gestation is 27.7-28.53 ml) [8,9,10]. The fetal liver showed multiple areas of increased sonolucency concerning for areas of liver infarction believed to be a sequelae of the intraoperative fetal cardiac arrest (fig.…”

Section: Case Reportsmentioning

confidence: 99%

Open Fetal Surgery for Central Bronchial Atresia

Peranteau

Moldenhauer²,

Khalek³

et al. 2014

Fetal Diagn Ther

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Mainstem or lobar bronchial atresia is associated with massive pulmonary hyperplasia, contralateral pulmonary hypoplasia, non-immune hydrops and a fatal fetal prognosis. Open fetal surgery currently provides a potential therapeutic option for management of a fetus with this diagnosis. We present 2 cases of open fetal surgery for bronchial atresia at the level of the mainstem and lobar bronchus. The first case involved a left pneumonectomy performed at 26 weeks' gestation. After successful intraoperative resuscitation for fetal cardiac arrest, the fetus survived until 32 weeks' gestation when preterm premature rupture of membranes prompted delivery. The neonate expired on day of life (DOL)1. The second case involved a left upper lobectomy performed at 24³/₇ weeks' gestation. The fetus was delivered at 34³/₇ weeks' gestation and, after a prolonged NICU course including a completion pneumonectomy and tracheostomy, was discharged home at 8 months of life. This second case is the first report of survival following open fetal surgery for central bronchial atresia. This report highlights the potential benefit of fetal lung resection for central bronchial atresia while describing the many challenges to achieve the successful management of a fetus with this condition.

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Fetal lung volumetry using two‐ and three‐dimensional ultrasound

Abstract: Objectives

Cited by 111 publications

References 43 publications

Early pregnancy volume measurements: validation of ultrasound techniques and new perspectives

Early pregnancy volume measurements: validation of ultrasound techniques and new perspectives

Comprimento do colo uterino e dilatação do orifício interno avaliados pela ultra-sonografia bidimensional e tridimensional

Open Fetal Surgery for Central Bronchial Atresia

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