This paper proposes a novel iterative data-adaptive spectral estimation technique for blood velocity estimation using medical ultrasound scanners. The technique makes no assumption on the sampling pattern of the slow-time or the fast-time samples, allowing for duplex mode transmissions where B-mode images are interleaved with the Doppler emissions. Furthermore, the technique is shown, using both simplified and more realistic Field II simulations, to outperform current state-of-the-art techniques, allowing for accurate estimation of the blood velocity spectrum using only 30% of the transmissions, thereby allowing for the examination of two separate vessel regions while retaining an adequate updating rate of the B-mode images. In addition, the proposed method also allows for more flexible transmission patterns, as well as exhibits fewer spectral artifacts as compared to earlier techniques.
|Title of host publication||European Signal Processing Conference|
|Publication status||Published - 2010|
|Event||18th European Signal Processing Conference - Aalborg, Denmark|
Duration: 23 Aug 2010 → 27 Aug 2010
Conference number: 18
|Conference||18th European Signal Processing Conference|
|Period||23/08/2010 → 27/08/2010|