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A Feasibility Study of Smartphone-Based Telesonography for Evaluating Cardiac dynamic Function and Diagnosing Acute Appendicitis with Control of the Image Quality of the Transmitted Videos

Title
A Feasibility Study of Smartphone-Based Telesonography for Evaluating Cardiac dynamic Function and Diagnosing Acute Appendicitis with Control of the Image Quality of the Transmitted Videos
Author
오재훈
Keywords
Telesonography; Clinical imaging viewing; Smartphone
Issue Date
2015-11
Publisher
SPRINGER
Citation
JOURNAL OF DIGITAL IMAGING, v. 29, NO 3, Page 347-356
Abstract
Our aim was to prove the feasibility of the remote interpretation of real-time transmitted ultrasound videos of dynamic and static organs using a smartphone with control of the image quality given a limited internet connection speed. For this study, 100 cases of echocardiography videos (dynamic organ)-50 with an ejection fraction (EF) of a parts per thousand yen50 s and 50 with EF < 50 %-and 100 cases of suspected pediatric appendicitis (static organ)-50 with signs of acute appendicitis and 50 with no findings of appendicitis-were consecutively selected. Twelve reviewers reviewed the original videos using the liquid crystal display (LCD) monitor of an ultrasound machine and using a smartphone, to which the images were transmitted from the ultrasound machine. The resolution of the transmitted echocardiography videos was reduced by approximately 20 % to increase the frame rate of transmission given the limited internet speed. The differences in diagnostic performance between the two devices when evaluating left ventricular (LV) systolic function by measuring the EF and when evaluating the presence of acute appendicitis were investigated using a five-point Likert scale. The average areas under the receiver operating characteristic curves for each reviewer's interpretations using the LCD monitor and smartphone were respectively 0.968 (0.949-0.986) and 0.963 (0.945-0.982) (P = 0.548) for echocardiography and 0.972 (0.954-0.989) and 0.966 (0.947-0.984) (P = 0.175) for abdominal ultrasonography. We confirmed the feasibility of remotely interpreting ultrasound images using smartphones, specifically for evaluating LV function and diagnosing pediatric acute appendicitis; the images were transferred from the ultrasound machine using image quality-controlled telesonography.
URI
https://link.springer.com/article/10.1007%2Fs10278-015-9849-6http://hdl.handle.net/20.500.11754/28633
ISSN
0897-1889; 1618-727X
DOI
10.1007/s10278-015-9849-6
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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