Real time color doppler ultrasound imaging
US5910117A · kind A · utility
7Cited by
3References
5Claims
0Family size
Inventors
Key dates
| Filing date | Feb 18, 1998 |
| Grant date | Jun 8, 1999 |
| Priority date | — |
| Expiry date | Feb 18, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/13
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for generating color Doppler images is implemented in real time using digital processing steps implemented on multi-purpose microprocessors. Processing is reduced by estimating velocity only when a tissue threshold decision for a given sample indicates that the sample is not tissue. Arc tangent calculations in the velocity estimation are performed using simplified look-up tables without sacrificing accuracy. One look-up table is lineraly quantized. A second is nonlinearly quantized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.