DEVICE AND METHOD FOR COMPUTER SIMULATED MARKING TARGETING BIOPSY
First Claim
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1. A device for Computer Simulated Marking Targeting Biopsy, comprisinga space locator;
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a positioning sub-module;
a tracking sub-module;
a virtual endoscope sub-module; and
a marking targeting biopsy sub-module;
whereinsaid space locator is connected to said main control module, and operates to obtain position and orientation information of a probe of a gastroscope;
said surface model sub-module operates to construct and store a 3D surface model of inner wall of a stomach;
said positioning sub-module operates to collect and store a signal from said space locator;
said tracking sub-module operates to read data in said positioning sub-module and to adjust a position and an orientation of an endoscopic viewpoint in said 3D surface model of the inner wall of the stomach;
said virtual endoscope sub-module operates to endoscopically image and display said 3D surface model of the inner wall of the stomach according to the position and the orientation of said endoscopic viewpoint; and
said marking targeting biopsy sub-module operates to record the position and the orientation of said endoscopic viewpoint, to mark the position and the orientation of said endoscopic viewpoint in said 3D surface model of inner wall of a stomach, and to navigate and display said endoscopic viewpoint during endoscopic imaging of said 3D surface model of the inner wall of the stomach.
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Abstract
A device for Computer Simulated Marking Targeting Biopsy (CSMTB) has at least a space locator, and a main control module, including a surface model sub-module, a positioning sub-module, a tracking sub-module, a virtual endoscope sub-module, and a marking targeting biopsy sub-module. The device accurately detects minimal gastric lesions, and reduces pain to patients and thus decreases the workload of a doctor.
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Citations
6 Claims
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1. A device for Computer Simulated Marking Targeting Biopsy, comprising
a space locator; - and
a main control module, comprising a surface model sub-module; a positioning sub-module; a tracking sub-module; a virtual endoscope sub-module; and a marking targeting biopsy sub-module; wherein said space locator is connected to said main control module, and operates to obtain position and orientation information of a probe of a gastroscope; said surface model sub-module operates to construct and store a 3D surface model of inner wall of a stomach; said positioning sub-module operates to collect and store a signal from said space locator; said tracking sub-module operates to read data in said positioning sub-module and to adjust a position and an orientation of an endoscopic viewpoint in said 3D surface model of the inner wall of the stomach; said virtual endoscope sub-module operates to endoscopically image and display said 3D surface model of the inner wall of the stomach according to the position and the orientation of said endoscopic viewpoint; and said marking targeting biopsy sub-module operates to record the position and the orientation of said endoscopic viewpoint, to mark the position and the orientation of said endoscopic viewpoint in said 3D surface model of inner wall of a stomach, and to navigate and display said endoscopic viewpoint during endoscopic imaging of said 3D surface model of the inner wall of the stomach. - View Dependent Claims (2, 3, 4, 5)
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6. A method for Computer Simulated Marking Targeting Biopsy, comprising
obtaining a slice-scan image sequence of a stomach cavity of a patient by a computed tomography equipment; -
analyzing and performing threshold segmentation on said slice-scan image sequence whereby obtaining a binary image that distinguishes a cavity region of a stomach of the patient from a non-cavity region thereof; extracting an interface between said cavity region and said non-cavity region whereby constructing and rendering a 3D surface model of inner wall of the stomach; obtaining position and orientation information of a probe of a gastroscope via a space locator; adjusting a position and an orientation of an endoscopic viewpoint in said 3D surface model of the inner wall of the stomach according to said position and orientation information of the probe of the gastroscope; endoscopically imaging and displaying said 3D surface model of the inner wall of the stomach according to the position and the orientation of said endoscopic viewpoint; recording the position and the orientation of said endoscopic viewpoint and marking the position and the orientation of said endoscopic viewpoint in said 3D surface model of inner wall of a stomach; and navigating and displaying said endoscopic viewpoint during endoscopic imaging of said 3D surface model of the inner wall of the stomach.
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Specification