Real-time virtual endoscopy
AssigneeSiemens Medical Solutions USA, Inc.
InventorsKlaus J. Kirchberg, Christine H. Lorenz
Life of this patent
Estimating the term…
Abstract
In a method of real-time 3-D visualization and navigation for interventional procedures a position is determined at which data will be acquired, and data is acquired at the position. Features are extracted from the acquired data. A model described by the extracted features is built or updated, wherein updating the model includes calculating at least one acquisition parameter of a set of acquisition parameters. 3-D scenes showing the interior or exterior of one or more organs are displayed using the model or data extracted from the model. A region for updating is determined.
Claims14
A method of real-time 3-D visualization and navigation for interventional procedures, comprising the steps of:
- determining a position at which data will be acquired;
- acquiring image data at the position;
- extracting features from the acquired image data, the features corresponding to boundaries between regions;
- building a model described by the extracted features;
- displaying a 3-D scene in real-time showing one or more of the regions using the model or data extracted from the model;
- allowing a user to navigate through the displayed 3-D scene by changing the position and an orientation of a virtual camera of the 3-D scene display;
- and
- updating at least one of the regions by calculating at least one acquisition parameter of a set of acquisition parameters and controlling a target acquisition area of a scanner acquiring the image data by the at least one acquisition parameter based on the changed position and orientation of the virtual camera of the scanner acquiring the data.
A non-transitory computer readable medium having program instructions stored thereto for implementing a method of real-time 3-D visualization and navigation for interventional procedures when executed in a digital processing device, the method comprising:
- providing a real-time pulse sequence program that allows changing scan parameters during acquisition;
- acquiring slice or volume data;
- extracting boundary locations from the acquired slice or volume data;
- updating a model using the extracted boundary locations, wherein updating the model includes calculating at least one acquisition parameter of a set of acquisition parameters and controlling a scanner acquiring the data by the at least one acquisition parameter to update a slice or volume position;
- displaying 3-D scenes in real-time using the model or data extracted from the model;
- allowing a user to navigate through the displayed 3-D scene by changing a position and an orientation of a virtual camera of the 3-D scene display;
- and
- controlling a target acquisition area of the scanner acquiring the slice or volume data based on the changed position and orientation of the virtual camera of the 3-D scene display.
Dependencies are inferred from the claim text.