Navegando por Palavras-chave "Crown-rump length"
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- ItemAcesso aberto (Open Access)Avaliação do coração fetal no primeiro trimestre de gestação: influência do comprimento cabeça-nádega e índice de massa corporal materna(Sociedade Brasileira de Cirurgia Cardiovascular, 2013-12-01) Pares, David Baptista da Silva [UNIFESP]; Lima, Angélia Iara Felipe [UNIFESP]; Araujo Júnior, Edward [UNIFESP]; Nardozza, Luciano Marcondes Machado [UNIFESP]; Martins, Wellington P.; Moron, Antonio Fernandes [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Universidade de São Paulo (USP)OBJECTIVE: To evaluate the influence of the crown-rump length and body mass index on sonographic evaluation of the fetal heart using abdominal and vaginal routes in the first trimester of pregnancy. METHODS: We conducted a cross-sectional study with 57 pregnant women between 12-14 weeks (CRL< 84 mm). We evaluated the following fetal cardiac plans using the abdominal and vaginal routes: four-chamber view, right ventricle outflow tract, left ventricle outflow tract and aortic arch. We used the B-mode, color Doppler and four-dimensional ultrasonography (spatio-temporal image correlation). To evaluate the influence of crown-rump length and body mass index in the assessment of fetal cardiac planes, we used the t test unpaired. RESULTS: There were no statistically significant differences in the rates of success and failure between abdominal and vaginal routes in relation to body mass index, however, there was a higher failure rate in vaginal assessment using B mode associated with color Doppler (P<0.01). CONCLUSION: The crown-rump length and body mass index had no interference in fetal cardiac assessment in the first trimester of pregnancy.
- ItemSomente MetadadadosEmbryo vascularization by three-dimensional power Doppler ultrasonography at 7-10 weeks of pregnancy(Walter de Gruyter Gmbh, 2009-07-01) Bortoletti Filho, Joao [UNIFESP]; Marcondes, Luciano [UNIFESP]; Nardozza, Machado [UNIFESP]; Araujo Junior, Edward [UNIFESP]; Rolo, Liliam Cristine [UNIFESP]; Nowak, Paulo Martin [UNIFESP]; Guimaraes Filho, Helio Antonio [UNIFESP]; Moron, Antonio Fernandes [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Aim: Assess vascular indices of 7-10 week embryos using three-dimensional power Doppler (3DPD) and correlate them with the crown-rump length (CRL).Methods: This cross-sectional study included 65 healthy pregnancies between 7 and 10 weeks. the three-dimensional volume of the embryo was obtained using an endocavitary volumetric transducer and the VOCAL (Virtual Organ Computer-aided Analysis) method, with a 128 rotation angle and 15 sequential planes. the vascularization (VI), flow (FI) and the vascular and flow (VFI) indices were obtained using 3DPD and the mean, median, standard deviation, maximum and minimum values were calculated for each gestational age. Pearson's correlation coefficient (r) was used to evaluate the correlation between vascular indices and CRL.Results: the VI ranged from 0.77 to 41.67, mean 14.68 (+/- 8.60), the FI went from 25.71 to 139.50, mean 90.61 (+/- 21.51) and the VFI from 0.20 to 81.57, mean 15.69 (+/- 12.42). the correlation between CRL and all 3D power Doppler vascular indices was low (VI - r=-0.073, P=0.566; FI - r=0.173, P=0.168 and VFI - r=-0.004, P=0.974).Conclusion: 3D power Doppler vascular indices in 7 - 10 week embryos do not correlate with CRL.
- ItemSomente MetadadadosEvaluation of Placental Volume at 7-10+6 Weeks of Pregnancy by 3D-Sonography(W B Saunders Co Ltd, 2009-07-01) Nardozza, L. M. M. [UNIFESP]; Nowak, P. M. [UNIFESP]; Araujo Junior, E. [UNIFESP]; Guimaraes Filho, H. A. [UNIFESP]; Rolo, L. C. [UNIFESP]; Torloni, M. R. [UNIFESP]; Moron, A. F. [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)The aim of the study was to establish normative data for placental volume (PV) at 7-10+6 weeks of gestation using three-dimensional ultrasound (3DUS). the cross-sectional study involved 70 healthy pregnancies between 7 and 11 weeks. the VOCAL (Virtual Organ Computer-aided Analysis) method with a 30 rotation angle and six planes was used for volumetric calculations. Regression models were constructed to assess the correlation between PV and crown-rump length (CRL) adjusted by the determination coefficient (R(2)). the method proposed by Royston and Wright was used to establish the 2.5th; 10th; 50th; 90th and 97.5th percentiles (percentile = mean + K x SD). the intraclass correlation coefficient (ICC), Bland-Altman graphs and Student's paired t-tests were used to assess intra- and interobserver variability. PV ranged from 1.7 to 42.6 cm(3), with a mean of 13.6 cm(3) ( 9A cm(3)). There was a strong correlation between PV and CRL; the exponential equation was the model that best expressed the correlation between them (R(2) = 0.76). for CRL between 9 and 40 mm, the mean PV increased 10.5 times, while CRL increased only 4.4 times. Inter- and intraobserver correlation were excellent (ICC=0.979 and 0.971, respectively). Bland-Altman graphs indicated a good reproducibility with a mean intraobserver and interobserver difference of 0.2 cm(3) (95% CI: -0.7-1.2 cm(3)) and -0.2 cm(3) (95% CI: -1.3-0.9 cm(3)), respectively. Reference limits were generated for first trimester PV assessed by 3DUS using the VOCAL method. There is a strong correlation between PV and CRL Placental volume obtained through this method was highly reproducible. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
