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Proceedings Paper

B-line detection using amplitude modulation-frequency modulation (AM-FM) features
Author(s): Gustavo Chau; Gabriela Mamani; Edmundo Pozo Fortunić; Sergio Serpa; Omar Zenteno; Dante Ramos; Gilberto Peña; Gilma Fredes; Elizabeth Chura; Eduardo Ticona; Haley Manella; Viveta Lobo; Jeremy Dahl; Benjamín V. Castañeda; Benjamín Castañeda; Roberto Lavarello
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Paper Abstract

Pneumonia is one of the most common acute respiratory infections among pediatric populations worldwide. Ultrasound is becoming increasingly important in the diagnosis of lung diseases as a more portable and safer alternative to X-ray imaging. In the current work, we present a new automatic system for detection of B-lines, one of the distinctive features of pneumonic ultrasound scans, using amplitude modulation-frequency modulation (AM-FM). Features are evaluated on 109 videos obtained from 100 pediatric patients using a Verasonics V1 scanner. Further, the results were compared to the ones obtained with a previously published spectral feature (SF) method. Sensitivities of 92% and 83% and specificities of 91% and 70% were obtained on zone-1 and zone-2 of the lungs, respectively. In contrast, the SF method provided sensitivities of 72% and 68% in zone-1 and zone-2, respectively, and specificities of 68% and 46% in zone-1 and zone-2, respectively. In addition, the AM-FM method allowed increasing the F1-score when compared to the SF method from 70% to 87% and from 61% to 78% in zone-1 and zone-2, respectively. The results suggest the proposed method may be useful for the computer assisted diagnosis of pneumonia.

Paper Details

Date Published: 6 March 2018
PDF: 6 pages
Proc. SPIE 10580, Medical Imaging 2018: Ultrasonic Imaging and Tomography, 105800B (6 March 2018); doi: 10.1117/12.2285224
Show Author Affiliations
Gustavo Chau, Pontificia Univ. Católica del Perú (Peru)
Gabriela Mamani, Pontificia Univ. Católica del Perú (Peru)
Edmundo Pozo Fortunić, Pontificia Univ. Católica del Perú (Peru)
Sergio Serpa, Pontificia Univ. Católica del Perú (Peru)
Omar Zenteno, Pontificia Univ. Católica del Perú (Peru)
Dante Ramos, Hospital Regional de Puno (Peru)
Gilberto Peña, Hospital Regional de Puno (Peru)
Gilma Fredes, Hospital Regional de Puno (Peru)
Elizabeth Chura, Hospital Regional de Puno (Peru)
Eduardo Ticona, Hospital Nacional Dos de Mayo (Peru)
Haley Manella, Stanford Univ. (United States)
Viveta Lobo, Stanford Univ. (United States)
Jeremy Dahl, Stanford Univ. (United States)
Benjamín V. Castañeda, Sociedad Peruana de Farmacología y Terapéutica Experimental (Peru)
Benjamín Castañeda, Pontificia Univ. Católica del Perú (Peru)
Roberto Lavarello, Pontificia Univ. Católica del Perú (Peru)

Published in SPIE Proceedings Vol. 10580:
Medical Imaging 2018: Ultrasonic Imaging and Tomography
Neb Duric; Brett C. Byram, Editor(s)

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