Method and system for ultrasound blood flow imaging and volume flow calculations
US6780155B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Dec 18, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8981
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasound imaging method and system includes a two-dimensional array transducer scanhead coupled to a beamformer. The beamformer and scanhead obtain signals corresponding to ultrasound echoes reflected from a measurement volume extending across a blood vessel. The signals are processed by a Doppler processor to generate data corresponding to a three-dimensional Doppler image of blood flow velocity in the sample volume. The signals are also processed by a B-mode processor to generate data corresponding to a cross section through the vessel. An image processor transforms the data corresponding to the three-dimensional Doppler image to data corresponding to a projection of the three-dimensional Doppler image onto a plane. The image processor also combines the transformed Doppler data with the B-mode data to create a composite image. Volume flow rate can also be determined by integrating the flow velocity in the projection of the three-dimensional Doppler image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.