目的 基于CT扫描原始图像构建小儿肾结石三维模型,为手术方式的选择提供参考。
Objective To provide rationales for selecting surgical procedures through establishing a three-dimensional model of renal stone on computed tomography(CT)in children. Methods Spiral CT in urinary system was performed in 9 children with renal stones.The acquired data stored in DICOM format were imported into medical imaging software Mimics.3D reconstruction was performed through automatic and manual mapping of required areas to obtain the three-dimensional models of renal stones in children.The surgical instrument model was established by mechanical drawing software Solidworks based upon virtual simulation.Operation was performed on three-dimensional model of renal stones. Results The three-dimensional model of renal stone in children,including bones,renal substance,collective system,blood vessels,stones and adjacent organs,was established.And surgical instrument model and virtual operation were completed successfully. Conclusion The three-dimensional modeling of pediatric renal stone combining Mimics software and spiral CT data is both feasible and effective.It can delineate the internal structure of kidney and adjacent viscera.Individualized surgical procedures may be developed with virtual surgical techniques for better preoperative planning.
