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.
|Title of host publication||Medical Imaging 2018|
|Subtitle of host publication||Ultrasonic Imaging and Tomography|
|Editors||Neb Duric, Brett C. Byram|
|State||Published - 2018|
|Event||Medical Imaging 2018: Ultrasonic Imaging and Tomography - Houston, United States|
Duration: 13 Feb 2018 → 15 Feb 2018
|Name||Progress in Biomedical Optics and Imaging - Proceedings of SPIE|
|Conference||Medical Imaging 2018: Ultrasonic Imaging and Tomography|
|Period||13/02/18 → 15/02/18|
Bibliographical noteFunding Information:
This project was funded by the 133-2-2013-FONDECYT grant of the Peruvian government.
© 2018 SPIE.
- AM-FM analysis
- lung ultrasound