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J. Imaging 2019, 5(1), 12; https://doi.org/10.3390/jimaging5010012

Semi-Automatic Algorithms for Estimation and Tracking of AP-Diameter of the IVC in Ultrasound Images

1
Department of Engineering and Applied Sciences, Memorial University, St. John’s, NL A1B 3X5, Canada
2
Faculty of Medicine, Memorial University, St. John’s, NL A1B 3V6, Canada
*
Author to whom correspondence should be addressed.
Received: 29 October 2018 / Revised: 20 December 2018 / Accepted: 4 January 2019 / Published: 9 January 2019
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Abstract

Acutely ill patients presenting with conditions such as sepsis, trauma, and congestive heart failure require judicious resuscitation in order to achieve and maintain optimal circulating blood volume. Increasingly, emergency and critical care physicians are using portable ultrasound to approximate the temporal changes of the anterior–posterior (AP)-diameter of the inferior vena cava (IVC) in order to guide fluid administration or removal. This paper proposes semi-automatic active ellipse and rectangle algorithms capable of improved and quantified measurement of the AP-diameter. The proposed algorithms are compared to manual measurement and a previously published active circle model. Results demonstrate that the rectangle model outperforms both active circle and ellipse irrespective of IVC shape and closely approximates tedious expert assessment. View Full-Text
Keywords: inferior vena cava (IVC); ultrasound imaging; anterior posterior (AP) diameter; active ellipse; active rectangle; volume status inferior vena cava (IVC); ultrasound imaging; anterior posterior (AP) diameter; active ellipse; active rectangle; volume status
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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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Karami, E.; Shehata, M.S.; Smith, A. Semi-Automatic Algorithms for Estimation and Tracking of AP-Diameter of the IVC in Ultrasound Images. J. Imaging 2019, 5, 12.

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