System and method for three-dimensional geometric modeling by extracting and merging two-dimensional contours from CT slice data and CT scout data
US6028907A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | May 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computer system and method solve the problem of getting a useful three-dimensional representation of an object like the spine using a small amount of data. This is done by gathering three-dimensional data in the form of a set of 2D computer tomography (CT) slices of a patient's bones and a coaxial set of 2D CT scout images, which are digital two-dimensional X-ray images that can be produced by a CT scanner; extracting from each of these three-dimensional data sets a corresponding stack of 2D contours; and constructing a 3D geometric model of the object. The main features of spinal deformation are captured by integrating these two sets of three-dimensional data, and constructing from them a three-dimensional geometric model of the spine. Scouts are usually used to monitor CT scan acquisition. Here, they are also used as an essential source of data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.