Method and system for X-ray image generation
AssigneeMAKO Surgical Corp.
InventorMilan Ikits
Life of this patent
Estimating the term…
Abstract
A method of creating an image including providing three-dimensional image data of an anatomy, providing a model of a portion of the anatomy, and creating a virtual radiograph of a target portion of the anatomy using information from the image data and information from the model. The method may further include representing the portion of the anatomy in a modified state, wherein the modified state is a resected, translated, rotated, and/or otherwise modified portion of the anatomy. The method may further include adding a virtual image of a prosthetic device to the virtual radiograph. The virtual radiograph may by created by executing a ray casting process on the three-dimensional image data.
Claims28
A method of creating an image, comprising:
- providing three-dimensional image data of an anatomy;
- providing a model of a portion of the anatomy;
- and
- creating a virtual radiograph of a target portion of the anatomy using information from the image data and information from the model, wherein creating the virtual radiograph comprises:
- calculating a first set of accumulated attenuation values during a first volume ray casting process on the three-dimensional image data;
- adding the first set of accumulated attenuation values to the virtual radiograph;
- calculating a second set of accumulated attenuation values during a second volume ray casting process on three-dimensional image data bounded by the model;
- and
- subtracting the second set of accumulated attenuation values from the virtual radiograph.
An image generation system, comprising:
- a processing circuit having a processor and a memory;
- an input/output interface;
- and
- a display coupled to the input/output interface;
- wherein the processing circuit is configured to:
- retrieve three-dimensional image data of an anatomy;
- retrieve a model of an anatomy corresponding to a portion of the anatomy;
- create a virtual radiograph using information from the three-dimensional image data and the model, wherein creating the virtual radiograph comprises:
- calculating a first set of accumulated attenuation values during a first volume ray casting process on the three-dimensional image data;
- adding the first set of accumulated attenuation values to the virtual radiograph;
- calculating a second set of accumulated attenuation values during a second volume ray casting process on three-dimensional image data bounded by the model;
- and
- subtracting the second set of accumulated attenuation values from the virtual radiograph;
- and
- display the resultant virtual radiograph on the display.
Dependencies are inferred from the claim text.