Method and apparatus for CT image registration
US5636255A · kind A · utility
196Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1996 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Mar 5, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B34/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and system for correlating accuracy of computer tomography (CT) image resolution is described. Small radio-opaque markers having a diameter less than one slice width of a CT scan are embedded in the object, such as a bony skeletal member, to be measured, the object is then CT scanned so that the radio-opaque markers appear in at two slices of the scan. The markers are also physically located by detecting them with a sensor, such as a positioning pointer. Also described is one form of marker comprising a tantalum sphere mounted in a ceramic, preferably alumina, pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.