Diagnostic ultrasound Doppler imaging system and Doppler imaging method for ultrasonic diagnosis
US5860927A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Jun 3, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/899
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to enable quantitative and ready assessment of the kinetics of a tissue on the basis of motion information of the tissue resulting from analysis performed according to the Doppler method, and to enable ready observation of a temporal change in motion of the tissue, there is provided, as one aspect, a diagnostic ultrasound Doppler imaging system. The system comprises a unit for scanning an object with ultrasonic waves over a cross section of the object to produce an echo signal representing electrical quantities proportional to ultrasonic waves reflected from the object; a unit for extracting from the echo signal a Doppler signal emanating from a tissue in motion inside the object; and a unit for analyzing the frequency of the Doppler signal to obtain two-dimensional image data concerning the motion of the tissue on the cross section frame by frame. The system further comprises a unit for superposing a plurality of old and new frames of the two-dimensional image data computed time-sequentially; and a unit for displaying the superposed two-dimensional image data. The displaying unit includes a circuit for coloring the superposed two-dimensional image data according to the mo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.