Vector mapping of three-dimensionally reconstructed intrabody organs and method of display
US6301496A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1999 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Jul 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/282
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of diagnosing an abnormal condition in a biological structure, such as the heart, including the steps of measuring a physiological response at at least three sampled points on a surface of the biological structure, calculating a vector function related to the response, displaying a representation of the vector function, and inferring the abnormal condition from the representation. The present invention is particularly useful for diagnosing cardiac arrhythmias, in which case the physiological response is a voltage, from which is inferred a local activation time and the vector function is a gradient of the local activation time, specifically, a conduction velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.