Curva de referência da área do septo interventricular fetal pelo método STIC: estudo preliminar

Rôlo, Líliam Cristine; Nardozza, Luciano Marcondes Machado; Júnior, Edward Araujo; Zamith, Marina Maccagnano

doi:10.1590/s0066-782x2011005000036

Cited by 11 publications

(9 citation statements)

References 24 publications

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“…In a preliminary study carried out by our group, 52 normal pregnant women between the 18th and 33rd weeks of pregnancy were eval-uated. A weak correlation was observed between interventricular septum thickness measurements using the B-mode and gestational age, which presented a quasi-linear pattern during this gestational period [8]. This finding proves that the 2-dimensional parameter is inadequate for evaluating the fetal interventricular septum during pregnancy.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the good reliability and interobserver concordance of the method, proven through reproducibility tests, give great support for using the curve. We did not perform intra-observer reproducibility tests, because this had already been proven in our preliminary study [8]. …”

Section: Discussionmentioning

confidence: 99%

“…Voluntary patient participation was sought, and those who agreed signed a consent statement. Out of the total of 328 fetuses, 69 were part of the preliminary study carried out by our group [8]. …”

Section: Methodsmentioning

confidence: 99%

“…In 2011, our group published a preliminary study on 69 normal pregnant women between the 18th and 33rd weeks of pregnancy, in which the fetal intraventricular septum area was evaluated by using STIC in the rendering mode [8]. In that study, a high correlation between septum area and gestational age was observed.…”

Section: Introductionmentioning

confidence: 99%

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Reference Range for Fetal Interventricular Septum Area by Means of Four-Dimensional Ultrasonography Using Spatiotemporal Image Correlation

et al. 2013

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Objective: To determine reference range for fetal interventricular septum area by means of 3-dimensional ultrasonography (3DUS) using the spatiotemporal image correlation (STIC) method. Methods: A prospective, cross-sectional study was conducted on 328 normal pregnant women between the 18th and 33rd gestational weeks. To obtain the interventricular septum area, a virtual plane was used, with the green line (region of interest) adjacent to the external margin of the septum, which was manually delimited. To evaluate the correlation of the septum area with the gestational age, different regression modes were evaluated. The intraclass correlation coefficient was used to evaluate the interobserver reproducibility. Results: The interventricular septum area showed correlation with the gestational age (r = 0.81). The mean increased from 0.47 ± 0.10 cm² in the 18th week to 2.42 ± 1.13 cm² in the 33rd week of gestation. The mathematical equation that best represented this correlation was provided by linear regression: interventricular septum area = 0.0511 × gestational age (R² = 0.095). The interobserver reproducibility was good, with bias of 0.01 cm², precision of 0.07 cm² and absolute limits of agreement of -0.14 and +0.15 cm². Conclusions: Reference range for fetal interventricular septum area were determined by means of 3DUS using STIC in the rendering mode and were shown to be reproducible.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reference Range for Fetal Interventricular Septum Area by Means of Four-Dimensional Ultrasonography Using Spatiotemporal Image Correlation

et al. 2013

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“…According to Turan et al [12], by using a low level of transparency, the rendering mode can be applied to the fetal heart at the boundary between the cardiac chambers and ventricular walls, thereby allowing improved visualization of cardiac structures. Previous studies using 3DUS have evaluated the atrioventricular valve annulus [13,14,15] and the thickness of the interventricular septum in normal fetal hearts [16,17]. …”

Section: Introductionmentioning

confidence: 99%

Fetal Myocardial Wall Area: Constructing a Reference Range by Means of Spatiotemporal Image Correlation in the Rendering Mode

Barros¹,

Moron²,

Rôlo³

et al. 2014

Fetal Diagn Ther

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Objective: To establish the reference range of the myocardial wall area in the fetus using three-dimensional ultrasound in the rendering mode. Methods: A prospective, cross-sectional study including 371 singleton, uncomplicated pregnancies at 20 weeks 0 day to 33 weeks 6 days of gestation was carried out. Cardiac volumes were obtained using spatiotemporal image correlation (STIC) at the level of the four-chamber view. The end-diastolic myocardial area of the both ventricles was measured manually. The intraclass correlation coefficient (ICC) was used to assess intra- and interobserver concordance. Results: The mean myocardial area of the fetal right ventricular (RV) wall ranged from 0.86 ± 0.23 cm² at 20 weeks 0 day to 2.75 ± 0.69 cm² at 33 weeks 6 days of gestation. The mean myocardial area of the fetal left ventricular (LV) wall ranged from 0.82 ± 0.20 cm² at 20 weeks 0 day to 2.49 ± 0.59 cm² at 33 weeks 6 days of gestation. In addition, intra- and interobserver concordance for the myocardial area of the RV and LV walls was good, with ICC values of 0.94, 0.95, 0.85, and 0.93, respectively. Conclusions: The reference range for the myocardial area of the RV and LV walls was determined by cardio-STIC in the rendering mode at 20 weeks 0 day to 33 weeks 6 days of gestation, with good concordance between values.

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Viewing rate and reference ranges for papillary muscle areas of the fetal heart using four‐dimensional ultrasound in the rendering mode

et al. 2014

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Curva de referência da área do septo interventricular fetal pelo método STIC: estudo preliminar

Abstract: Background: Early detection of septal changes such as septal hypertrophy commonly present in fetuses of diabetic mothers would help reduce the high rates of infant mortality.

Cited by 11 publications

References 24 publications

Reference Range for Fetal Interventricular Septum Area by Means of Four-Dimensional Ultrasonography Using Spatiotemporal Image Correlation

Reference Range for Fetal Interventricular Septum Area by Means of Four-Dimensional Ultrasonography Using Spatiotemporal Image Correlation

Fetal Myocardial Wall Area: Constructing a Reference Range by Means of Spatiotemporal Image Correlation in the Rendering Mode

Viewing rate and reference ranges for papillary muscle areas of the fetal heart using four‐dimensional ultrasound in the rendering mode

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