| 摘要 |
The present invention relates to an ultrasound imaging system (100) comprising: an ultrasound probe (10) that comprises a single element ultrasound transducer (16) for transmitting an receiving ultrasound signals; a movement sensor (18) for sensing a displacement-over-time signal x(t) of a displacement (x) of the ultrasound probe (10) relative to an examination object (24) during signal acquisition; an image acquisition hardware (26) that is configured to reconstruct an M-mode ultrasound image from the received ultrasound signals, said reconstructed M-mode ultrasound image being a two-dimensional image I(t,y) comprising multiple one-dimensional depth signals of substantially constant depth (y) in the examination object (24) illustrated over time (t), wherein the image acquisition hardware (26) is further configured to map said M-mode ultra-sound image I(t,y) to a two-dimensional second image I(x,y) comprising the depth signals illustrated over the displacement (x) by using the displacement-over-time signal x(t) that is sensed with the movement sensor (18); and an image analysis unit (48) that is configured to analyse said second image and to detect at least one tissue layer boundary of the examination object (24) in said second image. |
| 主权项 |
1. An ultrasound imaging system comprising:
an ultrasound probe that comprises a single element ultrasound transducer for transmitting and receiving ultrasound signals; a movement sensor for sensing a displacement-over-time signal x(t) of a displacement (x) of the ultrasound probe relative to an examination object during signal acquisition; an image acquisition hardware that is configured to reconstruct an M-mode ultrasound image from the received ultrasound signals, said reconstructed M-mode ultrasound image being a two-dimensional image I(t,y) comprising multiple one-dimensional depth signals of substantially constant depth (y) in the examination object illustrated over time (t), wherein the image acquisition hardware is further configured to map said M-mode ultrasound image I(t,y) to a two-dimensional second image I(x,y) comprising the depth signals illustrated over the displacement (x) by using the displacement-over-time signal x(t) that is sensed with the movement sensor, wherein if a plurality of depth signals are received at a given displacement position (x), the image acquisition hardware is configured to select a processed depth signal for said given displacement position (x) by averaging said plurality of depth signals or selecting one of the plurality of depth signals that has a highest signal-to-noise ratio, and to use the selected processed depth signal for mapping said M-mode ultrasound image I(t,y) to the two-dimensional second image I(x,y); and an image analysis unit that is configured to analyse said second image and to detect at least one tissue layer boundary of the examination object in said second image. |
