Abstract
Background : Although the usefulness of three dimensional CT scan (3-D CT) is well-known for adults, this doesn't hold true for children. In recent years, we have performed 3-D CT for nine cases and obtained fine images in the pediatric age group. Aim : To evaluate the technique and quality of 3-D CT for children. Materials and Methods : For nine cases, 3-D CT was performed for preoperative diagnosis : three neuroblastomas, two imperforate anus with urinary abnormalities, and one each pulmonary sequestration, CCAM, vascular ring and choledocal cyst. For CT, we used contrast enhancement intravenously and/or directly into the gastrointestinal and urinary tracts. Results : Fine images were obtained for all cases. Relationships between large to mid-sized vessels and tumors were visualized clearly. Complex relations between the gastrointestinal and urinary tracts could also be visualized more precisely than by conventional contrast examinations. Views of the biliary tract were equally useful with ERCP. In all examinations, no complications were encountered. Conclusion : 3-D CT was a useful, easy and safe examination for children as compared to the conventional contrast examination, especially in determining the configuration. It shows promise in providing critical analysis in operative management and for replacing or being used in combination with the conventional contrast examination in the near future.
