System and method for computing oral bone mineral density with a panoramic x-ray system
US7471761B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2005 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Sep 15, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4429
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of computing oral bone mineral density using a panoramic x-ray system. A reference phantom having a known density is provided. A digital panoramic image of a body part and the reference phantom is obtained by irradiating the body part and the reference phantom. The reference phantom is disposed in a location free from anatomical features and in the same scan line as the body part. A relationship is established between a region of the image corresponding to a portion of the body part and a region of the image corresponding to the reference phantom. Bone mineral density is calculated based upon the established relationship and the known density of the reference phantom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.