Method of determining stenosis of blood vessels
US4692864A · kind A · utility
22Cited by
6References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1985 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | May 23, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/3205
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of quantitatively determining the stenosis of the blood vessel using a digital subtraction angiographic image of the blood vessel. The method includes obtaining numbers proportional to the cross sectional areas of the blood vessel at stenosis portions and normal portions by obtaining density profiles less residual background from the images at those portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.