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Study on improvement of spatial resolution in element domain for high-framerate ultrasound 高速超音波イメージングにおける素子領域距離分解能向上法 の検討
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hasegawa, Hideyuki |
| Copyright Year | 2016 |
| Abstract | The range spatial resolution is an important factor determining the image quality in ultrasonic imaging. The range spatial resolution in ultrasonic imaging depends on the ultrasonic pulse length, which is determined by the mechanical response of the piezoelectric element in an ultrasonic probe. To improve the range spatial resolution without replacing the transducer elements, signal processing methods have been introduced [1,2]. Such signal processing methods is in general applied to the beamformed ultrasonic signals and work as a filter, which improves the band width of the received ultrasonic signal. To improve the band width of the echo signal, such methods require a reference signal, corresponding to the single ultrasonic pulse. However, the waveform of the received ultrasonic echo varies with depth due to the frequency-dependent attenuation, focusing, nonlinear propagation, etc. In the present study, a method for improvement of the band width of the ultrasonic echo signals in the element domain to reduce the effect of focusing. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.use-jp.org/proceedings/USE16/pdf/1P5-6.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
