Design and construction of a three-dimensional lateral ventricle model based on MRI data / 第二军医大学学报

ABSTRACT

Objective: To construct a three-dimensional (3D) anatomic model of the lateral ventricles for teaching microneurosurgical anatomy and clinical surgery planning. Methods: The 3D model was constructed with a series of 176 MRIT2 head sections of a healthy male volunteer (36 years old) using software Matlab, Geomagic, Maya, etc. The 176 sections were subjected to management with software Matlab for image preprocessing and contour extracting; the acquired contours were subjected to software geomagic for 3D model constructing,3D-model and image connecting and other processings. Results: The 3D model of the lateral ventricles and related structures were successfully constructed using more than 240,000 remodeled polygons, and the contour of the model consisted well with the images. The model had a even better visual effect after combining the 3D-model and image. The model could be viewed from any angle and could be rotated by 360 degrees in any plane using any structure as the focal point of rotation. Moreover, the model could be reduced or enlarged using the zoom function. Conclusion: The constructed 3D model can be observed and studied repeatedly at any time, with no stress from surgery. The model may be used for interactive surgical exercises, paving a way for subsequent clinical practice.