Ultrasonic imaging system capable of displaying 3-dimensional angiogram in real time mode
US5282471A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1992 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Jul 27, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/916
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In an ultrasonic imaging system, an ultrasonic angiographic image of a blood vessel, equivalent to an X-ray angiographic image, is produced in a real time by utilizing an IIR digital filter with a ROM and a frame memory. The ultrasonic imaging system comprises: a scanning unit for scanning a biological body under medical examination within a three-dimensional scanning plane involving the biological body by utilizing ultrasonic pulses to obtain echo signals produced from echo pulses reflected from the biological body; an ultrasonic image data producing unit for producing a plurality of ultrasonic scanned image data about the scanned biological body with regard to the respective scanning planes in response to the echo signals; a bloodflow-distribution image data producing unit for producing a plurality of bloodflow-distribution image data about the scanned biological body with regard to the respective scanning planes in response to the echo signals; a storage unit for temporarily storing the plurality of bloodflow-distribution image data, while sequentially updating and superimposing the plural bloodflow-distribution image data with each other during a predetermined scanning period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.