We present a patient with severe tracheal stenosis resulting from a compression by the innominate artery 6 months after an arterial switch operation in a dextro-transposition of the great arteries. Segmentation and three-dimensional (3D) visualization were derived from a contrast-enhanced dual-source computed tomography and post-processing was performed using a dedicated open-source platform (3D Slicer). Post-processing allowed a comprehensible visualization of the relationship of the innominate artery to the trachea when compared to standard computer tomography reformations. Finally, the surgical approach to move the innominate artery anteriorly in order to relieve the tracheal obstruction was emphasized based on the improved 3D visualization of the actual pathology. An effective aortopexy could be performed and the postoperative result was confirmed by a second 3D visualization. About 3 months of follow-up, the patient is completely asymptomatic. Three-dimensional visualization offers excellent opportunities for diagnosis, treatment planning and follow-up in patients with a vascular-related tracheal stenosis in the context of congenital heart disease.

中文翻译：

---

使用 3D 可视化作为最佳工具来规划和验证患有严重气管狭窄的先天性心脏病患者的主动脉固定术

我们介绍了一名患有严重气管狭窄的患者，该患者在大动脉右转转位中的动脉开关手术后 6 个月因无名动脉受压而导致气管狭窄。分割和三维 (3D) 可视化源自对比度增强的双源计算机断层扫描，并使用专用的开源平台 (3D Slicer) 执行后处理。与标准计算机断层扫描改造相比，后处理允许对无名动脉与气管的关系进行可理解的可视化。最后，在改进的实际病理的 3D 可视化的基础上，强调了向前移动无名动脉以缓解气管阻塞的手术方法。可以进行有效的主动脉固定术，术后结果通过第二次 3D 可视化得到证实。约3个月随访，患者完全无症状。三维可视化为先天性心脏病背景下的血管相关气管狭窄患者的诊断、治疗计划和随访提供了极好的机会。