Ultrasonic diagnostic apparatus for reducing an influence of uneven rotation of a flexible shaft
US8444567B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Mar 10, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/483
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In an ultrasonic diagnostic apparatus using an ultrasonic probe of a mechanical radial scanning type for intracavity observation, stable Doppler mode images with respect to an ROI or a gate position can be generated by reducing an influence of uneven rotation of a flexible shaft. The apparatus includes: a signal processing unit for performing orthogonal detection processing or orthogonal sampling processing on a reception signal to generate a complex baseband signal; a memory for storing the complex baseband signal for at least two frames generated based on ultrasonic echoes received along plural lines; a line selecting unit for selecting one line in each frame from among the plural lines based on the complex baseband signal; and an image signal generating unit for generating an image signal representing information on blood flow based on the complex baseband signal with reference to the line selected in each frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.