| 摘要 |
PROBLEM TO BE SOLVED: To realize a device to grasp the inner stereoscopic structure of a subject and support accurate puncture, by determining the pixel value of each cubic (voxel) by linear interpolation and repeating the process on all voxels to reorganize plural ultrasonic CT images into spatial 3-dimensional images. SOLUTION: An ultrasonic probe 6 measures a position and posture at a time point imaging each CT image using an arm type digitizer 9. A 3-dimensional reorganization processor 19 comprises an image memory 8, plural digital signal processors 12, and a voxel spatial memory 11. Each digital signal processor 12 has wiring so as to freely read/write in the image memory 8 storing CT images and a voxel space memory 11, and executes coordinates conversion and linear interpolation in high speed to determine each pixel value of all voxels. A calculated 3-dimensional reorganization image is displayed on a display 13 by reading data out the voxel space memory 11 and transillumination converting. |
