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Comparative Approach to Performance Estimation of Pulsed Wave Doppler Equipment Based on Kiviat Diagram
Giorgia Fiori1, Andrea Scorza1, Maurizio Schmid1
1Department of Industrial, Electronic and Mechanical Engineering, University of Roma Tre, 00146 Rome, Italy.
Sensors (Basel, Switzerland)
|October 16, 2024
Summary
This study introduces a novel Kiviat diagram approach to assess ultrasound system performance. The method integrates key parameters for a comprehensive quality index in pulsed wave Doppler imaging.
Area of Science:
- Medical Imaging
- Ultrasound Technology
- Diagnostic Systems
Background:
- Assessing ultrasound system performance is complex due to numerous parameters.
- Existing methods may not fully capture the integrated performance of Pulsed Wave Doppler (PWD) systems.
Purpose of the Study:
- To propose a Kiviat diagram-based integrated approach for quantifying the overall performance of PWD ultrasound systems.
- To establish a unified quality index for clinical applications.
Main Methods:
- Defined and assessed four experimental parameters: average maximum velocity sensitivity (AMVS), velocity measurements accuracy (VeMeA), lowest detectable signal (LDS), and velocity profile discrepancy index (VPDI).
- Developed custom MATLAB-based image analysis methods for parameter assessment using spectral images of a flow phantom.
- Scaled parameters to represent vertices of a Kiviat plot; plot area served as the overall quality index.
Main Results:
- Tested five new ultrasound systems under two conditions using a commercial flow phantom.
- The Kiviat diagram approach provided a quantifiable overall quality index.
- AMVS, VeMeA, and LDS parameters demonstrated robustness in performance assessment.
Conclusions:
- The proposed Kiviat diagram-based approach offers a robust method for assessing PWD ultrasound system quality.
- Further research is recommended for the velocity profile discrepancy index (VPDI).
- This integrated approach aids in the quality assessment of medical ultrasound systems.
Keywords:
Kiviat diagramflow phantommeasurement methodspulsed wave Dopplerquality assessmentultrasound diagnostic systemsMore Related Videos
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