Comparison of ultrasonography and MRI in evaluating normal fetal thoracic development
10.13929/j.1003-3289.201809069
- VernacularTitle: 比较超声和MRI评估正常胎儿胸廓发育
- Author:
Xihua LIAN
1
Author Information
1. Department of Ultrasound, the Second Affiliated Hospital of Fujian Medical University
- Publication Type:Journal Article
- Keywords:
Feasibility studies;
Fetus;
Magnetic resonance imaging;
Thorax;
Ultrasonography
- From:
Chinese Journal of Medical Imaging Technology
2019;35(5):720-724
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To compare the repeatability and consistency of ultrasound and MRI in evaluating normal fetal thoracic development. Methods Thirty normal fetuses were selected. The thoracic transverse diameter, anteroposterior diameter, area, circumference, volume and lung volume of fetuses were measured with ultrasonography and MRI. The repeatability and consistency of the measurement results of the same physician and different physicians were analyzed by using intraclass correlation coefficient (ICC) and Bland-Altman, and the correlation of ultrasound and MRI in measuring the lung and thoracic volume was analyzed with Pearson correlation analysis. Results: The inter-/intra-physicians repeatability and consistency of fetal thorax of 2D ultrasound measurement were higher than those of MRI, while the intra-/inter-operator repeatability and consistency of fetal thoracic volume and lung volume measured with MRI were higher than those with ultrasound. The inter-physicians reproducibility and consistency of ultrasound in measuring fetal thoracic transverse diameter were the highest (ICC=0.996 4, 95%CI [0.992 5, 0.998 3]), boundary width=-0.004 7±0.057 3, 95%CI [-0.026 1, 0.016 7]). The fetal lung volume and thoracic volume measured with ultrasound were correlated with MRI (r=0.915, 0.957, both P<0.001). Conclusion: Ultrasonography and MRI are feasible in evaluating normal fetal thoracic development. Ultrasonography is superior to MRI in measuring 2D indexes of fetal thoracic development, while MRI is superior to ultrasound in measuring 3D indexes of fetal thoracic development, but the results have high correlation.
