Ultrasonic imaging apparatus
US5379771A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1994 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Mar 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8979
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic imaging apparatus comprised of an ultrasonic transducer array that transmits ultrasonic waves to a subject under examination and receives ultrasonic waves reflected from within the subject under examination and a scan controller that controls the transducer array to transmit/receive the ultrasonic waves in the same direction repeatedly and to change the transmitting/receiving direction of the ultrasonic waves in a sectional plane of the subject under examination. The apparatus also includes a detector that detects Doppler shifted frequency data at a plurality of points in the sectional plane from a received signal by the transducer array and a display that displays blood flow of the subject. A memory stores a plurality of types of patterns having a maximum velocity, a minimum velocity and a number of frames per unit time of blood flow to be detected in various combinations. A selector selects a pattern from the types of patterns, and a controller sets a parameter for the number of times the ultrasonic waves are repeatedly transmitted/received, a parameter for a repetition period during which the ultrasonic waves are repeatedly transmitted/received, and a parameter for…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.