Cervical vertebra angle measurement
US11141080B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Mar 13, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure provides a method of measuring the axial rotation of a selected vertebra of a patient using a magnetic resonance (MR) image. The method includes: identifying, in the MR image, two or more features of the selected vertebra; determining a first axis connecting the identified features; identifying, in the MR image, two or more features of the patient's surrounding anatomy that are not features of the selected vertebra; determining a second axis connecting the identified features of the patient's surrounding anatomy; measuring the angular difference between the first and second axes; and determining the axial rotation of the cervical vertebra based on the measurement. In some examples of the disclosure, determining the axial rotation of the cervical vertebra is based on the degree of perpendicularity between the first and second axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.