Electrical impedance tomography
US5626146A · kind A · utility
130Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Jun 8, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0536
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To improve the reliability of the image or to selectively enhance parts of the image produced by way of a tomographic technique such as electrical impedance tomography (EIT), also known as applied potential tomography (APT), the method and apparatus of the invention provides that the electrical signal measurements be made over varying periods of time. The manner of variation can be related to the relative positions of drive and receive electrode pairs or to the output signal size, either as theoretically expected or as actually measured. The invention can be applied to serial or to parallel data collection techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.