- ItemSomente MetadadadosGestational sac volume by 3D-sonography at 7-10 weeks of pregnancy using the VOCAL method(Springer, 2009-06-01) Rolo, Liliam Cristine [UNIFESP]; Machado Nardozza, Luciano Marcondes [UNIFESP]; Araujo Junior, Edward [UNIFESP]; Nowak, Paulo Martin [UNIFESP]; Moron, Antonio Fernandes [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Establish normative data for gestational sac volume (GSV) between 7 and 10 weeks gestation using three-dimensional ultrasonography (3DUS).A cross-sectional study involving 74 normal pregnancies was performed to assess GSV between 7 and 10 weeks gestation. All measurements were performed using an endocavitary volumetric transducer. the virtual organ computer-aided analysis (VOCAL) method was used for volumetric calculations, with a 30A degrees rotation angle. To analyze the correlation between GSV and gestational age, regression models were constructed and adjustments were made using the determination coefficient (R (2)). for each week the mean, median, standard-deviation, minimum and maximum GSV values were calculated. the method proposed by Royston and Wright was used to calculate the reference intervals according to crown-rump length (CRL). the interclass correlation coefficient (ICC) and Bland-Altman graph were used to evaluate intraobserver variability.There was a high correlation between GSV and gestational age (R (2) = 0.816). Mean GSV increased from 8.50 cm(3) at 7 weeks to 44.35 cm(3) at 10 weeks. There was also a significant correlation between GSV and CRL (R (2) = 0.693) with mean GSV increasing from 5.00 to 50.28 cm(3) for CRL between 9 and 40 mm. Intraobserver variability was excellent with an ICC = 0.9997 (95% CI, 0.9994-0.9998), with an average difference between measurements of 0.5 cm(3).There is a correlation between GSV and CRL and this is a reproducible first trimester parameter. Reference limits for GSV using 3DUS were generated for pregnancies between 7 and 10 weeks.
- ItemSomente MetadadadosThree-dimensional power Doppler placental vascularisation indices in early pregnancy: A pilot study(Informa Healthcare, 2011-05-01) Araujo Junior, E. [UNIFESP]; Nardozza, L. M. M. [UNIFESP]; Nowak, P. M. [UNIFESP]; Rolo, L. C. [UNIFESP]; Guimaraes Filho, H. A. [UNIFESP]; Moron, A. F. [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)The objective of our study was to assess 1st trimester placental vascularisation using three-dimensional (3D) power Doppler vascular indices. A cross-sectional study was used involving 41 normal pregnancies from 7 to 10 + 6 weeks. Placental volume was obtained using the 30 degrees virtual organ computer-aided analysis (VOCAL) method. the mean, median, standard deviation (SD), minimum and maximum values were calculated for three vascular indices: the VI, vascularisation index; the FI, flow index and the VFI, vascularisation and flow index. Pearson's correlation coefficient (r) was used to assess the correlation between vascular indices and crown-rump length (CRL). Our results showed mean (+/- SD) values ranged from 8.66 +/- 12.04 to 15.34 +/- 13.89 for the VI, from 63.83 +/- 43.61 to 109.22 +/- 33.87 for the FI and from 9.52 +/- 13.86 to 20.59 +/- 22.97 for the VFI. There was no correlation between CRL and VI (r = 0.073, p = 0.630) nor VFI (r = 0.147 and p = 0.037); there was a weak correlation between CRL and FI (r = 0.332, p = 0.037). It was concluded that the FI was the only 3D power Doppler vascular index that was correlated with CRL between 7 and 10 + 6 weeks' gestation.
- ItemAcesso aberto (Open Access)Volume do embrião estimado pela ultra-sonografia tridimensional entre a sétima e a décima semana de gestação(Federação Brasileira das Sociedades de Ginecologia e Obstetrícia, 2008-10-01) Bortoletti Filho, João [UNIFESP]; Nardozza, Luciano Marcondes Machado [UNIFESP]; Araujo Júnior, Edward [UNIFESP]; Rôlo, Líliam Cristine; Nowak, Paulo Martin [UNIFESP]; Moron, Antonio Fernandes [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)PURPOSE: to evaluate the embryo's volume (EV) between the seventh and the tenth gestational week, through tridimensional ultrasonography. METHODS: a transversal study with 63 normal pregnant women between the seventh and the tenth gestational week. The ultrasonographical exams have been performed with a volumetric abdominal transducer. Virtual Organ Computer-aided Analysis (VOCAL) has been used to calculate EV, with a rotation angle of 12º and a delimitation of 15 sequential slides. The average, median, standard deviation and maximum and minimum values have been calculated for the EV in all the gestational ages. A dispersion graphic has been drawn to assess the correlation between EV and the craniogluteal length (CGL), the adjustment being done by the determination coefficient (R²). To determine EV's reference intervals as a function of the CGL, the following formula was used: percentile=EV+K versus SD, with K=1.96. RESULTS: CGL has varied from 9.0 to 39.7 mm, with an average of 23.9 mm (±7.9 mm), while EV has varied from 0.1 to 7.6 cm³, with an average of 2.7 cm³ (±3.2 cm³). EV was highly correlated to CGL, the best adjustment being obtained with quadratic regression (EV=0.2-0.055 versus CGL+0.005 versus CGL²; R²=0.8). The average EV has varied from 0.1 (-0.3 to 0.5 cm³) to 6.7 cm³ (3.8 to 9.7 cm³) within the interval of 9 to 40 mm of CGL. EV has increased 67 times in this interval, while CGL, only 4.4 times. CONCLUSIONS: EV is a more sensitive parameter than CGL to evaluate embryo growth between the seventh and the tenth week of gestation.