Clínica de Diagnóstico por Imagem, Rio de Janeiro, Brazil.
Ultrasound Obstet Gynecol. 2013 Jan;41(1):90-4. doi: 10.1002/uog.11162.
We report on four cases of fetal cervical tumor, comprising three lymphangiomas and one teratoma, evaluated by ultrasound and magnetic resonance imaging (MRI) between 26 and 37 weeks' gestation. The aim was to investigate the use of virtual bronchoscopy to evaluate fetal airway patency in each case. A three-dimensional (3D) model of the airway was created from overlapping image layers generated by MRI. The files obtained were manipulated using 3D modeling software, allowing the virtual positioning of observation cameras, adjustment of lighting parameters and creation of simulated 3D movies for analysis of a virtual path through the model. In all fetuses, fetal airway patency was clearly demonstrated by virtual bronchoscopy and this was confirmed postnatally. MRI with virtual bronchoscopy could become a useful tool for studying fetal airway patency in cases of cervical tumor.
我们报告了 4 例胎儿颈部肿瘤病例，包括 3 例淋巴管瘤和 1 例畸胎瘤，这些病例在 26 至 37 孕周通过超声和磁共振成像（MRI）进行评估。目的是探讨在每个病例中使用虚拟支气管镜检查评估胎儿气道通畅性。通过 MRI 生成的重叠图像层创建气道的三维（3D）模型。使用 3D 建模软件处理获得的文件，允许虚拟定位观察相机，调整照明参数并创建模拟 3D 电影，以分析通过模型的虚拟路径。在所有胎儿中，通过虚拟支气管镜检查清楚地显示了胎儿气道的通畅性，并且在产后得到了证实。MRI 结合虚拟支气管镜检查可能成为研究颈部肿瘤胎儿气道通畅性的有用工具。
