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A Robust Automatic Ultrasound Spectral Envelope Estimation

College of Computer Science, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu 610065, China
Author to whom correspondence should be addressed.
Information 2019, 10(6), 199;
Received: 22 April 2019 / Revised: 9 May 2019 / Accepted: 16 May 2019 / Published: 5 June 2019
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Accurate estimation of ultrasound Doppler spectrogram envelope is essential for clinical pathological diagnosis of various cardiovascular diseases. However, due to intrinsic spectral broadening in the power spectrum and speckle noise existing in ultrasound images, it is difficult to obtain the accurate maximum velocity. Each of the standard existing methods has their own limitations and does not work well in complicated recordings. This paper proposes a robust automatic spectral envelope estimation method that is more accurate in phantom recordings and various in-vivo recordings than the currently used methods. Comparisons were performed on phantom recordings of the carotid artery with varying noise and additional in-vivo recordings. The accuracy of the proposed method was on average 8% greater than the existing methods. The experimental results demonstrate the wide applicability under different blood conditions and the robustness of the proposed algorithm. View Full-Text
Keywords: ultrasound; power spectrum; velocity estimation ultrasound; power spectrum; velocity estimation

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Li, J.; Zhang, Y.; Liu, X.; Liu, P.; Yin, H.; Liu, D.C. A Robust Automatic Ultrasound Spectral Envelope Estimation. Information 2019, 10, 199.

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