MSCT and MR three-dimensional turbo field echo sequences in diagnosis of children bilateral tracheal bronchi / 中国医学影像技术

ABSTRACT

Objective: To observe clinical value of MSCT and MR three-dimensional turbo field echo (3D-TFE) in diagnosis of children bilateral tracheal bronchi. Methods: Data of 14 cases of children bilateral tracheal bronchi examined with MSCT or MR were retrospectively reviewed. Minimum intensity projection was used to reconstruct the airway in 10 children who underwent MSCT scanning, while maximum intensity projection was used to appear the airway in 4 children underwent MR 3D-TFE. According to MSCT or MRI, bilateral tracheal bronchi were divided into standard type (bilateral tracheal bronchi originated from the upper part of tracheal eminence), critical type (bilateral tracheal bronchi originated from the beginning of tracheal eminence) or mixed type (bilateral tracheal bronchi originated from different locations). The characteristics and other heart anomalies of these children were recorded. Results: Bilateral tracheal bronchi were showed clearly on both MSCT and MR 3D-TFE images. Among 14 cases, 8 cases (8/14, 57.14%) were found with standard type bilateral tracheal bronchi, 5 cases (5/14, 35.71%) were found with borderline type, 1 case (1/14, 7.14%) was found with mixed type bilateral tracheal bronchi. All 14 children (14/14, 100%) were detected with asplenia syndrome. The most common cardiac malformations included common atrioventricular canal (12/14, 85.71%), pulmonary stenosis (11/14, 78.57%) and persistent left superior vena cava (11/14, 78.57%). Conclusion: MSCT and MR 3D-TFE sequences have good diagnostic value for assessing bilateral tracheal bronchi.