System and Method for Generating Enhanced Density Distribution in a three Dimensional Model of a Structure for Use in Skeletal Assessment Using a Limited Number of Two Dimensional Views

摘要

A method of generating a density enhanced model of an object is described. The method includes generating a customized a model of an object using a pre-defined set of models in combination with at least one projection image of the object, where the customized model is formed of a plurality of volume elements including density information. A density map is generated by relating a synthesized projection image of the customized model to an actual projection image of the object. Gains from the density map are back-projected into the customized model to provide a density enhanced customized model of the object. Because the density map is calculated using information from the synthesized projection image in combination with actual projection images of the structure, it has been shown to provide spatial geometry and volumetric density results comparable to those of QCT but with reduced patient exposure, equipment cost and examination time.

主权项

1. A method of generating a density enhanced customized model of an object comprising:
generating a customized model of an object using a generic model of the object, the customized model comprising at least one volume element, the at least one volume element including density information; generating a density map using a synthesized projection image of the customized model and a projection image of the object; modifying the density information of the at least one volume element with information from the density map into the customized model to provide a density enhanced customized model of the object; and performing at least one of storing the density enhanced customized model of the object and displaying the density enhanced customized model of the object on a user display.